CN103972978B

CN103972978B - Uninterrupted power source battery sharing system and control method thereof

Info

Publication number: CN103972978B
Application number: CN201410189566.3A
Authority: CN
Inventors: 杜伟; 刘�东; 陈志彬; 杨文泉; 汤贤椿
Original assignee: Xiamen Kehua Hengsheng Co Ltd
Current assignee: Xiamen Kehua Hengsheng Co Ltd
Priority date: 2014-05-07
Filing date: 2014-05-07
Publication date: 2016-08-24
Anticipated expiration: 2034-05-07
Also published as: CN103972978A

Abstract

The present invention relates to a kind of uninterrupted power source battery sharing system and control method thereof, wherein, uninterrupted power source battery sharing system includes the first switching circuit, the second switching circuit, the 3rd switching circuit, the first voltage sampling circuit, the second voltage sampling circuit, tertiary voltage sample circuit, the 4th voltage sampling circuit and control module.The uninterrupted power source battery sharing system of the present invention, possesses that circuit structure is simple, low cost, to machine capability, type is without too strict requirements, and the battery that only need to configure rationally, controls logic simple and reliable, improve the utilization rate of battery, extension device standby time in redundancy UPS.

Description

Uninterrupted power source battery sharing system and control method thereof

Technical field

The present invention relates to uninterrupted power source battery sharing field, especially a kind of uninterrupted power source battery sharing system and Control method.

Background technology

To the quality of power supply, modern data center etc. require that higher place is equipped with uninterrupted power source, in order to further Improve the reliability of electric power system, generally use multi-machine parallel connection redundancy or N+X redundancy, two or more UPS carry For electric energy.Conventional batteries configuration mode is, every UPS is equipped with independent battery pack, when certain UPS fault, joins therewith Standby battery the most dull need not, reduce the utilization rate of battery.The especially occasion of the preparation time length of super high power, it is joined The standby cost input by battery is by the highest with the cost of UPS complete machine.It is badly in need of wanting a kind of multi-machine shared battery pack Solution so that during UPS multi-computer Redundancy, required battery pack demand can reduce.When multiple stage UPS uses simultaneously, certain After UPS hostdown, its joined battery pack can be the function that other UPS main frame provides reserve battery, increases its preparation time, carries High system reliability.

Existing CB common battery prescription case mainly includes being provided for different inversion systems by speed-sensitive switch timesharing by battery pack The method of energy；Each each battery set charge/discharge of UPS coordinated management and relay protective scheme；Female by each system of single-way switch device isolation The method of line.These methods can realize the function of battery pack function, but its control program is complicated, and it is equal to need to solve battery The various challenges of circulation between stream and UPS, these issue handlings are bad, necessarily increase the danger of trouble point, and realize Method is complicated, and maintenance cost is higher.

In the scheme that in patent 201010131241.1, told battery pack shares, the control of battery discharging is complex, Need each self-forming to control loop and realize the battery otherness to every UPS function；The charge function of battery is also required to The problem solving not current-sharing, the problem such as bus non-isolated, in fact it could happen that certain separate unit UPS charge circuit undertakes the load of multiple stage UPS, The danger that all UPS shut down is caused eventually owing to cell voltage is too low.

Patent 201010158022.2 is also required to solve the not current-sharing simultaneously for the charging of CB common battery group of the multiple stage UPS main frame and asks Topic, needs the work such as design and checking of more control algolithm on the basis of original UPS designs.

Although the UPS main frame of CB common battery group is simply isolated by 201010197880.8 with one-way conduction unit, fall The scope that low trouble point expands, but stop the risk that trouble point expands the most completely, the uneven flow problem of busbar charging is still deposited , need to increase respective algorithms and carry out sharing control.

Summary of the invention

In view of this, it is an object of the invention to provide a kind of uninterrupted power source battery sharing system and control method thereof, for Improving the utilization rate of battery pack in redundancy UPS, extension device standby time, circuit structure is simple, low cost, it is not necessary to solve battery The challenge such as circulation between current-sharing and UPS, control method is simple, does not increase the danger of system failure point, possesses reliable high property Battery sharing system.

The present invention uses below scheme to realize: a kind of uninterrupted power source battery sharing system, it is characterised in that: include first Switching circuit, the second switching circuit, the 3rd switching circuit, the first voltage sampling circuit, the second voltage sampling circuit, tertiary voltage Sample circuit, the 4th voltage sampling circuit and control module；

Described control module connects that described first switching circuit controls end, described second switching circuit controls end, described the Three switching circuits control end, a UPS host computer control end and the 2nd UPS host computer control end, and described control module is also connected with described First voltage sampling circuit output, described second voltage sampling circuit output, described tertiary voltage sample circuit output With described 4th voltage sampling circuit output；

A described UPS main frame bus connects described first voltage sampling circuit input and described first switching circuit one End, the described first switching circuit other end connects described second voltage sampling circuit input, described 3rd switching circuit one end With a UPS battery；

Described 2nd UPS main frame bus connects described tertiary voltage sample circuit input and described second switching circuit one End, described second the switching circuit other end connect described 4th voltage sampling circuit input, described 3rd switching circuit another End and the 2nd UPS battery；

Described first switching circuit include parallel connection the first main switch and the first buffer circuit, described first buffer circuit by First auxiliary switch and the first buffer resistance are in series；Described second switching circuit includes second main switch and second of parallel connection Buffer circuit, described second buffer circuit is in series by the second auxiliary switch and the second buffer resistance；The 3rd described switching Circuit is made up of the 3rd main switch.

In an embodiment of the present invention, described 3rd switching circuit also includes that one is connected in parallel on described 3rd main switch two ends 3rd buffer circuit, described 3rd buffer circuit is in series by the 3rd auxiliary switch and the 3rd buffer resistance.

The present invention also provides for the control method of a kind of uninterrupted power source battery sharing system, it is characterised in that described control Module monitors the oneth UPS main frame and the 2nd UPS operational state of mainframe, for judging a UPS battery discharging loop and second Whether UPS battery discharging loop normal, and according to a UPS main frame busbar voltage, the 2nd UPS main frame busbar voltage, first UPS battery tension and the 2nd UPS battery tension control the first main switch of the first switching circuit and the first auxiliary switch, Second main switch of two switching circuits and the duty of the 3rd main switch of the second auxiliary switch and the 3rd switching circuit, tool Body step is as follows:

Step S11: monitoring the oneth UPS battery and the running status of the 2nd UPS battery in real time, and according to battery shape Battery condition is masked as " 00 ", " 01 ", " 10 " or " 11 " by state monitored results, as a UPS storage battery under-voltage and the 2nd UPS Storage battery under-voltage, then battery condition is masked as " 00 "；When a UPS storage battery under-voltage and the 2nd UPS battery are the most under-voltage, then Battery condition is masked as " 01 ", when a UPS battery is the most under-voltage and the 2nd UPS storage battery under-voltage, then and battery condition mark Will is " 10 ", when a UPS battery is the most under-voltage and the 2nd UPS battery is the most under-voltage, then battery condition is masked as " 11 ", enters Enter step S12；

