CN202906568U - Three-phase active inversion on-line discharger - Google Patents
Three-phase active inversion on-line discharger Download PDFInfo
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- CN202906568U CN202906568U CN 201220635867 CN201220635867U CN202906568U CN 202906568 U CN202906568 U CN 202906568U CN 201220635867 CN201220635867 CN 201220635867 CN 201220635867 U CN201220635867 U CN 201220635867U CN 202906568 U CN202906568 U CN 202906568U
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Abstract
The utility model relates to the discharger technology field, particularly to a three-phase active inversion on-line discharger. The three-phase active inversion on-line discharger of the utility model is characterized in that the pin 3 of a discharging switch of the three-phase active inversion on-line discharger is respectively connected with one end of a battery and a bus; the pin 4 of the discharge switch is respectively connected with the other end of the battery, the anode of a diode, and a pin 1 and a pin 2 of the charging switch; the cathode of the diode is respectively connected with the pin 3, pin4, and the bus of the charging switch; the pin1 and pin 2 of the discharging switch are respectively connected with an active inversion module 1, an active inversion module 2, and a pin 1 and pin 2 of an active inversion module 3; and the active inversion module 1, the active inversion module 2, and the pin 3 of the active inversion module 3 are respectively connected with the pin 1 of a commercial power switch. The three-phase active inversion on-line discharger can ensure the discharging of a storage battery under the condition of zero-second switching. During the discharging process, the inverter can instantly stop discharging while facing the power failure of the commercial power and is switched to the load with zero second for load power supply. The three-phase active inversion on-line discharger allows online discharging and ensures secure discharging and barely generates heat energy. The three-phase active inversion on-line discharger can invert the storage battery direct current into the three-phase alternating current which is then returned to the electrical network.
Description
Technical field:
The utility model relates to the discharge instrument technical field, is specifically related to the online power-saving balanced discharge instrument of a kind of storage battery.
Background technology:
Modern electric industry communications industry need to provide back-up source by storage battery; storage battery occupies an important position, and regularly examining discharge capacitor is a basic skills, safeguards storage battery and is operated in the important process that good state is the staff by it; conventional charging method has the off-line discharge; heating electric resistance type discharge load, single-phase inversion electric discharges etc. can cause off-line dangerous usually; switch slow; on-the-spot heating is serious, unbalanced source voltage, the problem such as the heavy-current discharge wire is thicker.Discharge is off-line before, and during mains failure, the load outage needs manually the discharge instrument to be cut off, Attended mode, switching needs certain hour, and load meeting outage has the dead electricity possibility, conventional conductive discharge heating is serious, and is influential to the life of storage battery to high temperature, increases the air-conditioning burden, wastes energy.
The utility model content:
The purpose of this utility model provides the online discharge instrument of a kind of three-phase active inversion, it can guarantee in the situation of switching in zero second, carry out battery discharging, during discharge, meet mains failure, inverter stops discharge immediately, switch to simultaneously load powering load, online discharge, safe-discharge zero second, substantially do not generate heat, can be reverse into three-phase alternating current to accumulator DC and be returned to electrical network.
In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises active inversion module one A, active inversion module two B, active inversion module three C, discharge switch S1, charge switch S2, urban electric power switch S3, diode D1,3 pin of discharge switch S1 respectively with an end of battery, bus connects, 4 pin of discharge switch S1 respectively with the other end of battery, the positive pole of diode D1,1 pin of charge switch S2,2 pin connect, the negative pole of diode D1 respectively with 3 pin of charge switch S2,4 pin, bus connects, 1 pin of discharge switch S1,2 pin respectively with active inversion module one A, active inversion module two B, 1 pin of active inversion module three C, 2 pin connect, active inversion module one A, active inversion module two B, 3 pin of active inversion module three C all are connected with 1 pin of urban electric power switch S3,4 pin of active inversion module one A are connected with 2 pin of urban electric power switch S3,4 pin of active inversion module two B are connected with 3 pin of urban electric power switch S3,4 pin of active inversion module three C are connected with 4 pin of urban electric power switch S3,5 pin of urban electric power switch S3,6 pin, 7 pin, 8 pin all are electrically connected with the city.
Described diode D1 is isolating diode.
The utility model utilizes the unilateal conduction characteristic of diode to isolate normal battery tension, plays in addition the afterflow effect when storage battery breaks.Sky is opened with fuse and is played overcurrent protection.
The utility model discharges online, and load is not cut off the power supply, and accumulator DC is converted to alternating current, energy savings, and three-phase current-sharing balancing technique realizes that three-phase voltage is in a basic balance.
