TW513835B - Electric power supply method and information processing device of controlling power source - Google Patents

Abstract

There is provided an electric power supply method, which comprises the steps of: (1) using a first low voltage switch device to turn on a generator set and a first connection switch, and the peripheral circuit coupled to the first low voltage switch device; (1) using a second low voltage switch device to turn off the second low voltage switch device and the generator set, and a second transformer; (3) supplying electric power generated by the generator set via the first low voltage switch device to the peripheral circuit coupled the first low voltage switch device, and via the first low voltage switch device, the first connection switch and the second voltage switch to the peripheral circuit coupled the second low voltage switch device.

Description

513835 Case No. 90108144 V. Description of the invention (1) The present invention relates to an electric power supply method and an information processing device for controlling a power source, and particularly to an emergency electric power supply method capable of providing temporary power to specific equipment in the event of a power outage, and It can avoid the situation that the generator set crashes due to inrush current generated by too many transformers. Furthermore, when the factory is doing power equipment maintenance, it can supply power to a specific plant circuit and cut off only part of the plant power circuit, so that maintenance personnel can 'engage in power equipment when most production equipment is continuously powered on. Maintenance work. Pande's ^ Μ Guide and LCD display factory's "Emergency Back-up Generator Sets" have become indispensable and important equipment. Its main function is to be able to immediately when the power is ^ Carry out emergency power generation to supply the needs of important equipment to ensure that important factory equipment and production equipment can still destroy the clean room environment and the impact of Liang Yangyi ’s knowledge. Especially if Taiwan is flourishing nowadays, its dust-free production environment and process and other related machines; the demand for electricity speed resupply is more stringent, because delays in resumption of electricity at one time will often cause huge losses, and leisurely Depending on. In addition, some safety-related equipment, * uncontrollable, toxic gas discharge systems, etc., all have their power maintenance, and the current emergency power supply mode of the lighting system is beneficial and necessary. :: The machine will start immediately and generate power in parallel in the generator set: The used power network will restore power supply to the power-supply feeders one by one-to the whole plant The emergency power supply mode is to connect the emergency generator to the whole plant. For this reason, it is necessary to have extremely high elasticity for each feeder, jade, structure, and parallel, III Ι.ΙΓ -------: ------ can be operated in the 4th page 0632-6019TWFl. ptc 513835

In order to achieve a better case number 90108144 V. Description of the invention (2) Load dispatching according to actual demand (Dispatch generator set combination and efficiency. Figure 1 is a diagram showing the structure of a conventional power supply. When the power company circuit 11 normally supplies power In the case of the conventional power supply method, the first and second high-voltage switchgear (12A, 12B) and the first and second low-voltage switchgear (13A, 13B) are set to the on state, and the power The power provided by the company's circuit 11 takes 161 kV as an example. After the voltage is reduced to 22.8 KV, it will be supplied to the first and second high-voltage switching devices (12A, 12B) to supply power to the first high-voltage peripheral circuits respectively. 14A and the second high-voltage peripheral circuit 14B. Then, the power provided by the power company circuit 1 丨 will be connected to the first transformer 15A and the second transformer through the first high-voltage switching device 12A and the second high-voltage switching device 12B, respectively. 15B, and the first transformer 15A and the second transformer 15B will reduce the power provided by the power company circuit 11 from 22.8kV to a lower voltage, for example As low as 4.16kV, and then supply to the first low-voltage switching device 13a and the second low-voltage switching device 13B, respectively, and then supply power to the equipment of the first low-voltage peripheral circuit 16A and the second low-voltage peripheral circuit 16B, so that they can operate normally The pressure switch device m and the second high-voltage switch device m and the second low-voltage switch device 13B are additionally provided with a first 18, a first contact switch 18 and a second low-voltage device. The role of the low-voltage switchgear 13B is as a backup switch, for example, when one of the backup switches can be used to conduct electric current. In addition, when the power company's circuit needs the field factor, the power supply must be interrupted. "庑 味", district circuit maintenance or other -------- 2 '...' generator sets will start immediately