Step S12: judge whether battery condition mark is " 00 ", if battery condition is masked as " 00 ", then terminates；No Then enter step S13；

Step S13: monitoring the oneth UPS battery discharging loop and the 2nd UPS battery discharging loop state in real time, and root According to battery discharging loop state monitored results, battery discharging loop state is masked as " 00 ", " 01 ", " 10 " or " 11 ", when Oneth UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is abnormal, then battery discharging loop state mark For " 00 ", when a UPS battery discharging loop, extremely and the 2nd UPS battery discharging loop is normal, then battery discharging is returned Line state is masked as " 01 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop is abnormal, then stores Battery discharge loop state is masked as " 10 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop Normally, then battery discharging loop state is masked as " 11 ", enters step S14；

Step S14: judge whether battery discharging loop state mark is " 00 ", if battery discharging loop state mark For " 00 ", then terminate；Otherwise enter step S15；

Step S15: judge whether battery discharging loop state mark is " 11 ", if battery discharging loop state mark For " 11 ", then terminate；Otherwise enter step S16；

Step S16: judge that battery condition mark is the most identical with battery discharging loop state mark, if identical, then Terminate；Otherwise enter step S17；

Step S17: judge whether battery discharging loop state mark is " 10 ", if battery discharging loop state mark For " 10 ", then enter step S111；Otherwise enter step S18；

Step S18: a UPS battery is switched to the 2nd UPS main frame and uses, enter step S19；

Step S19: judge that a UPS battery discharging loop is the most abnormal, if a UPS battery discharging loop is different Often, then terminate, otherwise enter step S110；

Step S110, connects the shared UPS main frame that switches to by a UPS battery from the 2nd UPS main frame and uses, and Terminate；

Step S111: the 2nd UPS battery is switched to a UPS main frame and uses, enter step S112；

Step S112: judge that the 2nd UPS battery discharging loop is the most abnormal, if the 2nd UPS battery discharging loop is different Often, then terminate, otherwise enter step S113；

Step S113, connects shared the 2nd UPS main frame that switches to by the 2nd UPS battery from a UPS main frame and uses, and Terminate；

Wherein, in step S18, a UPS battery being switched to the 2nd UPS main frame and uses, implementing step is: step Rapid S18-01, disconnects the first main switch so that it is be off, and the first auxiliary switch remains off；Step S18-02, Turn on the 3rd main switch so that it is in the conduction state；

Wherein, in step S111, the 2nd UPS battery being switched to a UPS main frame and uses, implementing step is: Step S111-01, disconnects the second main switch so that it is be off, and the second auxiliary switch remains off；Step S111-02, turns on the 3rd main switch so that it is in the conduction state.

In an embodiment of the present invention, in described step S110, a UPS battery is connected altogether from the 2nd UPS main frame Using with switching to a UPS main frame, implementing step is:

Step S110-01, disconnects the 3rd main switch so that it is be off；Step S110-02, conducting the first auxiliary Switch so that it is in the conduction state, opens the first buffer circuit；Step S110-03, after continuing for some time, first turns on first Main switch so that it is in the conduction state；Rear disconnection the first auxiliary switch so that it is be off；

In described step S113, the 2nd UPS battery is shared from a UPS main frame connection and switches to the 2nd UPS main frame Using, implementing step is:

Step S113-01, disconnects the 3rd main switch so that it is be off；Step S113-02, conducting the second auxiliary Switch so that it is in the conduction state, opens the second buffer circuit；Step S113-03, after continuing for some time, first turns on second Main switch so that it is in the conduction state；Rear disconnection the second auxiliary switch so that it is be off.

Step S110-11, disconnects the 3rd main switch so that it is be off；Step S110-12, it is judged that a UPS master Whether the voltage difference of machine bus and a UPS battery is more than or equal to voltage difference threshold value；The most then enter step S110-13, Otherwise enter step S110-15；Step S110-13, turns on the first auxiliary switch so that it is in the conduction state, opens first and delays Rush circuit, enter step S110-14；Step S110-14, after continuing for some time, first turns on the first main switch so that it is be in and lead Logical state；Rear disconnection the first auxiliary switch so that it is be off；Step S110-15, turns on the first main switch so that it is place In conducting state, the first auxiliary switch remains off；

Step S113-11, disconnects the 3rd main switch so that it is be off；Step S113-12, it is judged that the 2nd UPS master Whether the voltage difference of machine bus and the 2nd UPS battery is more than or equal to voltage difference threshold value；The most then enter step S113-13, Otherwise enter step S113-15；Step S113-13, turns on the second auxiliary switch so that it is in the conduction state, opens second and delays Rush circuit；Step S113-14, after continuing for some time, first turns on the second main switch so that it is in the conduction state；Rear disconnection Two auxiliary switches so that it is be off；Step S113-15, turns on the second main switch so that it is in the conduction state, and second Auxiliary switch remains off.

The present invention additionally provides the control method of a kind of uninterrupted power source battery sharing system, described control module monitoring the One UPS main frame and the 2nd UPS operational state of mainframe, for judging that a UPS battery discharging loop and the 2nd UPS battery are put Electricity loop is the most normal, and according to a UPS main frame busbar voltage, the 2nd UPS main frame busbar voltage, a UPS storage battery Pressure and the 2nd UPS battery tension control the first main switch and the first auxiliary switch, second switching circuit of the first switching circuit The second main switch and the second auxiliary switch and the 3rd main switch of the 3rd switching circuit and the work shape of the 3rd auxiliary switch State, specifically comprises the following steps that

Step S21: monitoring the oneth UPS battery and the running status of the 2nd UPS battery in real time, and according to battery shape Battery condition is masked as " 00 ", " 01 ", " 10 " or " 11 " by state monitored results, as a UPS storage battery under-voltage and the 2nd UPS Storage battery under-voltage, then battery condition is masked as " 00 "；When a UPS storage battery under-voltage and the 2nd UPS battery are the most under-voltage, then Battery condition is masked as " 01 ", when a UPS battery is the most under-voltage and the 2nd UPS storage battery under-voltage, then and battery condition mark Will is " 10 ", when a UPS battery is the most under-voltage and the 2nd UPS battery is the most under-voltage, then battery condition is masked as " 11 ", enters Enter step S22；

Step S22: judge whether battery condition mark is " 00 ", if battery condition is masked as " 00 ", then terminates；No Then enter step S23；

Step S23: monitoring the oneth UPS battery discharging loop and the 2nd UPS battery discharging loop state in real time, and root According to battery discharging loop state monitored results, battery discharging loop state is masked as " 00 ", " 01 ", " 10 " or " 11 ", when Oneth UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is abnormal, then battery discharging loop state mark For " 00 ", when a UPS battery discharging loop, extremely and the 2nd UPS battery discharging loop is normal, then battery discharging is returned Line state is masked as " 01 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop is abnormal, then stores Battery discharge loop state is masked as " 10 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop Normally, then battery discharging loop state is masked as " 11 ", enters step S24；

