CN2600968Y - UPS uninterruption power supply device - Google Patents
UPS uninterruption power supply device Download PDFInfo
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- CN2600968Y CN2600968Y CN 03223064 CN03223064U CN2600968Y CN 2600968 Y CN2600968 Y CN 2600968Y CN 03223064 CN03223064 CN 03223064 CN 03223064 U CN03223064 U CN 03223064U CN 2600968 Y CN2600968 Y CN 2600968Y
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- rectifier
- power factor
- power
- ups
- factor correction
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Abstract
The utility model relates to the technical field of power device, which is especially relates to a UPS device with power factor correction. The input end of a rectifier is connected with commercial power, and the power of inverter is supplied by the rectifier; a battery is connected with the output end of rectifier; the power factor of rectifier adopts a power factor correction module set with IGBT switch, which is connected with a silicon controlled rectifier bridge; the rectifier includes a working pattern with floating charge current limiting and equal charge current limiting. An IGBT switch makes instant compensation to harmonic current of the silicon controlled rectifier bridge through matching instant power factor feedback circuit, thus the input current of rectifier is a sine wave and is the same phase with commercial power, reaching over 0.95 of input power factor; meanwhile, even the power factor correction IGBT has failure, the silicon controlled rectifier bridge can still supply power normally through isolating the power factor correction module by corresponding protective tube and UPS can operate normally.
Description
Technical field:
The utility model relates to the supply unit technical field, refers in particular to a kind of subsidiary meritorious UPS uninterrupted power supply(ups) because of proofreading and correct.
Background technology:
High frequency chain on line type UPS uninterrupted power supply(ups) has been widely used in various important power supply occasions at present.Its load is generally computer equipment, and computer equipment is a rectified load, it is bigger to the harmful effect that power supply unit causes than inductive loads such as motor: as the start impulse current is 7～10 times of steady-state current, the stable state peak current is 2～3 times of effective current, power factor is lower, is about 0.6～0.7 (single-phase) or 0.7～0.8 (three-phase).Simultaneously the total harmonic distortion degree of current harmonics feedback electrical network is about 60% (single-phase) or 35% (three-phase), so performances such as the band of UPS carries, shock resistance and anti-harmonic wave all will have enough nargin.The method that existing UPS improves input characteristics mainly contains following several: as shown in Figure 1, first kind be input filter, and promptly the input at UPS adds passive-type L-C filter in addition, in order to improve input work because of and limit the harmonic current composition.But because technical limitations, power factor can only bring up to 0.85～0.90, and the harmonic current composition also is difficult to be improved to and is lower than 10%, and can produce adverse consequences, as UPS during in low load (below 30%), the UPS input current is very big, is about above electric current semi-load of UPS, and the harmonic current of while electrical network also enters UPS easily and causes that serial or parallel connection resonance causes accident.As shown in Figure 2, second kind for adopting the 12 pulsating wave rectifier, and it is controlled six pulse wave rectifiers/charger by polygonal phase-shifting transformer and two full-bridges and forms, and the while, each rectifier had anti-harmonic wave inductance and balance inductance, make current feedback arrive the amount of electrical network, can reach the requirement of electrical network.But the input work that this kind mode still can not improve UPS is because of to 1.0, and the volume and weight of UPS heightens, and control circuit is comparatively complicated.As shown in Figure 3, the third adopts initiatively power factor correction function (Active-PFC), initiatively the power factor correction function technology is to adopt single merit to make feedback in time because of controller, cooperate the active power device that civil power is done high frequency and cut ripple, can make input work because of reaching 0.99 at an easy rate, and obtain sinusoidal wave input current.But in the at present used active power factor correction function technology between its power factor correction function module and the electric bridge for being connected in series, this kind active power device will flow through the full-load current of UPS, add the loss of power device HF switch, make this mode that following shortcoming be arranged: 1, owing to the restriction of switching mode power device, the power of power factor correction function device can't be too big; 2, adopt tandem type, power lower (below 95%), and power consumption is bigger; 3, because of the PFC electric bridge flows through full-load power, wearing out of power device is bigger, and life-span and reliability are relatively poor; 4, if PFC electric bridge fault, complete machine fault and can't operating then.
Summary of the invention:
The purpose of this utility model be to provide a kind of reach higher input work because of and the reliability height, even power factor correction function device fault, complete machine still can be powered normally, simultaneously the uninterrupted power supply(ups) that prolongs greatly useful life.
The utility model is achieved by the following technical solution: the input of rectifier is electrically connected with the city, and inverter is by rectifier power supply, battery pack is mounted on the output of rectifier, the power factor correction function device of described rectifier adopts the additional power factor correction function module that the IGBT switch is arranged, between itself and the thyristor bridge for being connected in parallel; Described rectifier includes the floating charge current limliting and all fills the mode of operation of current limliting.