0632-6019TWFl.ptc 513835

= Emergency power supply for important machines and equipment to maintain the necessary operation of the power system 'The direction of power supply is exactly the same as the direction of power supply from the power company = 11 above, which is generally connected from the generator set Terminals are respectively connected to the corresponding first high-voltage switch device through the first low-voltage switch device, 3 A and the second low-voltage switch device 13B, and through the above-mentioned first transformer 15A and second transformer 15B, respectively, 2 A and the second high-voltage switch. The device 12B ′ supplies power to related peripheral circuits by forming a loop of power, which will not be described in detail here to simplify the description. However, in the case of emergency power supply to specific equipment by the generator, at the moment when the generator set is turned on, the transformer in the power network will start instantaneously, which will generate a huge instantaneous inrush current, and this inrush current usually exceeds the generator. The current flow that can withstand causes the generator set to crash. Furthermore, in the above-mentioned emergency power supply architecture, the unit parallel procedure and emergency power reverse transmission structure require technical personnel to dispatch and operate. There are many artificial uncertainties hidden in it, so it is easy to delay the restoration time of the entire power network.1 In addition, Because the installed capacity of a single generator is much smaller than the instantaneous load during emergency power supply, that is, when the entire plant is in need of emergency power supply, the instantaneous load when power is restored will exceed the capacity of the standby unit. If the power supply is set to halt, this will cause a series of halts between the generating units, making it impossible for the generating units to supply power in parallel immediately, which will result in no power being available, and the condition of the generating units needs to be restarted. As a result, the reliability of the emergency power supply system will be greatly reduced due to the instability of the generator set itself. In summary, the traditional method of emergency power supply has the following disadvantages: 1) Limited backup load capacity. At the beginning of the establishment of emergency power, the transformer t @ I f :, the flow easily affects the stability of generator operation. To improve emergency power supply

513835 皇 号 901_w V. Description of the invention (4) The reliability needs to be improved. In War Valley, but this will increase the cost of the equipment. 2 · The contact switch is positive t | 1 The voltage of the voltage transformer and the power network is = when both are in the conducting state 'so it becomes 砗, the state of the connection' when the transformer When it is switched on again, θ becomes a huge instantaneous inrush current. 3. From the generator voltage g SCADA (Supervise from the central processing unit, such as the following into the% 〇ntro1 and Data Acquisition) to press the heart, and then, it takes about 5 minutes, too long time to restart the power, it will cause the plant to be clean Degree of damage and damage to semi-finished products. ^ & Emergency power supply mode for power outages in the factory, factory personnel need to monitor the generator ’s operation at any time to prevent ulcerations ^ Φ ^ Brother ^ Dispatching related loads, their response and operating time for power restoration It can also cause delays due to proficiency. The present invention provides a power supply method and an information processing device for controlling a power source to solve the above-mentioned problems. When an emergency power supply is required by a generator in an electric power company, generators are not used directly to directly supply the power provided by the generator set to the power used in each power circuit of the entire plant. In the multiple power circuit A in the factory area, select one power circuit to supply generator power, and use the switch between each power circuit to supply power from the power supply to other power circuits, that is, only use a single feeder to supply power. And 2 $ to other power circuits, and then through the connection switch between the power circuits to achieve the purpose of supplying all the power to the entire plant. Therefore, in the process of three forces, not only avoiding excessive ^ voltage transformation in other power circuits before they are put into operation again, which reduces the impact of inrush current on the stability of generator operation and the impact of multiple transformers when generating power. Current causes ^

〇632-6019HVFi.ptc Page 7 513835 Amendment No. 90108144 V. Explanation of the invention (5) Group crash. In addition, in the process of emergency power supply and load dispatch management, the rules of experience of professionals can also be programmed, and an automatic judgment mechanism for feeder input in gCADA can be established in advance, and the feeder cut-off signal is fed back to SCADA when the generator is overloaded. To improve scheduling flexibility. In this way, not only the human misjudgment factor is reduced, the system response speed is improved, and the reliability of the emergency power supply system is improved. " In order to achieve the above-mentioned object, the present invention proposes a power supply method and an information processing device for controlling a power source, which is suitable for a power network having a plurality of loops. The power network of the present invention has a first high-voltage switch device 12A and a second high-voltage switch device. 12B, between the first high-voltage switching device 12A and the second high-voltage switching device 12B, there is a second contact switch 17 connected to the first high-voltage switching device 丨 2A and the first low-voltage switching device 12B, respectively. The first high-voltage switching device is coupled to the first transformer 15A, and then the first transformer 15A is coupled to the first low-voltage switching device 13A; the second high-voltage switching device is coupled to the second transformer 15B, and then the second transformer 15B Coupled to the second low-voltage switching device 1 3B. Among them, the first low-voltage switchgear 3A and the second low-voltage switchgear 1 3B have a first-low-voltage switch 3 and a low-voltage switch connected to the first-low-voltage switch 3A and the second low-voltage switch 13B. A generator set 19 is still connected lightly between the device UA and the second low-voltage switchgear 13B. In addition, there is a-= two-link 2 switch 17 between the first high-voltage switching device 12A and the second high-voltage switching device 12B. The first and second high-voltage switching devices and the first and second low-voltage switching devices are respectively coupled to 14A. , 14B, 16A, 16B. 1. The emergency power supply method of the present invention includes