Step S24: judge whether battery discharging loop state mark is " 00 ", if battery discharging loop state mark For " 00 ", then terminate；Otherwise enter step S25；

Step S25: judge whether battery discharging loop state mark is " 11 ", if battery discharging loop state mark For " 11 ", then terminate；Otherwise enter step S26；

Step S26: judge that battery condition mark is the most identical with battery discharging loop state mark, if identical, then Terminate；Otherwise enter step S27；

Step S27: judge whether battery discharging loop state mark is " 10 ", if battery discharging loop state mark For " 10 ", then step S211；Otherwise enter step S28；

Step S28: a UPS battery is switched to the 2nd UPS main frame and uses, enter step S29；

Step S29: judge that a UPS battery discharging loop is the most abnormal, if a UPS battery discharging loop is different Often, then terminate, otherwise enter step S210；

Step S210, connects the shared UPS main frame that switches to by a UPS battery from the 2nd UPS main frame and uses, and Terminate；

Step S211: the 2nd UPS battery is switched to a UPS main frame and uses, enter step S212；

Step S212: judge that the 2nd UPS battery discharging loop is the most abnormal, if the 2nd UPS battery discharging loop is different Often, then terminate, otherwise enter step S213；

Step S213, connects shared the 2nd UPS main frame that switches to by the 2nd UPS battery from a UPS main frame and uses, and Terminate.

In an embodiment of the present invention, in described step S28, a UPS battery is switched to the 2nd UPS main frame and makes With, implementing step is:

Step S28-11, disconnects the first main switch so that it is be off, and the first auxiliary switch remains off； Step S28-12, turns on the 3rd auxiliary switch so that it is in the conduction state, opens the 3rd buffer circuit；Step S28-13, continues After a period of time, first conducting the 3rd main switch so that it is in the conduction state；Rear disconnection the 3rd auxiliary switch so that it is be in disconnection State；

In described step S211, the 2nd UPS battery being switched to a UPS main frame and uses, implementing step is:

Step S211-11, disconnects the second main switch so that it is be off, and the second auxiliary switch remains off； Step S211-12, turns on the 3rd auxiliary switch so that it is in the conduction state, opens the 3rd buffer circuit；Step S211-13, holds After continuous a period of time, first conducting the 3rd main switch so that it is after in the conduction state, rear disconnection the 3rd auxiliary switch so that it is be in Off-state.

Step S28-21, disconnects the first main switch so that it is be off, and the first auxiliary switch remains off； Step S28-22, it is judged that whether the voltage difference of a UPS battery and the 2nd UPS battery is more than or equal to voltage difference threshold value； The most then enter step S28-23, otherwise enter step S28-25；Step S28-23, turns on the 3rd auxiliary switch so that it is be in Conducting state, opens the 3rd buffer circuit；Step S28-24, after continuing for some time, first conducting the 3rd main switch so that it is be in Conducting state；Rear disconnection the 3rd auxiliary switch so that it is be off；Step S28-25, turns on the 3rd main switch so that it is place In conducting state, the 3rd auxiliary switch remains off；

Step S211-21, disconnects the second main switch so that it is be off, and the second auxiliary switch remains off； Step S211-22, it is judged that whether the voltage difference of a UPS battery and the 2nd UPS battery is more than or equal to voltage difference threshold value； The most then enter step S28-23, otherwise enter step S28-25；Step S211-23, turns on the 3rd auxiliary switch so that it is place In conducting state, open the 3rd buffer circuit；Step S211-24, after continuing for some time, first conducting the 3rd main switch so that it is In the conduction state；Rear disconnection the 3rd auxiliary switch so that it is be off；Step S211-25, turns on the 3rd main switch, Being at conducting state, the 3rd auxiliary switch remains off.

In an embodiment of the present invention, in described step S210, a UPS battery is connected altogether from the 2nd UPS main frame Using with switching to a UPS main frame, implementing step is:

Step S210-21, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains off； Step S210-22, turns on the first auxiliary switch so that it is in the conduction state, opens the first buffer circuit；Step S210-23, holds After continuous a period of time, first turn on the first main switch so that it is in the conduction state；Rear disconnection the first auxiliary switch so that it is be in disconnected Open state；

In described step S213, the 2nd UPS battery is shared from a UPS main frame connection and switches to the 2nd UPS main frame Using, implementing step is:

Step S213-11, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains off； Step S213-12, turns on the second auxiliary switch so that it is in the conduction state, opens the second buffer circuit；Step S213-13, holds After continuous a period of time, first turn on the second main switch so that it is in the conduction state；Rear disconnection the second auxiliary switch so that it is be in disconnected Open state.

In an embodiment of the present invention, a UPS battery is connected shared by described step S210 from the 2nd UPS main frame Switching to a UPS main frame use, implementing step is:

Step S210-31, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains off； Step S210-32, it is judged that whether the voltage difference of a UPS main frame bus and a UPS battery is more than or equal to voltage difference limen Value；The most then enter step S210-33；Step S210-33, turns on the first auxiliary switch so that it is in the conduction state, opens First buffer circuit；Step S210-34, after continuing for some time, first turns on the first main switch so that it is in the conduction state；After Disconnect the first auxiliary switch so that it is be off；Step S210-35, turns on the first main switch so that it is be on shape State, the first auxiliary switch remains off；

Step S213-21, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains open；Step S213-22, it is judged that whether the voltage difference of the 2nd UPS main frame bus and the 2nd UPS battery is more than or equal to voltage difference threshold value；If It is then to enter step S213-23；Step S213-23, turns on the second auxiliary switch so that it is in the conduction state, opens second and delays Rush circuit；Step S213-24, after continuing for some time, first turns on the second main switch so that it is in the conduction state；Rear disconnection Two auxiliary switches so that it is be off；Step S213-25, turns on the second main switch so that it is in the conduction state, and second Auxiliary switch remains off.

Compared with prior art, the present invention has the beneficial effect that:

1, the uninterrupted power source battery sharing system of the present invention, possesses that circuit structure is simple, low cost, to machine capability, Type is without too strict requirements, and the battery that only need to configure rationally, controls logic simple and reliable, improves electric power storage in redundancy UPS The utilization rate in pond, the extension device standby time.

2, in the uninterrupted power source battery sharing system of the present invention, first to the is controlled by reasonably switching switching logic The duty of three switching circuits, it is ensured that the bus of a UPS and the 2nd UPS is completely isolated, to participating in CB common battery group UPS main frame type is unrestricted, has stopped the fault that bus circulation causes, it is not necessary to considers the problems such as heat radiation, not current-sharing, decreases control Complicated control logic that equalizaing charge electric current processed brings and control algolithm, will not introduce new trouble point, can be prevented effectively from by In the possibility expanded further introducing the function causing trouble that battery pack shares, it is ensured that participate in the UPS master that battery pack shares The reliability of machine.