It is serious that the utility model solves existing discharge instrument heating, and off-line is dangerous, the problems such as unbalanced source voltage, in the situation that guarantees switching in zero second, carry out battery discharging, during discharge, meet mains failure, inverter stops discharge immediately, switches to simultaneously the load powering load zero second.Online discharge, safe-discharge does not generate heat substantially, accumulator DC is reverse into three-phase alternating current is returned to electrical network.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Referring to Fig. 1, this embodiment adopts following technical scheme: it comprises active inversion module one A, active inversion module two B, active inversion module three C, discharge switch S1, charge switch S2, urban electric power switch S3, diode D1,3 pin of discharge switch S1 respectively with an end of battery, bus connects, 4 pin of discharge switch S1 respectively with the other end of battery, the positive pole of diode D1,1 pin of charge switch S2,2 pin connect, the negative pole of diode D1 respectively with 3 pin of charge switch S2,4 pin, bus connects, 1 pin of discharge switch S1,2 pin respectively with active inversion module one A, active inversion module two B, 1 pin of active inversion module three C, 2 pin connect, active inversion module one A, active inversion module two B, 3 pin of active inversion module three C all are connected with 1 pin of urban electric power switch S3,4 pin of active inversion module one A are connected with 2 pin of urban electric power switch S3,4 pin of active inversion module two B are connected with 3 pin of urban electric power switch S3,4 pin of active inversion module three C are connected with 4 pin of urban electric power switch S3,5 pin of urban electric power switch S3,6 pin, 7 pin, 8 pin all are electrically connected with the city.
Described diode D1 is isolating diode.
Diode is isolating diode in this embodiment, and during the accumulators discharge, busbar voltage is constant, since diode unilateal conduction characteristic, not conducting during the diode reverse bias voltage, and battery tension is lower, the diode back-pressure is higher, battery tension adds that diode voltage equals the dynamo-electric pressure of busbar charging, works as commercial power interruption, and busbar voltage descends, when dropping to less than battery tension, diode current flow switched in zero second, and load is not cut off the power supply.
Active inversion stopped discharge when civil power stopped, and realized online safe-discharge.
The active inversion module realizes power division with three, and heating distributes, any one fault does not affect other, the public zero line of the alternating current 220V of inversion, three-phase four-wire system, zero line is indispensable, still the alternating current 220V of actual each module inversion, if there is a certain phase voltage lower, also flexibly wiring, it is low that the output of two modules all connects that phase voltage, during inversion, can slightly draw high civil power, remedy because the voltage that phase load remakes is low.
It is serious that this embodiment solves existing discharge instrument heating, and off-line is dangerous, the problems such as unbalanced source voltage, in the situation that guarantees switching in zero second, carry out battery discharging, during discharge, meet mains failure, inverter stops discharge immediately, switches to simultaneously the load powering load zero second.Online discharge, safe-discharge does not generate heat substantially, accumulator DC is reverse into three-phase alternating current is returned to electrical network.
Claims (2)
1. the online discharge instrument of three-phase active inversion, it is characterized in that it comprises active inversion module one (A), active inversion module two (B), active inversion module three (C), discharge switch (S1), charge switch (S2), urban electric power switch (S3), diode (D1), 3 pin of discharge switch (S1) respectively with an end of battery, bus connects, 4 pin of discharge switch (S1) respectively with the other end of battery, the positive pole of diode (D1), 1 pin of charge switch (S2), 2 pin connect, the negative pole of diode (D1) respectively with 3 pin of charge switch (S2), 4 pin, bus connects, 1 pin of discharge switch (S1), 2 pin respectively with active inversion module one (A), active inversion module two (B), 1 pin of active inversion module three (C), 2 pin connect, active inversion module one (A), active inversion module two (B), 3 pin of active inversion module three (C) all are connected with 1 pin of urban electric power switch (S3), 4 pin of active inversion module one (A) are connected with 2 pin of urban electric power switch (S3), 4 pin of active inversion module two (B) are connected with 3 pin of urban electric power switch (S3), 4 pin of active inversion module three (C) are connected with 4 pin of urban electric power switch (S3), 5 pin of urban electric power switch (S3), 6 pin, 7 pin, 8 pin all are electrically connected with the city.
2. the online discharge instrument of three-phase active inversion according to claim 1 is characterized in that described diode (D1) is isolating diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635867 CN202906568U (en) | 2012-11-27 | 2012-11-27 | Three-phase active inversion on-line discharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635867 CN202906568U (en) | 2012-11-27 | 2012-11-27 | Three-phase active inversion on-line discharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906568U true CN202906568U (en) | 2013-04-24 |
Family
ID=48127191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635867 Expired - Fee Related CN202906568U (en) | 2012-11-27 | 2012-11-27 | Three-phase active inversion on-line discharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944227A (en) * | 2014-04-22 | 2014-07-23 | 国网上海市电力公司 | Online active inverter discharging system for transformer substation storage battery |
| CN111697649A (en) * | 2020-06-11 | 2020-09-22 | 浙江创力电子股份有限公司 | Two-way inverter suitable for power internal maintenance |
-
2012
- 2012-11-27 CN CN 201220635867 patent/CN202906568U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944227A (en) * | 2014-04-22 | 2014-07-23 | 国网上海市电力公司 | Online active inverter discharging system for transformer substation storage battery |
| CN103944227B (en) * | 2014-04-22 | 2016-02-17 | 国网上海市电力公司 | A kind of online active inversion discharge system for storage batteries of transformer substation |
| CN111697649A (en) * | 2020-06-11 | 2020-09-22 | 浙江创力电子股份有限公司 | Two-way inverter suitable for power internal maintenance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20171127 |