513835

(1) Through the first contact switch 18, the generator set 9 and the first low voltage switch device 3 A and the peripheral circuit 16A coupled to the first low voltage switch device 13A and the second low voltage switch device 13B 16B is the path; (2) the second low-voltage switchgear is used to make the second low-voltage switchgear open circuit with the generator set 19 and the second transformer 15B; (3) the power generated by the generator set 19 is supplied, This enables the above-mentioned power to be supplied to the first low-voltage peripheral circuit 16A via the first low-voltage switch device 13A, and to be coupled to the second via the first low-voltage switch device 13A, the first contact switch 18, and the second low-voltage switch 13B. The second low-voltage peripheral circuit 16B of the low-voltage switchgear 13B; (4) The first high-voltage peripheral circuit 14A and the second contact switch 17 and the first -Transformer voltage H15AM path; Connect open (5) Make the peripheral circuit coupled to the second high voltage switch device open circuit by the second high voltage switch device; ( 6) The first high-voltage peripheral circuit and the second high-voltage peripheral circuit are connected through a switch to form a path; '°, (7) The first transformer provides power to the generator set, and the power of the first low-voltage switch device is passed. The voltage is boosted and supplied to the first Tongli switching device, so that the boosted power is supplied to the first high-voltage peripheral circuit 14A coupled to the first high-voltage switching device 12A, and the first high-voltage peripheral is connected through a contact switch. The circuit 14A and the second high-voltage switching device 14b f are connected in parallel to the high-voltage peripheral circuit 12B. Among them, according to the present invention,

0632-601 Qing l.ptc Page 9 513835 ___ Case No. 90108144 V. Description of the invention (7) The amendments to the first and second high-voltage switchgear 12A, 12B and the first and second low-voltage switchgear 13A, 13B The open-open procedure is preset in a central setting. Brief description of the drawings: In order to make the above-mentioned objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is exemplified below, and in conjunction with the accompanying drawings, a detailed description is provided as illustrated:

Figure 1 is a structural diagram of a conventional power network supply. FIG. 2 is an operation flowchart of the power network load dispatching according to the first L embodiment of the power network supply architecture shown in FIG. 1 according to the present invention. FIG. 3 is a first flowchart of the power network according to the embodiment of the present invention. Diagram of the power network supply architecture of the second embodiment. Figure 4 is a flowchart showing the operation of load scheduling according to the present invention. Power network

Explanation of symbols described in the third embodiment: Electric power company circuit 12A ~ first high voltage switching device 12β ~ second high voltage switching device WA ~ first low voltage switching device 13B ~ second low voltage switching device WA ~ first high voltage peripheral circuit 14B ~ Second high-voltage peripheral circuit 15A ~ first transformer

Case No. 90108144 V. Description of the invention < [8] 16A strict, first-low voltage peripheral 16B production ~ second low voltage peripheral 17 ~ second contact switch 18 ~ contact switch 20 ~ first-contact switch 19 ~ generator set 21 ~ Central processing device 22 ~ uninterruptible power device 23 ~ power failure detection element 30 ~ exhaust system 31 ~ heating system 32 ~ lighting system 42 > 45 transformer circuit first embodiment:

The first embodiment of the present invention is shown in Fig. 1 when the power company circuit interrupts the power supply and the protection network architecture. And the power generation is started in parallel and the power supply 4 is started, and the generator set 19 will immediately run. The power network load of one embodiment is shown in FIG. 2: it is the second power network in the plant area of the present invention; In this embodiment, the power circuit is independent of the second power circuit. The first power circuit includes the first power circuit 11 and the power generator 19 of the first high voltage switching device 12A, the first transformer 15A, and the first power circuit. Low-voltage switchgear 13A. The first power circuit can be coupled to the first high-voltage peripheral circuit 14A and the first low-voltage peripheral circuit 16A through the first high-voltage switching device 12A and the first low-voltage switching device 13A to supply the first high-voltage peripheral circuit 14A and the first On low voltage peripheral circuit 16A

0632-601 clear l.ptc p. 11 513835

Power required by the machine. The second power circuit includes a second high-voltage switching device 12B, a second transformer 15B, and a second low-voltage switching device 13B between the electric power company circuit u and the generator set 19. In addition, the second power circuit can be connected to the second high-voltage peripheral circuit 48 and the second low-voltage peripheral circuit 16B through the second high-voltage switching device 12B and the second low-voltage switching device 13B to supply power to the second high-voltage. Machines on the peripheral circuit 14B and the second low-voltage peripheral circuit 16B. Among them, the first power circuit and the second circuit circuit also have a first communication switch 18 and a second communication switch 17 for communication, and the high-voltage peripheral circuit and the low-voltage peripheral circuit may further include a communication switch ( (Not shown). The operation flow of the power network load dispatching according to the embodiment of the present invention is described as follows: (1) When the power of Taiwan Power is cut off, first set the first low voltage switch device 13A and the second low voltage switch device 13B to be in the ON state. By means of the first low-voltage switching device 1 3 A, the generator set 19 and the first communication switch 8 and the first low-voltage peripheral circuit 16A coupled to the first low-voltage switching device 13A become paths (S1). The first motor is closed for the first week (2). Then, the second low-voltage switch 13B is used to open the second low-voltage switch 13B and the generator set 19 and the second transformer 15B, and a second switch 18 is used to make the second A path (S2) is formed between the low-voltage switching device 13B and the second low-side circuit 16B. -(3) Next, as described above, at this time, the generator set 9 has started to run, and the 'generator set 19 starts generating power and provides power (S3). Due to the settings of the above-mentioned low-voltage switchgear 13A and the second low-voltage switchgear 3B, the power of the generator 19 can be supplied to the coupling via the first low-voltage switchgear 13A.