3, control method of the present invention, when not starting battery sharing function, is independent of each other for battery charging, corresponding UPS gives corresponding battery charging, and when battery is switched to the use of another UPS main frame, this UPS main frame can give two simultaneously Platform UPS battery charges, it is ensured that battery can supplement energy in time.Meanwhile, battery sharing system, do not affect the normal work of UPS Make.

4, increase necessary buffer circuit, prevent owing to pressure reduction is excessive to circuit or the impact of device.

For making the purpose of the present invention, technical scheme and advantage clearer, below will be by specific embodiment and phase Close accompanying drawing, the present invention is described in further detail.

Accompanying drawing explanation

Fig. 1 is the system principle diagram of the present invention.

Fig. 2 is system principle diagram in first embodiment of the invention.

Fig. 3 is control method flow chart in first embodiment of the invention.

Fig. 4 is step S11 flow chart in first embodiment of the invention.

Fig. 5 is step S13 flow chart in first embodiment of the invention.

Fig. 6 is step S18 flow chart in first embodiment of the invention.

Fig. 7 is step S110 first method flow chart in first embodiment of the invention.

Fig. 8 is step S110 second method flow chart in first embodiment of the invention.

Fig. 9 is step S111 flow chart in first embodiment of the invention.

Figure 10 is step S113 first method flow chart in first embodiment of the invention.

Figure 11 is step S113 second method flow chart in first embodiment of the invention.

Figure 12 is system principle diagram in second embodiment of the invention.

Figure 13 is step S28 first method flow chart in second embodiment of the invention.

Figure 14 is step S28 second method flow chart in second embodiment of the invention.

Figure 15 is step S210 first method flow chart in second embodiment of the invention.

Figure 16 is step S210 second method flow chart in second embodiment of the invention.

Figure 17 is step S211 first method flow chart in second embodiment of the invention.

Figure 18 is step S211 second method flow chart in second embodiment of the invention.

Figure 19 is step S213 first method flow chart in second embodiment of the invention.

Figure 20 is step S213 second method flow chart in second embodiment of the invention.

Detailed description of the invention

Embodiment 1

As depicted in figs. 1 and 2, the present invention provides a kind of uninterrupted power source battery sharing system to include the first switching circuit 12, second switching circuit the 22, the 3rd switching circuit the 36, first voltage sampling circuit the 31, second voltage sampling circuit the 32, the 3rd electricity Pressure sample circuit the 33, the 4th voltage sampling circuit 34 and control module 35；

Described control module connects that described first switching circuit controls end, described second switching circuit controls end, described the Three switching circuits control end, a UPS main frame 11 controls end and the 2nd UPS main frame 21 controls end, and described control module is also connected with Described first voltage sampling circuit output, described second voltage sampling circuit output, described tertiary voltage sample circuit are defeated Go out end and described 4th voltage sampling circuit output；

A described UPS main frame bus connects described first voltage sampling circuit input and described first switching circuit one End, the described first switching circuit other end connects described second voltage sampling circuit input, described 3rd switching circuit one end With a UPS battery 13；

Described 2nd UPS main frame bus connects described tertiary voltage sample circuit input and described second switching circuit one End, described second the switching circuit other end connect described 4th voltage sampling circuit input, described 3rd switching circuit another End and the 2nd UPS battery 23；

Described first switching circuit includes the first main switch SW1 and first buffer circuit of parallel connection, described first buffering electricity It route the first auxiliary switch S1 and the first buffer resistance R1 in series；Described second switching circuit includes that the second master of parallel connection opens Closing SW2 and the second buffer circuit, described second buffer circuit is in series by the second auxiliary switch S2 and the second buffer resistance R2； The 3rd described switching circuit is made up of the 3rd main switch SW3.

Wherein the first buffer circuit, for preventing the first main switch SW1 two ends pressure reduction excessive, turns at the first main switch SW1 Before, first the first main switch SW1 two ends can be realized the balance of voltage by the first buffer circuit, the second buffer circuit, for preventing second Main switch SW2 two ends pressure reduction is excessive, before the second main switch SW2 conducting, and can be by the second buffer circuit first to the second main switch SW2 Two ends realize the balance of voltage.3rd buffer circuit, for preventing the 3rd main switch SW3 two ends pressure reduction excessive, at the 3rd main switch SW3 Before conducting, first the 3rd main switch SW3 two ends can be realized the balance of voltage by the 3rd buffer circuit.First main switch SW1, the second master Switch SW2 and the 3rd main switch SW3 uses high-power contactor (high-power thyristor also can be used to coordinate suitable heat radiation dress Put).

As it is shown on figure 3, the present invention also provides for the controlling party of one (as shown in Figure 1) uninterrupted power source battery sharing system Method, described control module monitoring the oneth UPS main frame and the 2nd UPS operational state of mainframe, for judging a UPS battery discharging Loop and the 2nd UPS battery discharging loop are the most normal, and according to a UPS main frame busbar voltage, the 2nd UPS main frame bus Voltage, a UPS battery tension and the 2nd UPS battery tension control the first main switch SW1 and of the first switching circuit The of one auxiliary switch S1, the second main switch SW2 and the second auxiliary switch S2 of the second switching circuit and the 3rd switching circuit The duty of three main switch SW3, specifically comprises the following steps that

Step S11: as shown in Figure 4, in real time monitoring the oneth UPS battery and the running status of the 2nd UPS battery, and root According to battery condition monitored results, battery condition is masked as " 00 ", " 01 ", " 10 " or " 11 ", when a UPS battery is owed Pressure and the 2nd UPS storage battery under-voltage, then battery condition is masked as " 00 "；When a UPS storage battery under-voltage and the 2nd UPS electric power storage Pond is the most under-voltage, then battery condition is masked as " 01 ", when a UPS battery is the most under-voltage and the 2nd UPS storage battery under-voltage, then stores Battery status is masked as " 10 ", when a UPS battery is the most under-voltage and the 2nd UPS battery is the most under-voltage, then and battery condition mark Will is " 11 ", enters step S12；

Step S13: as it is shown in figure 5, monitoring the oneth UPS battery discharging loop and the 2nd UPS battery discharging are returned in real time Line state, and according to battery discharging loop state monitored results battery discharging loop state is masked as " 00 ", " 01 ", " 10 " or " 11 ", when a UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is abnormal, then battery is put Electricity loop state is masked as " 00 ", when a UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is normal, Then battery discharging loop state is masked as " 01 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging Loop is abnormal, then battery discharging loop state is masked as " 10 ", when a UPS battery discharging loop is normal and the 2nd UPS Battery discharging loop is normal, then battery discharging loop state is masked as " 11 ", enters step S14；

Wherein, as shown in Figure 6, in step S18, a UPS battery is switched to the 2nd UPS main frame and uses, specifically real Existing step is: step S18-01, disconnects the first main switch SW1 so that it is be off, and the first auxiliary switch S1 remains open State；Step S18-02, turns on the 3rd main switch SW3 so that it is in the conduction state；

Wherein, as it is shown in figure 9, in step S111, the 2nd UPS battery is switched to a UPS main frame and uses, specifically real Existing step is: step S111-01, disconnects the second main switch SW2 so that it is be off, and the second auxiliary switch S2 keeps disconnected Open state；Step S111-02, turns on the 3rd main switch SW3 so that it is in the conduction state.