The power factor correction function device of the utility model adopts the additional power factor correction function module that the IGBT switch is arranged, between itself and the thyristor bridge for being connected in parallel, the IGBT switch cooperates instant merit because of feedback circuit, the harmonic current of thyristor bridge is done instant compensation, make rectifier input current for sinusoidal wave and and the civil power homophase, reach input power factor more than 0.95, even while power factor correction function IGBT fault, can isolate the power factor correction function module by corresponding protective tube, make that thyristor bridge still can normal power supply, guarantee that UPS normally uses.
Description of drawings:
Accompanying drawing 1 is the existing schematic diagram that adopts the UPS of passive-type L-C filter;
Accompanying drawing 2 is the existing schematic diagram that adopts the UPS of 12 pulsating wave rectifier;
Accompanying drawing 3 is the existing initiatively schematic diagram of the UPS of power factor correction function device that adopts;
Accompanying drawing 4 is the functional-block diagram of the utility model;
Accompanying drawing 5 is the circuit connection diagram of the utility model;
Accompanying drawing 6 is the utility model test philosophy figure.
Embodiment:
See accompanying drawing 4,5, the utility model includes rectifier 1, inverter 2 and battery pack 3, the input of rectifier 1 is electrically connected with the city, and civil power exchanged be converted to direct current, and inverter 2 is converted to direct current interchange after being powered by rectifier 1 again, powering load, battery pack 3 is mounted on the output of rectifier 1.Described rectifier 1 adopts the additional power factor correction function module that the IGBT switch is arranged, between power factor correction function device 11 and the thyristor bridge 12 for being connected in parallel; While rectifier 1 has the floating charge current limliting and reaches mode of operations such as all filling current limliting, applicable to the battery pack 3 of coupling any kind.
When connecting civil power, civil power input rectifier 1 flow through simultaneously power factor correction function device 11 and thyristor bridge 12, because the power factor correction function module is to be parallel to thyristor bridge 12, the IGBT switch cooperates instant merit because of feedback circuit, the harmonic current of thyristor bridge 12 is done instant compensation, make rectifier 1 input current for sinusoidal wave and and the civil power homophase, reach input power factor more than 0.95.Even simultaneously power factor correction function IGBT fault can be isolated the power factor correction function module by corresponding protective tube, make that thyristor bridge 12 still can normal power supply, guarantee that UPS normally uses.
Rectifier 1 exchanges civil power and is converted to direct current, and the positive pole of battery pack 3 is articulated to the output of rectifier 1 through K switch, minus earth, and in parallel with corresponding electrochemical capacitor.Rectifier 1 has the floating charge current limliting and reaches mode of operations such as all filling current limliting, when rectifier 1 starts, can set or not set automatic charge mode, can quicken during setting the charging of the battery pack 3 after the discharge, the capacity of rectifier 1 can be dealt with the power that recharges after the fully loaded work of UPS and battery pack 3 are discharged fully.If battery pack 3 does not have full charging, the charging current control ring can be adjusted to battery pack 3 crossing current chargings to charging voltage automatically; When direct voltage reached float charge voltage, then can to keep this voltage automatically constant for voltage control loop, and charging current descends from initial value.
Be lower than 80% at mains failure or civil power amplitude, inverter 2 is through battery pack 3 power supplies, and the output burning voltage, and when battery pack 3 discharged into final voltage, inverter 2 automatically shut down.
Accompanying drawing 6 is the utility model test philosophy figure, for guaranteeing no battery pack 3 discharges in the test, influences accuracy, and the battery pack 3 of UPS is not worked during test, and test data is as follows:
| Input | Output | The UPS load | Energy-conservation ratio | ||||||||||||
| V AN | V BN | V CN | I AN | I BN | I CN | K VA | V an | V bn | V cn | I an | I bn | I cn | K VA | ||
| 206.3 | 215.5 | 238 | 8.9 | 7.7 | 8.7 | 5.56 | 219.5 | 220.4 | 219.1 | 4.0 | 4.7 | 3.2 | 2.62 | 3％ | |
| 208.7 | 213.7 | 234.3 | 12.3 | 11.4 | 12.2 | 7.86 | 219.5 | 220.3 | 219.0 | 17.3 | 17.5 | 14.2 | 10.76 | 10％ | 73％ |
| 203.2 | 261.1 | 222.4 | 18.9 | 18.3 | 19.1 | 12.04 | 219.5 | 220.2 | 219.1 | 31.0 | 30.8 | 27.0 | 19.5 | 25％ | 61％ |
| 209.1 | 214.5 | 229.0 | 20.0 | 19.4 | 20.4 | 13.01 | 219.5 | 220.2 | 219.1 | 37.3 | 34.2 | 31.4 | 22.6 | 30％ | 57％ |
By last data as can be seen, when loading on 3%, the high energy-saving circuit of UPS does not work as yet, and when loading on 10% when above, input current is below 73% of output current, and load is healed big energy-saving effect more obviously.