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The first low-voltage peripheral circuit UA connected to the first low-voltage switching device 13A is supplied with power to the second low-voltage peripheral circuit 16B via the first low-voltage switching device 13A, the first contact switch 18, and the second voltage switch 13B. (4) Next, it is set that the first high-voltage switching device 12A and the second high-voltage switching device 12B are turned on. The first high-voltage switching device 12A makes the first high-voltage peripheral circuit 14A, the second contact switch 17 and the first transformer 15A coupled to the first high-voltage switching device 12A to form a path (S4 (5). The high-voltage switching device 12β makes the second high-voltage peripheral circuit 14B and the second contact switch 17 form a path, and forms an open circuit with the second transformer 15B (S5). (6) Next, the first transformer 15A passes the generator set 19 through the first The power provided by the low-voltage switching device 13A is boosted and supplied to the first high-voltage switching device 12A (S6). Due to the settings of the first high-voltage switching device 12A and the second voice pressure switching device 12B, the boosted power is supplied. To the first-high-voltage peripheral circuit 14A and the second high-voltage peripheral circuit 14β. The power supply of the entire plant is completed (S7). The power network architecture shown in Figure 1 only shows a few of them. Necessary electrical devices, however, the actual power network is quite large and complicated, such as the first high-voltage switch 12A, the second high-voltage switch 12B, the first low-voltage switch 3a, Second low pressure For 3β, etc., the amount of f is determined according to the actual plant circuit, and the voltage type is the same, depending on the actual situation. Similarly, the first transformer voltage described in the figure,! §15A, the second The actual number of transformers 5β, etc. is much more than this, so in this embodiment, although only the second transformer 15B is prevented from being put into the circuit network.

0632-6019TWl.ptc Page 13 513835 _ — 銮 号 90108144_ _ year month day _ excellent soil __ V. Description of the invention (11) while reducing the impact of inrush current on the generator set 19, however, in practice, this implementation The example also avoids the startup of other power circuit transformers, so the impact of inrush current on the generator set 19 is greatly reduced. Furthermore, the open-open state setting information of the first high-voltage switching device 12A, the second high-voltage switching device 12B, the first low-voltage switching device 13A, and the second low-voltage switching device 13β is preset in a central processing device, such as SCADA. . Therefore, SCADA will automatically determine the feeder group for power supply according to the preset procedure according to the number of parallel units of the generator set, that is, set the state of the above switches, and according to the power status of each feeder supplied by the generator, depending on the power supply capacity Unload control and increase the number of feeders to supply power. In this way, not only the human misjudgment factors are reduced, but also the system response speed is increased, and the reliability of the emergency power supply system is improved. First Embodiment As shown in Fig. 3, the present invention recognizes the function of a specific element, which is hereinafter described as "I n \ ^ ^ ^ ^ ○".