As it is shown in fig. 7, in described step S110, connect a UPS battery from the 2nd UPS main frame to share and switch to the One UPS main frame uses, and implementing step is:

Step S110-01, disconnects the 3rd main switch SW3 so that it is be off；Step S110-02, conducting first is auxiliary Help switch S1 so that it is in the conduction state, open the first buffer circuit；Step S110-03, after continuing for some time, first turns on First main switch SW1 so that it is in the conduction state；Rear disconnection the first auxiliary switch S1 so that it is be off；

As shown in Figure 10, in described step S113, the 2nd UPS battery is connected shared switching to from a UPS main frame 2nd UPS main frame uses, and implementing step is:

Step S113-01, disconnects the 3rd main switch SW3 so that it is be off；Step S113-02, conducting second is auxiliary Help switch S2 so that it is in the conduction state, open the second buffer circuit；Step S113-03, after continuing for some time, first turns on Second main switch SW2 so that it is in the conduction state；Rear disconnection the second auxiliary switch S2 so that it is be off.

As shown in Figure 8, in described step S110, connect to share from the 2nd UPS main frame by a UPS battery and switch to the One UPS main frame uses, and implementing step is:

Step S110-11, disconnects the 3rd main switch SW3 so that it is be off；Step S110-12, it is judged that first Whether the voltage difference of UPS main frame bus and a UPS battery is more than or equal to voltage difference threshold value；The most then enter step S110-13, otherwise enters step S110-15；Step S110-13, turns on the first auxiliary switch S1 so that it is in the conduction state, Open the first buffer circuit, enter step S110-14；Step S110-14, after continuing for some time, first turns on the first main switch SW1 so that it is in the conduction state；Rear disconnection the first auxiliary switch S1 so that it is be off；Step S110-15, conducting the One main switch SW1 so that it is in the conduction state, the first auxiliary switch S1 remain off；

As shown in figure 11, in described step S113, the 2nd UPS battery is connected shared switching to from a UPS main frame 2nd UPS main frame uses, and implementing step is:

Step S113-11, disconnects the 3rd main switch SW3 so that it is be off；Step S113-12, it is judged that second Whether the voltage difference of UPS main frame bus and the 2nd UPS battery is more than or equal to voltage difference threshold value；The most then enter step S113-13, otherwise enters step S113-15；Step S113-13, turns on the second auxiliary switch S2 so that it is in the conduction state, Open the second buffer circuit；Step S113-14, after continuing for some time, first turns on the second main switch SW2 so that it is be on State；Rear disconnection the second auxiliary switch S2 so that it is be off；Step S113-15, turns on the second main switch SW2 so that it is In the conduction state, the second auxiliary switch S2 remains off.

Embodiment 2

As shown in figure 12, the present invention provide a kind of uninterrupted power source battery sharing system include the first switching circuit, second Switching circuit, the 3rd switching circuit, the first voltage sampling circuit, the second voltage sampling circuit, tertiary voltage sample circuit, the 4th Voltage sampling circuit and control module；

Described first switching circuit includes the first main switch SW1 and first buffer circuit of parallel connection, described first buffering electricity It route the first auxiliary switch S1 and the first buffer resistance R1 in series；Described second switching circuit includes that the second master of parallel connection opens Closing SW2 and the second buffer circuit, described second buffer circuit is in series by the second auxiliary switch S2 and the second buffer resistance R2； The 3rd described switching circuit is made up of the 3rd main switch SW3；Described 3rd switching circuit also includes that one is connected in parallel on the described 3rd 3rd buffer circuit at main switch SW3 two ends, described 3rd buffer circuit is by the 3rd auxiliary switch S3 and the 3rd buffer resistance R3 In series.

The present invention additionally also provides for the control method of one (as shown in figure 12) uninterrupted power source battery sharing system, institute State control module monitoring the oneth UPS main frame and the 2nd UPS operational state of mainframe, for judging a UPS battery discharging loop The most normal with the 2nd UPS battery discharging loop, and according to a UPS main frame busbar voltage, the 2nd UPS main frame bus electricity Pressure, a UPS battery tension and the 2nd UPS battery tension control the first main switch SW1 and first of the first switching circuit Auxiliary switch S1, the second main switch SW2 and the second auxiliary switch S2 and the 3rd of the 3rd switching circuit the of the second switching circuit Main switch SW3 and the duty of the 3rd auxiliary switch S3, specifically comprise the following steps that

Step S21: as shown in Figure 4, in real time monitoring the oneth UPS battery and the running status of the 2nd UPS battery, and root According to battery condition monitored results, battery condition is masked as " 00 ", " 01 ", " 10 " or " 11 ", when a UPS battery is owed Pressure and the 2nd UPS storage battery under-voltage, then battery condition is masked as " 00 "；When a UPS storage battery under-voltage and the 2nd UPS electric power storage Pond is the most under-voltage, then battery condition is masked as " 01 ", when a UPS battery is the most under-voltage and the 2nd UPS storage battery under-voltage, then stores Battery status is masked as " 10 ", when a UPS battery is the most under-voltage and the 2nd UPS battery is the most under-voltage, then and battery condition mark Will is " 11 ", enters step S22；

Step S23: as it is shown in figure 5, monitoring the oneth UPS battery discharging loop and the 2nd UPS battery discharging are returned in real time Line state, and according to battery discharging loop state monitored results battery discharging loop state is masked as " 00 ", " 01 ", " 10 " or " 11 ", when a UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is abnormal, then battery is put Electricity loop state is masked as " 00 ", when a UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is normal, Then battery discharging loop state is masked as " 01 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging Loop is abnormal, then battery discharging loop state is masked as " 10 ", when a UPS battery discharging loop is normal and the 2nd UPS Battery discharging loop is normal, then battery discharging loop state is masked as " 11 ", enters step S24；

As shown in figure 13, in described step S28, a UPS battery is switched to the 2nd UPS main frame and uses, specifically real Existing step is:

Step S28-11, disconnects the first main switch SW1 so that it is be off, and the first auxiliary switch S1 remains open State；Step S28-12, turns on the 3rd auxiliary switch S3 so that it is in the conduction state, opens the 3rd buffer circuit；Step S28- 13, after continuing for some time, first conducting the 3rd main switch SW3 so that it is in the conduction state；Rear disconnection the 3rd auxiliary switch S3, It is at off-state；

As shown in figure 17, in described step S211, the 2nd UPS battery is switched to a UPS main frame and uses, specifically real Existing step is:

Step S211-11, disconnects the second main switch SW2 so that it is be off, and the second auxiliary switch S2 remains open State；Step S211-12, turns on the 3rd auxiliary switch S3 so that it is in the conduction state, opens the 3rd buffer circuit；Step S211-13, after continuing for some time, first conducting the 3rd main switch so that it is after in the conduction state, rear disconnection the 3rd auxiliary switch S3 so that it is be off.