Claims (3)
1, a kind of UPS uninterrupted power supply(ups), include rectifier (1), inverter (2) and battery pack (3), the input of rectifier (1) is electrically connected with the city, and inverter (2) is powered by rectifier (1), battery pack (3) is mounted on the output of rectifier (1), it is characterized in that: between the power factor correction function device (11) of described rectifier (1) and the thyristor bridge (12) for being connected in parallel.
2, UPS uninterrupted power supply(ups) according to claim 1 is characterized in that: described power factor correction function device (11) adopts the additional power factor correction function module that the IGBT switch is arranged.
3, UPS uninterrupted power supply(ups) according to claim 1 is characterized in that: described rectifier (1) includes the floating charge current limliting and all fills the mode of operation of current limliting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223064 CN2600968Y (en) | 2003-01-17 | 2003-01-17 | UPS uninterruption power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223064 CN2600968Y (en) | 2003-01-17 | 2003-01-17 | UPS uninterruption power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600968Y true CN2600968Y (en) | 2004-01-21 |
Family
ID=34162546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03223064 Expired - Lifetime CN2600968Y (en) | 2003-01-17 | 2003-01-17 | UPS uninterruption power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2600968Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324196A (en) * | 2011-10-18 | 2012-01-18 | 南京大学 | Simulation training and evaluation semi-physical simulation system of aviation hydraulic oil pump vehicle |
| CN102447403A (en) * | 2011-11-09 | 2012-05-09 | 北京工业大学 | Three-phase rectifier circuit with low harmonic wave continuous input current |
| CN101710695B (en) * | 2009-12-03 | 2012-06-06 | 艾默生网络能源有限公司 | Wave-following current-limiting method and device of switching tube of uninterruptible power supply |
| CN102684513A (en) * | 2011-03-16 | 2012-09-19 | 力博特公司 | Uninterruptible power supply and rectifying circuit of uninterruptible power supply |
| CN101685973B (en) * | 2008-09-26 | 2013-03-20 | 力博特公司 | Uninterrupted power supply |
| CN111999662A (en) * | 2020-09-18 | 2020-11-27 | 山特电子（深圳）有限公司 | Method for detecting external switch state of battery of UPS |
| CN112821377A (en) * | 2021-01-04 | 2021-05-18 | 深圳市伊力科电源有限公司 | DC bus voltage control method, device and storage medium |
-
2003
- 2003-01-17 CN CN 03223064 patent/CN2600968Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685973B (en) * | 2008-09-26 | 2013-03-20 | 力博特公司 | Uninterrupted power supply |
| CN101710695B (en) * | 2009-12-03 | 2012-06-06 | 艾默生网络能源有限公司 | Wave-following current-limiting method and device of switching tube of uninterruptible power supply |
| CN102684513A (en) * | 2011-03-16 | 2012-09-19 | 力博特公司 | Uninterruptible power supply and rectifying circuit of uninterruptible power supply |
| CN102684513B (en) * | 2011-03-16 | 2016-02-03 | 力博特公司 | Uninterrupted power supply and rectification circuit thereof |
| CN102324196A (en) * | 2011-10-18 | 2012-01-18 | 南京大学 | Simulation training and evaluation semi-physical simulation system of aviation hydraulic oil pump vehicle |
| CN102447403A (en) * | 2011-11-09 | 2012-05-09 | 北京工业大学 | Three-phase rectifier circuit with low harmonic wave continuous input current |
| CN102447403B (en) * | 2011-11-09 | 2014-02-26 | 北京工业大学 | Three-phase rectifier circuit with low harmonic wave continuous input current |
| CN111999662A (en) * | 2020-09-18 | 2020-11-27 | 山特电子（深圳）有限公司 | Method for detecting external switch state of battery of UPS |
| CN111999662B (en) * | 2020-09-18 | 2023-01-06 | 山特电子（深圳）有限公司 | Method for detecting external switch state of battery of UPS |
| CN112821377A (en) * | 2021-01-04 | 2021-05-18 | 深圳市伊力科电源有限公司 | DC bus voltage control method, device and storage medium |
| CN112821377B (en) * | 2021-01-04 | 2023-08-04 | 深圳市伊力科电源有限公司 | DC bus voltage control method, DC bus voltage control equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130117 Granted publication date: 20040121 |