0632-6019TWFl.ptc Page 14 ^ The first high-voltage switching device 12A and the second high-voltage switching device 12B are respectively disposed on the first power circuit and the above-mentioned second power circuit, and are used to control the transformer located in the first power circuit ( 151A ~ 154A) and the transformer (151B ~ 154B) located on the second circuit. The liaison switch 20 includes a first liaison switch 18 and a second liaison switch 17 to control the first power back to two: 7 the coupling state between the power circuits. It is worth noting that the amount of contact opening is based on actual needs. It is determined that the difference between the traditional technology is that when the power is interrupted, the control switch of the transformer of the present invention is in an open state (0FF) in a normal state, and generates power in parallel with the generator set and controls the transformer by a central processing device. Conducting sequence, 513835 _Case No. 90108144__ Year, Month, and Day Amendment _ V. Description of the invention (12) The transformer can be sequentially put into the power circuit to form the electrical connection of the power circuit to achieve the purpose of power supply balance. The low-voltage switchgear 1 3 A (including a first power circuit switch) and the low-voltage switchgear 1 3B (including a second power circuit switch) are used to control the first power circuit, the second power circuit, and the generator set 9 Of the coupled state. The central processing device 21 is used to control the conducting states of the high-voltage switchgear 12 and 12B, the contact switch 20, the low-voltage switchgear 3A, and the low-voltage switchgear 3B. The uninterruptible power supply (UPS) 22 includes a power failure detection element 23 to provide power to the central processing unit (SCADA) 21 during power failure. Among them, the power failure detection element 23 is used to detect whether the power company's circuit is normally supplied with power. When the power failure occurs, the power failure detection element 23 will detect the power failure and send a power failure signal to the central processing device 21. The following will describe the operation procedure of resuming power according to the present supervision. First, the power outage measurement element 23; sends the Tsai electricity Λ number to the central processing device 21. Next, the central processing unit breaks the circuit and signals No. to Λ—high-voltage switching device 12A and second high-voltage switching device 12B, and the first power circuit switch m and second power 13B, so that the components inside the entire circuit network are temporarily Separate from: stomach. Among them, the equipment indicated by reference number 30 is an exhaust system eight ... flavor road meter heating system, and reference number 32 represents the lighting system, which is only necessary for the f31 generation. The equipment 'that is, the power supply area must be given priority when power is restored. The steps for starting the generator set 19 and supplying electric power will be described. Here, the example on the right side of FIG. The central processing unit 21 first sends out the power circuit power to ^ off so that the first-power circuit switch 13 ^^ to the-power 513835 --m ^ mosrn _ Feng H day amendment V. Description of the invention (13) " & quot — The power is connected, then, the generator set 19 is started, the generator set 19 starts to be connected in parallel, electricity is started, and power is supplied to the low-voltage peripheral circuit 16A, and the voltage is increased from 4.16KV to 22.8KV by the transformer 151A. The processing device 21 sequentially sends a turn signal to the first two-voltage switching device 12A, so that power is sequentially supplied to the transformer (151A ~ 154A). The reason is to avoid the huge instantaneous shock to the electric current IL caused by the simultaneous startup of the transformers, which will cause the generator set 19 to crash. Therefore, the time interval between the start of each transformer can be controlled by the central processing unit 21 to make the instantaneous impulse current smaller than the reserve capacity value that the generator set 19 can accept. Next, the central processing device 21 sends another path instruction to the contact switch 20, and supplies the power of the second power circuit according to the above-mentioned process, so that specific instruments throughout the plant area can use the power supplied by the generator set 19, For example, safety equipment such as the exhaust system 30, the heating system 31, and the lighting system 32. In this way, all transformers can be prevented from being invested at the same time, reducing the total inrush current, reducing the probability of generator set crashes, and increasing the guilty of the power system, without the need to purchase more expensive generators to withstand Higher inrush current can save costs. First and second switchgear with multiple pressure switches and second and second

In other words, the present invention is a power supply method applicable to a power network of a loop, the power network having first and second high devices, a first transformer coupled to the first and second high voltage switching devices, And respectively connected to the first and second transformer first and second low-voltage switch devices, wherein a generator set and a first contact switch are provided between the first and second: low-voltage devices, and The second contact switch, and the above-mentioned 513835

The local voltage switchgear and the first and second low-voltage switchgears are respectively coupled to corresponding peripheral circuits. The above-mentioned emergency power supply method includes the following steps: (1) The first low-voltage switchgear makes the generator set and the above-mentioned The first contact switch and a peripheral circuit coupled to the first low-voltage switch device become paths; (2) the second low-voltage switch device is used to make the second low-voltage switch device open circuit with the generator set and the second transformer; And a, (3) supply the power generated by the generator set, so that the power: to the first low-voltage switch device is supplied to the peripheral circuit connected to the first low-voltage, and via the first-low-voltage switch The device, one #two two, a switch and a second voltage switch are supplied to a peripheral circuit coupled to the second low voltage switch device. In addition, the present invention is a type of information processing system 2 for controlling power supply. The power unit has a first power circuit and a second power circuit. A generator set, the generator set is different from the first power ^ Power circuit ㈣'The above-mentioned first-power circuit is connected in parallel with a plurality of upper and lower, the first power circuit is connected in parallel with a plurality of second transformers, the power return circuit and the second power circuit form a closed power circuit 2 respectively, and the above control The information processing device of the power supply includes: set: another: high-voltage switchgear and a second high-voltage switchgear are equipped with another] to control the operation of the first transformer and the second transformer: to control the first power The circuit is electrically connected and disconnected with the second above-mentioned second connection, wherein the above-mentioned contact switch is in a disconnected state in the state of being suspended; 513 513835 ^ ES_9〇l〇8144 V. Description of the invention (15) M Correct the electrical connection and disconnection of the above-mentioned motor unit; the above-mentioned force circuit is opened to control the second power circuit and the fan = motor unit The electrical connection and the electrical connection are not connected. Off, on: the f management device is used to control the control of the above-mentioned transformer-Li ::: switch, the above-mentioned power circuit switch, and the above-mentioned second source; The electrical device 'is used to provide the central processing device with electricity and thunder and lightning detection components' to detect a power outage, and sends a power outage signal to the above central processing device during a power outage; of which (1) the above power outage detection during a power outage The measuring device is sent to the above-mentioned central processing device; the worker is wronged (2) The above-mentioned central processing device sends an open circuit signal to the previous ancient switching device device and the second high-voltage switching device device, the intermediate force circuit switch and the second power Loop switch; (3) The central processing unit sends out a first path and a power loop switch. · 7th above the main (4) Start the generator set to start the generator set in parallel. (5) The central processing unit sends the closed circuit in order. Letter 'high-voltage switchgear; — the above-mentioned central processing unit sends a second path command to the upper switch.唧 Third embodiment t μ Specific obstacles