As shown in figure 14, in described step S28, a UPS battery is switched to the 2nd UPS main frame and uses, specifically real Existing step is:

Step S28-21, disconnects the first main switch SW1 so that it is be off, and the first auxiliary switch S1 remains open State；Step S28-22, it is judged that whether the voltage difference of a UPS battery and the 2nd UPS battery is more than or equal to voltage difference Threshold value；The most then enter step S28-23, otherwise enter step S28-25；Step S28-23, turns on the 3rd auxiliary switch S3, It is at conducting state, opens the 3rd buffer circuit；Step S28-24, after continuing for some time, first conducting the 3rd main switch SW3 so that it is in the conduction state；Rear disconnection the 3rd auxiliary switch S3 so that it is be off；Step S28-25, conducting the Three main switch SW3 so that it is in the conduction state, the 3rd auxiliary switch S3 remains off；

As shown in figure 18, in described step S211, the 2nd UPS battery is switched to a UPS main frame and uses, specifically real Existing step is:

Step S211-21, disconnects the second main switch SW2 so that it is be off, and the second auxiliary switch S2 remains open State；Step S211-22, it is judged that whether the voltage difference of a UPS battery and the 2nd UPS battery is more than or equal to voltage difference Threshold value；The most then enter step S28-23, otherwise enter step S28-25；Step S211-23, turns on the 3rd auxiliary switch S3, It is at conducting state, opens the 3rd buffer circuit；Step S211-24, after continuing for some time, first conducting the 3rd main switch SW3 so that it is in the conduction state；Rear disconnection the 3rd auxiliary switch S3 so that it is be off；Step S211-25, conducting the Three main switch SW3 so that it is in the conduction state, the 3rd auxiliary switch S3 remains off.

As shown in figure 15, in described step S210, a UPS battery is connected shared switching to from the 2nd UPS main frame Oneth UPS main frame uses, and implementing step is:

Step S210-21, disconnects the 3rd main switch SW3 so that it is being off, the 3rd auxiliary switch S3 remains open State；Step S210-22, turns on the first auxiliary switch S1 so that it is in the conduction state, opens the first buffer circuit；Step S210-23, after continuing for some time, first turns on the first main switch so that it is in the conduction state；Rear disconnection the first auxiliary switch S1 so that it is be off；

As shown in figure 19, in described step S213, the 2nd UPS battery is connected shared switching to from a UPS main frame 2nd UPS main frame uses, and implementing step is:

Step S213-11, disconnects the 3rd main switch SW3 so that it is being off, the 3rd auxiliary switch S3 remains open State；Step S213-12, turns on the second auxiliary switch S2 so that it is in the conduction state, opens the second buffer circuit；Step S213-13, after continuing for some time, first turns on the second main switch SW2 so that it is in the conduction state；Rear disconnection the second auxiliary is opened Close S2 so that it is be off.

As shown in figure 16, a UPS battery is connected to share from the 2nd UPS main frame by described step S210 switch to the One UPS main frame uses, and implementing step is:

Step S210-31, disconnects the 3rd main switch SW3 so that it is being off, the 3rd auxiliary switch S3 remains open State；Step S210-32, it is judged that whether the voltage difference of a UPS main frame bus and a UPS battery is more than or equal to voltage Difference limen value；The most then enter step S210-33；Step S210-33, turns on the first auxiliary switch S1 so that it is be on shape State, opens the first buffer circuit；Step S210-34, after continuing for some time, first turns on the first main switch SW1 so that it is be in and lead Logical state；Rear disconnection the first auxiliary switch S1 so that it is be off；Step S210-35, turns on the first main switch SW1, makes It is in the conduction state, and the first auxiliary switch S1 remains off；

As shown in figure 20, in described step S213, the 2nd UPS battery is connected shared switching to from a UPS main frame 2nd UPS main frame uses, and implementing step is:

Step S213-21, disconnects the 3rd main switch SW3 so that it is be off, and the 3rd auxiliary switch S3 keeps disconnected Open；Step S213-22, it is judged that whether the voltage difference of the 2nd UPS main frame bus and the 2nd UPS battery is more than or equal to voltage difference Threshold value；The most then enter step S213-23；Step S213-23, turns on the second auxiliary switch S2 so that it is in the conduction state, Open the second buffer circuit；Step S213-24, after continuing for some time, first turns on the second main switch SW2 so that it is be on State；Rear disconnection the second auxiliary switch S2 so that it is be off；Step S213-25, turns on the second main switch SW2 so that it is In the conduction state, the second auxiliary switch S2 remains off.

Being controlled according to UPS main frame and UPS battery condition during specific works, system is operable with following several shape State, as shown in the table

The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, are answered It is understood by, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims

1. a uninterrupted power source battery sharing system, it is characterised in that: include the first switching circuit, the second switching circuit, Three switching circuits, the first voltage sampling circuit, the second voltage sampling circuit, tertiary voltage sample circuit, the 4th voltage sample electricity Road and control module；

Described control module connects that described first switching circuit controls end, described second switching circuit controls end, the described 3rd cuts Changing circuit and control end, a UPS host computer control end and the 2nd UPS host computer control end, described control module is also connected with described first Voltage sampling circuit output, described second voltage sampling circuit output, described tertiary voltage sample circuit output and institute State the 4th voltage sampling circuit output；

A described UPS main frame bus connects described first voltage sampling circuit input and described first switching circuit one end, The described first switching circuit other end connects described second voltage sampling circuit input, described 3rd switching circuit one end and the One UPS battery；

Described 2nd UPS main frame bus connects described tertiary voltage sample circuit input and described second switching circuit one end, Described second the switching circuit other end connect described 4th voltage sampling circuit input, the described 3rd switching circuit other end and 2nd UPS battery；

Described first switching circuit includes the first main switch and first buffer circuit of parallel connection, and described first buffer circuit is by first Auxiliary switch and the first buffer resistance are in series；Described second switching circuit includes the second main switch and second buffering of parallel connection Circuit, described second buffer circuit is in series by the second auxiliary switch and the second buffer resistance；The 3rd described switching circuit It is made up of the 3rd main switch.

Uninterrupted power source battery sharing system the most according to claim 1, it is characterised in that: described 3rd switching circuit is also Including the 3rd buffer circuit being connected in parallel on described 3rd main switch two ends, described 3rd buffer circuit by the 3rd auxiliary switch and 3rd buffer resistance is in series.