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When performing maintenance of a power system in a district, the method described in the embodiment of the present invention must be interrupted for a specific plant area, and the power of the specific plant area can be interrupted according to the system maintainer ^. The first implementation is as follows: ^ ^ ^ ^ ^ ^ The first brother κ has the same implementation example. In this embodiment, the second network of the plant is divided into two power circuits. The first power circuit is the power circuit 11 and power generation. The first high-voltage switchgear 12A, the first transformer 15A, the first low-voltage switchgear 13α between the unit 19, and the first same-voltage peripheral circuits connected to the first high-voltage switchgear 12A and the first low-voltage switchgear UA. 14A and the first low-voltage peripheral circuit 16A. The second power circuit is the second high-voltage switching device 12B, the second transformer 15B, the second low-voltage switching device ΐ3β between the power company circuit 11 and the generator set 19, and the second high-voltage switching device 12B and the second low-voltage switch respectively. The device ΐ3β is coupled to the second high-voltage peripheral circuit 14B and the second low-voltage peripheral circuit 16B. Referring to FIG. 4, FIG. 4 is a flowchart showing an operation of power network load scheduling according to the third embodiment of the present invention. Take the maintenance of the first power circuit as an example. During the maintenance process, the power system will continuously supply power to the second power circuit. First, "the on-state of the first high-voltage switching device 12A is set (S21)", and the first high-voltage switching device 12a makes the first high-voltage switching device 12a to be disconnected from the electric power company circuit 11 and the second contact switch i7. Next, the conducting state (S22) of the second low-voltage switching device 13B is set, and the second low-voltage switching device 13B causes the second low-voltage switching device 13B and the first contact switch 18 to be turned off. Next, the electric power (S2 3) 'generated by the electric power company's circuit 11 is provided to supply it to the second high-voltage switching device 12B of the second power circuit, and the mxun power can be supplied to the second high-voltage via the second high-voltage switching device 12B. V. Description of the invention (17) The peripheral circuit 14B is pressed. Finally, the second transformer 15B steps down the power (S24) to reduce the voltage to a voltage available for the second low-voltage peripheral circuit 16β, and the reduced power passes through the second low-voltage switching device. Completed the low power of the second power circuit = the example shown in Figure 3 as an example. If the mouthpiece device 21 is to install the first high-voltage switch in the first power circuit: maintain each of the first power circuit in a state; The electrician was able to say in other words, 'The present invention is an electric first-power circuit and a second electric power return ... Electricity u: Connected to the maintenance device's first-higher switching device; pressure: off the device' and the upper device The first low-voltage switch is connected, and the above-mentioned first transformer switching device and the first low-voltage switching device are coupled to the second high-voltage circuit and the first low-voltage peripheral circuit. The second high-voltage switch device ^ the second high-voltage switch device is connected to the second low voltage of the second transformer == the first; the voltage is connected to the two high-voltage switch devices and the second low-voltage switch device; A second low-voltage peripheral circuit connected to a second high-voltage cycle The first and second closing means mi - each having a second contact switching means switching between the low and • switching the switch means opposing force ::: Qian supply method comprising the steps of: Le 'switching network, the electrical 513835

Η Correction 0) The first high-voltage switch device is used to make the first high-voltage switch device and the electric power company circuit and the second contact switch form a sweat-breaking circuit, and Guangu uses the second low-voltage switch device to make the second low-voltage circuit. The switch set forms an open circuit with the first contact switch; and (3) supplies the power generated by the electric power company's circuit to the second K-back! The second high-voltage switch device s, so that the upper power # to be supplied to the second high-voltage peripheral power plant area via -up = the second high-voltage switch device:… off, ^ B Ming disclosed as above in a preferred embodiment, but It is not intended to target the scope of the present invention. Cup 4 such as f, Liu Yafei are used to limit the spirit and scope, and the "t: item artist, without departing from the scope of the present invention ::: ;: = Movement and retouching 'Therefore, what is defined in the patent scope of the present invention at the turn of the present invention shall prevail.

Claims (1)

513835 6. Scope of patent application 丨. A power supply method applicable to a power network having a plurality of circuits ^ The above power network has first and second high-voltage switchgear, and first and second branches connected to the first and second high-voltage switchgear The second transformer and the second transformer are coupled to the first and second transformers of the first and second low-voltage devices, wherein the first and second low-voltage switchgears have a-^ group and a-connection. The switch 'and the first and second high-voltage switchgears have a first: contact switch' and the above-mentioned first and second high-voltage switchgear = and the first and second low-voltage switchgear are lightly connected to the corresponding peripheral circuits respectively 'as described above for the emergency power supply The method includes the following steps: (j) borrowing the first low-voltage switch device to make the above-mentioned generator set and Lei Er # a contact switch and a peripheral path coupled to the first low-voltage switch device become a path; The low-voltage switching device causes the second low-voltage open-circuit device to open circuit with the generator set and the second transformer; and a. Supplies the power generated by the generator set, It can be obtained that the above-mentioned electric power = is provided by the first low-voltage switching device to a peripheral circuit coupled to the first low-one switching device, and is supplied to the surface connection through the first low-voltage switching device, a contact switch and a second voltage switch. Peripheral circuits in the second low-voltage switching device. 2. The power supply method as described in item 1 of the scope of patent application, further comprising the following steps: the peripheral circuit which is light-connected to the first high-voltage switch by the first high-voltage switch device, the second contact switch and the above The first transformer fasting path; The second high-voltage switchgear described makes the same as the second high-voltage switch The peripheral circuit lightly connected to the device and the second contact switch form a back-up second transformer to form an open circuit; and the first transformer boosts the power of the first low-voltage switch device provided by the generator set and supplies it to The above-mentioned first-stage switchgear enables the boosted power to be supplied to the peripheral circuits coupled to the above-mentioned first-stage = voltage at ga. R ^ -voltage switchgear and to the above-mentioned second high-voltage switch τ * φ α / The weekly two-step 3. The power supply method as described in item 2 of the scope of the patent application, wherein the above-mentioned first and second high-voltage switchgear and first and second low-voltage switch dream-open-open information are preset at Central Processing Unit. 4. A power supply method suitable for a power network having a plurality of loops. The above power network has first and second high-voltage switching devices, and first and second transformers lightly connected to the first and second high-voltage switching devices, respectively. And first and second low-voltage switching devices respectively coupled to the first and second transformers, wherein a generator set and a first contact switch are provided between the first and second low-voltage switching devices, and the first and second There is a second communication switch between the two high-voltage switching devices, and the first and second high-voltage switching devices and the first and second low-voltage switching devices are respectively coupled to corresponding peripheral circuits. The above-mentioned emergency power supply method includes the following steps: The first low-voltage switch device makes the generator set and the first contact switch and the periphery coupled to the first low-voltage switch device become paths; the second low-voltage switch device makes the second low-voltage switch device and the power generation The unit and the above-mentioned second transformer are disconnected; 513835 Case No. 90108144 6. The scope of the patent application is supplied through the above-mentioned first low-voltage switchgear to the peripheral circuits connected to the μ, +, and loose-off devices, and via the above-mentioned i-th low-voltage switch-on & low-voltage switchgear, the first contact The switch and the second voltage switch are supplied to the peripheral circuit coupled to the switching device; the first low I makes the peripheral circuit connected to the first high voltage switching device surface and the second contact switch through the first high voltage switching device. Forming a path with the above-mentioned transformer; forming a path between the peripheral circuit lightly connected to the second high-voltage switching device and the second contact switch by the second high-voltage switching device, and forming an open circuit with the second transformer; and 、, The first transformer boosts the power provided by the generator set and passes the first low-voltage switching device, and supplies the power to the first high-voltage switching device, so that the boosted power is supplied to the first high-voltage switching device. The light-connected peripheral circuit and the edge circuit coupled to the second high-voltage switching device. 5. The power supply method according to item 4 of the scope of patent application, wherein the open-open information of the first and second high-voltage switchgear and the first and second low-voltage switchgear are preset in the central processing device. x 6 · —A power supply method suitable for a power network with a plurality of loops. 'The power network has first and second high-voltage switchgear, and first and second high-voltage switchgear respectively connected to the first and second high-voltage switchgear. A transformer, and first and second low-voltage switching devices respectively coupled to the first and second transformers, wherein a generator set is provided between the first and second low-voltage switching devices, and the first and second high-voltage switching devices are There is a first 1 network switch 'and the above and second high voltage switching devices and the first and Page 24 Ϊ :: The voltage switching device is respectively coupled to the corresponding peripheral circuit. The power supply method includes the following steps. The above emergency group and the above-mentioned side circuit form the above-mentioned generator through the first low-voltage switching device: transformer and surface connection. The above-mentioned low-voltage switchgear is a path; the first eleventh = low-voltage switch-off device makes the second low-voltage switchgear and the second transformer into an open state; Supply the electric power generated by the generator set, so that the electric power can be supplied to the peripheral circuit coupled to the first low-voltage switch device by the first low-voltage switch device, and supplied to the second low-voltage switch device through the second low-voltage switch device; Peripheral circuits of the low-voltage switchgear; the peripheral circuits coupled to the first high-voltage switchgear, the first contact switch, and the first dust filter are formed by the first high-voltage switchgear; and by the second high-voltage The switching device forms a path between the peripheral circuit surface-connected to the second high-voltage switching device and the first contact switch, and forms an open circuit with the second transformer; and The first transformer boosts the power provided by the generator set and passes the first low-voltage switching device, and supplies the power to the first high-voltage switching device, so that the boosted power is supplied to the first high-voltage switching device. A coupled peripheral circuit and a peripheral circuit coupled to the second high-voltage switching device. 