3. the control method of a uninterrupted power source battery sharing system as claimed in claim 1, it is characterised in that described control Module monitors the oneth UPS main frame processed and the 2nd UPS operational state of mainframe, for judging a UPS battery discharging loop and the Whether two UPS battery discharging loops normal, and according to a UPS main frame busbar voltage, the 2nd UPS main frame busbar voltage, the One UPS battery tension and the 2nd UPS battery tension control the first main switch of the first switching circuit and the first auxiliary switch, Second main switch of the second switching circuit and the duty of the 3rd main switch of the second auxiliary switch and the 3rd switching circuit, Specifically comprise the following steps that

Step S11: monitoring the oneth UPS battery and the running status of the 2nd UPS battery in real time, and run shape according to battery Battery condition is masked as " 00 ", " 01 ", " 10 " or " 11 " by state monitored results, as a UPS storage battery under-voltage and the 2nd UPS Storage battery under-voltage, then battery condition is masked as " 00 "；When a UPS storage battery under-voltage and the 2nd UPS battery are the most under-voltage, then Battery condition is masked as " 01 ", when a UPS battery is the most under-voltage and the 2nd UPS storage battery under-voltage, then and battery condition mark Will is " 10 ", when a UPS battery is the most under-voltage and the 2nd UPS battery is the most under-voltage, then battery condition is masked as " 11 ", enters Enter step S12；

Step S12: judge whether battery condition mark is " 00 ", if battery condition is masked as " 00 ", then terminates；Otherwise enter Enter step S13；

Step S13: monitoring the oneth UPS battery discharging loop and the 2nd UPS battery discharging loop state in real time, and according to storage Battery discharging loop state is masked as " 00 ", " 01 ", " 10 " or " 11 " by battery discharge loop state monitored results, when first UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is abnormal, then battery discharging loop state is masked as " 00 ", when a UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is normal, then battery discharging loop Status Flag is " 01 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop is abnormal, then electric power storage Tank discharge loop state is masked as " 10 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop just Often, then battery discharging loop state is masked as " 11 ", enters step S14；

Step S14: judge whether battery discharging loop state mark is " 00 ", if battery discharging loop state is masked as " 00 ", then terminate；Otherwise enter step S15；

Step S15: judge whether battery discharging loop state mark is " 11 ", if battery discharging loop state is masked as " 11 ", then terminate；Otherwise enter step S16；

Step S16: judge that battery condition mark is the most identical with battery discharging loop state mark, if identical, then terminates； Otherwise enter step S17；

Step S17: judge whether battery discharging loop state mark is " 10 ", if battery discharging loop state is masked as " 10 ", then enter step S111；Otherwise enter step S18；

Step S19: judge that a UPS battery discharging loop is the most abnormal, if a UPS battery discharging loop is abnormal, then Terminate, otherwise enter step S110；

Step S110, connects the shared UPS main frame that switches to by a UPS battery from the 2nd UPS main frame and uses, and tie Bundle；

Step S112: judge that the 2nd UPS battery discharging loop is the most abnormal, if the 2nd UPS battery discharging loop is abnormal, then Terminate, otherwise enter step S113；

Step S113, connects shared the 2nd UPS main frame that switches to by the 2nd UPS battery from a UPS main frame and uses, and tie Bundle；

Wherein, in step S18, a UPS battery being switched to the 2nd UPS main frame and uses, implementing step is: step S18-01, disconnects the first main switch so that it is be off, and the first auxiliary switch remains off；Step S18-02, leads Logical 3rd main switch so that it is in the conduction state；

Wherein, in step S111, the 2nd UPS battery being switched to a UPS main frame and uses, implementing step is: step S111-01, disconnects the second main switch so that it is be off, and the second auxiliary switch remains off；Step S111-02, Turn on the 3rd main switch so that it is in the conduction state.

The control method of uninterrupted power source battery sharing system the most according to claim 3, it is characterised in that

In described step S110, a UPS battery is connected the shared UPS main frame that switches to from the 2nd UPS main frame and uses, Implementing step is:

Step S110-01, disconnects the 3rd main switch so that it is be off；Step S110-02, turns on the first auxiliary switch, It is at conducting state, opens the first buffer circuit；Step S110-03, after continuing for some time, first conducting first is main opens Close so that it is in the conduction state；Rear disconnection the first auxiliary switch so that it is be off；

In described step S113, the 2nd UPS battery is connected shared the 2nd UPS main frame that switches to from a UPS main frame and uses, Implementing step is:

Step S113-01, disconnects the 3rd main switch so that it is be off；Step S113-02, turns on the second auxiliary switch, It is at conducting state, opens the second buffer circuit；Step S113-03, after continuing for some time, first conducting second is main opens Close so that it is in the conduction state；Rear disconnection the second auxiliary switch so that it is be off.

The control method of uninterrupted power source battery sharing system the most according to claim 3, it is characterised in that:

Step S110-11, disconnects the 3rd main switch so that it is be off；Step S110-12, it is judged that a UPS main frame is female Whether the voltage difference of line and a UPS battery is more than or equal to voltage difference threshold value；The most then enter step S110-13, otherwise Enter step S110-15；Step S110-13, turns on the first auxiliary switch so that it is in the conduction state, opens the first buffering electricity Road, enters step S110-14；Step S110-14, after continuing for some time, first turns on the first main switch so that it is be on shape State；Rear disconnection the first auxiliary switch so that it is be off, then terminate；Step S110-15, turns on the first main switch so that it is In the conduction state, the first auxiliary switch remains off；

Step S113-11, disconnects the 3rd main switch so that it is be off；Step S113-12, it is judged that the 2nd UPS main frame is female Whether the voltage difference of line and the 2nd UPS battery is more than or equal to voltage difference threshold value；The most then enter step S113-13, otherwise Enter step S113-15；Step S113-13, turns on the second auxiliary switch so that it is in the conduction state, opens the second buffering electricity Road；Step S113-14, after continuing for some time, first turns on the second main switch so that it is in the conduction state；Rear disconnection second is auxiliary Help switch so that it is be off, then terminate；Step S113-15, turns on the second main switch so that it is in the conduction state, the Two auxiliary switches remain off.