7. The power supply method according to item 6 of the scope of patent application, wherein the open-open information of the first and second high-voltage switchgear and the first and second low-voltage switchgear is preset in the central processing device. 0632-6019TWl.ptc Page 25 Amendment VI. Patent Application Scope 8 · A power supplier + a second power circuit and the power eight are used for the first power circuit and a power circuit including the first high-pass circuit coupling Connected to the power network, the first transformer coupled to the first device: the device, and the first high-voltage switch-voltage switch device, and the first-low-voltage switch device connected to the second transformer-connected to the low-voltage switch device—-: ϋ f A high-voltage switchgear and a first low-voltage circuit, the above-mentioned second power circuit side circuit and the first-low-voltage peripheral electric two-high-voltage switchgear are coupled to a high-voltage switchgear, which is installed with the second low-voltage switch connected above. A voltage transformer is coupled to the second transformer and the second low-pass device. The above-mentioned ζ high-a switch is equipped with a peripheral circuit, and the middle and upper circuits have a second contact switch and a low-voltage switch. The devices respectively include the following steps: switch, the above-mentioned power supply method includes the above-mentioned eighth-high-voltage switch device to make the first high waste circuit open; κ ′ 力 α Division circuit and the second The network switch forms a disconnection 2) The second low-voltage switch device is used to make the second low-voltage switch device and the first contact switch to be disconnected; and (3) the electric power generated by the power company circuit is supplied to the second The power is returned to the second high-voltage switching device, so that the power can be supplied to the second high-voltage peripheral circuit through the second high-voltage switching device, and the power is supplied through the second low-voltage switching device after the voltage is reduced through the second transformer. To the above-mentioned second low-voltage peripheral circuit. First, 9th, a kind of control power source I surface 0632-6019TWl.ptc page 26 513835 month said shame case number 90108144 Sixth, the scope of the patent application power circuit and a second power circuit of the above-mentioned generators, the group and The first power circuit generator set is connected with the first power circuit in parallel with a plurality of second power circuit strings in parallel with a plurality of second voltage transformers in parallel, and the second and second power circuits form a closed electric power respectively. The information processing device of the seventh electric power circuit source includes a road u. The above control circuit is a first high-voltage switchgear device and an ancient home, which are respectively used to control the above-mentioned transition number:-; the switching device is installed-a contact switch, Used for control operations; electrical connection and disconnection between power circuits. Second, it is in an open state under normal conditions; and the above contact opens a first power circuit switch to control the electrical connection of the generator set. And electrical disconnection ^ first-the power circuit and a second power circuit switch for controlling the electrical connection of the second and the above-mentioned generator set And electrical disconnection. 〃 A central processing unit for controlling the above-mentioned first variable pressure writing of the above-mentioned contact switch and the above-mentioned first power circuit switch; ^: power circuit switch; and & 乐 一 、、 一 不The power failure device provides the above-mentioned central processing device power $ during a power failure, and has a power failure detection element for detecting a power failure. When a power failure occurs, the power failure detection element transmits a power failure signal to the above-mentioned central processing device; wherein, (( 1) In the event of a power failure, the power failure detection element sends the power failure signal to the central processing device; (2) The central processing device sends a disconnection signal to the first high voltage 第一 page 27 0632-6019TWFl.ptc M3835 __ 90108144 Vehicle month 6, apply for a patent ^ a home device and a second high-voltage switch device device as well as the above-mentioned first power circuit switch and the above-mentioned second power circuit switch; One-pass power circuit switch; (4) starts the generator set, so that the above-mentioned generator stages begin to generate electricity in parallel, · high voltage fn /; Means sequentially sends a signal to the first closed - back pressure switching means; ^ envelope open). The above-mentioned central processing device sends a second path instruction to the above-mentioned information processing device of the right and t0./ emergency power control power supply, which is applicable to the power system of the middle: loop circuit and a second power circuit. The power circuit is connected with a plurality of first transformers in parallel, and the second and the second transformers mentioned above form a closed power circuit from the above-mentioned Hi-power circuit and the above-mentioned emergency power supply system. The information processing device of the power supply includes: A high-voltage switchgear device and a second high-position device are used to control the first transformer and the second transformer respectively; a contact switch is used to control the upper ring. The electrical connection and disconnection between the power ports are in a disconnected state under normal conditions; ', ,,, and each open the first power circuit switch for electrical connection with the above-mentioned generators. And the electrical 'disconnected circuit and a central processing device; and a: network switch' is used to control the above-mentioned force-;--^ 1, which is not the above-mentioned contact switch, page 28, 063 2.6019TWFl.ptc 513835 _Case No. 90108144_ Modification of the month of the year_ 6. The scope of the patent application is in an open circuit under normal conditions; (1) When repairing the first transformer, the central processing device sends a disconnection signal to the first High-voltage switchgear and first power circuit switch; (2) The central processing unit sends a disconnection command to the contact switch. 0 0632-6019TWFl.ptc Page 29