6. the control method of a uninterrupted power source battery sharing system as claimed in claim 2, it is characterised in that described control Module monitors the oneth UPS main frame processed and the 2nd UPS operational state of mainframe, for judging a UPS battery discharging loop and the Whether two UPS battery discharging loops normal, and according to a UPS main frame busbar voltage, the 2nd UPS main frame busbar voltage, the One UPS battery tension and the 2nd UPS battery tension control the first main switch of the first switching circuit and the first auxiliary switch, Second main switch of the second switching circuit and the second auxiliary switch and the 3rd main switch of the 3rd switching circuit and the 3rd assist The duty of switch, specifically comprises the following steps that

Step S21: monitoring the oneth UPS battery and the running status of the 2nd UPS battery in real time, and run shape according to battery Battery condition is masked as " 00 ", " 01 ", " 10 " or " 11 " by state monitored results, as a UPS storage battery under-voltage and the 2nd UPS Storage battery under-voltage, then battery condition is masked as " 00 "；When a UPS storage battery under-voltage and the 2nd UPS battery are the most under-voltage, then Battery condition is masked as " 01 ", when a UPS battery is the most under-voltage and the 2nd UPS storage battery under-voltage, then and battery condition mark Will is " 10 ", when a UPS battery is the most under-voltage and the 2nd UPS battery is the most under-voltage, then battery condition is masked as " 11 ", enters Enter step S22；

Step S22: judge whether battery condition mark is " 00 ", if battery condition is masked as " 00 ", then terminates；Otherwise enter Enter step S23；

Step S23: monitoring the oneth UPS battery discharging loop and the 2nd UPS battery discharging loop state in real time, and according to storage Battery discharging loop state is masked as " 00 ", " 01 ", " 10 " or " 11 " by battery discharge loop state monitored results, when first UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is abnormal, then battery discharging loop state is masked as " 00 ", when a UPS battery discharging loop is abnormal and the 2nd UPS battery discharging loop is normal, then battery discharging loop Status Flag is " 01 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop is abnormal, then electric power storage Tank discharge loop state is masked as " 10 ", when a UPS battery discharging loop is normal and the 2nd UPS battery discharging loop just Often, then battery discharging loop state is masked as " 11 ", enters step S24；

Step S24: judge whether battery discharging loop state mark is " 00 ", if battery discharging loop state is masked as " 00 ", then terminate；Otherwise enter step S25；

Step S25: judge whether battery discharging loop state mark is " 11 ", if battery discharging loop state is masked as " 11 ", then terminate；Otherwise enter step S26；

Step S26: judge that battery condition mark is the most identical with battery discharging loop state mark, if identical, then terminates； Otherwise enter step S27；

Step S27: judge whether battery discharging loop state mark is " 10 ", if battery discharging loop state is masked as " 10 ", then step S211；Otherwise enter step S28；

Step S29: judge that a UPS battery discharging loop is the most abnormal, if a UPS battery discharging loop is abnormal, then Terminate, otherwise enter step S210；

Step S210, connects the shared UPS main frame that switches to by a UPS battery from the 2nd UPS main frame and uses, and tie Bundle；

Step S212: judge that the 2nd UPS battery discharging loop is the most abnormal, if the 2nd UPS battery discharging loop is abnormal, then Terminate, otherwise enter step S213；

Step S213, connects shared the 2nd UPS main frame that switches to by the 2nd UPS battery from a UPS main frame and uses, and tie Bundle.

The control method of uninterrupted power source battery sharing system the most according to claim 6, it is characterised in that

In described step S28, a UPS battery being switched to the 2nd UPS main frame and uses, implementing step is:

Step S28-11, disconnects the first main switch so that it is be off, and the first auxiliary switch remains off；Step S28-12, turns on the 3rd auxiliary switch so that it is in the conduction state, opens the 3rd buffer circuit；Step S28-13, continues one section After time, first conducting the 3rd main switch so that it is in the conduction state；Rear disconnection the 3rd auxiliary switch so that it is be off；

Step S211-11, disconnects the second main switch so that it is be off, and the second auxiliary switch remains off；Step S211-12, turns on the 3rd auxiliary switch so that it is in the conduction state, opens the 3rd buffer circuit；Step S211-13, continues one After the section time, first conducting the 3rd main switch so that it is after in the conduction state, rear disconnection the 3rd auxiliary switch so that it is be in disconnection State.

Step S28-21, disconnects the first main switch so that it is be off, and the first auxiliary switch remains off；Step S28-22, it is judged that whether the voltage difference of a UPS battery and the 2nd UPS battery is more than or equal to voltage difference threshold value；If so, Then enter step S28-23, otherwise enter step S28-25；Step S28-23, turns on the 3rd auxiliary switch so that it is be on State, opens the 3rd buffer circuit；Step S28-24, after continuing for some time, first conducting the 3rd main switch so that it is be on State；Rear disconnection the 3rd auxiliary switch so that it is be off, then terminate；Step S28-25, turns on the 3rd main switch, makes It is in the conduction state, and the 3rd auxiliary switch remains off；

Step S211-21, disconnects the second main switch so that it is be off, and the second auxiliary switch remains off；Step S211-22, it is judged that whether the voltage difference of a UPS battery and the 2nd UPS battery is more than or equal to voltage difference threshold value；If It is then to enter step S211-23, otherwise enter step S211-25；Step S211-23, turns on the 3rd auxiliary switch so that it is place In conducting state, open the 3rd buffer circuit；Step S211-24, after continuing for some time, first conducting the 3rd main switch so that it is In the conduction state；Rear disconnection the 3rd auxiliary switch so that it is be off, then terminate；Step S211-25, turns on the 3rd Main switch so that it is in the conduction state, the 3rd auxiliary switch remains off.

In described step S210, a UPS battery is connected the shared UPS main frame that switches to from the 2nd UPS main frame and uses, Implementing step is:

Step S210-21, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains off；Step S210-22, turns on the first auxiliary switch so that it is in the conduction state, opens the first buffer circuit；Step S210-23, continues one After the section time, first turn on the first main switch so that it is in the conduction state；Rear disconnection the first auxiliary switch so that it is be in disconnection shape State；

In described step S213, the 2nd UPS battery is connected shared the 2nd UPS main frame that switches to from a UPS main frame and uses, Implementing step is:

Step S213-11, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains off；Step S213-12, turns on the second auxiliary switch so that it is in the conduction state, opens the second buffer circuit；Step S213-13, continues one After the section time, first turn on the second main switch so that it is in the conduction state；Rear disconnection the second auxiliary switch so that it is be in disconnection shape State.

Oneth UPS battery is connected from the 2nd UPS main frame to share by described step S210 and switches to a UPS main frame use, Implementing step is:

Step S210-31, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains off；Step S210-32, it is judged that whether the voltage difference of a UPS main frame bus and a UPS battery is more than or equal to voltage difference threshold value；If It is then to enter step S210-33, if otherwise entering step 210-35；Step S210-33, turns on the first auxiliary switch so that it is place In conducting state, open the first buffer circuit；Step S210-34, after continuing for some time, first turns on the first main switch so that it is In the conduction state；Rear disconnection the first auxiliary switch so that it is be off, then terminate；Step S210-35, turns on first Main switch so that it is in the conduction state, the first auxiliary switch remains off；

Step S213-21, disconnects the 3rd main switch so that it is being off, the 3rd auxiliary switch remains open；Step S213-22, it is judged that whether the voltage difference of the 2nd UPS main frame bus and the 2nd UPS battery is more than or equal to voltage difference threshold value；If It is then to enter step S213-23, if otherwise operating procedure S213-25；Step S213-23, turns on the second auxiliary switch so that it is In the conduction state, open the second buffer circuit；Step S213-24, after continuing for some time, first turns on the second main switch, makes It is in the conduction state；Rear disconnection the second auxiliary switch so that it is be off, then terminate；Step S213-25, conducting the Two main switches so that it is in the conduction state, the second auxiliary switch remains off.