CN203026971U - Storage battery monitoring system power loss prevention device - Google Patents
Storage battery monitoring system power loss prevention device Download PDFInfo
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- CN203026971U CN203026971U CN 201220584935 CN201220584935U CN203026971U CN 203026971 U CN203026971 U CN 203026971U CN 201220584935 CN201220584935 CN 201220584935 CN 201220584935 U CN201220584935 U CN 201220584935U CN 203026971 U CN203026971 U CN 203026971U
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- storage battery
- discharge
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- charging module
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- 238000012544 monitoring process Methods 0.000 title abstract description 3
- 230000002265 prevention Effects 0.000 title abstract 2
- 239000002253 acid Substances 0.000 claims abstract description 8
- 210000000352 storage cell Anatomy 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 16
- 238000007599 discharging Methods 0.000 abstract description 14
- 230000005611 electricity Effects 0.000 description 8
- 238000012806 monitoring device Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a storage battery monitoring system power loss prevention device. The device comprises a charging module which is connected to a direct-current load, and a transformer substation valve regulation type lead-acid storage battery pack which can be used to perform power supply on the direct-current load. A direct-current storage battery charging circuit is formed by the charging module and the storage battery pack. A high-power laser is connected in parallel into the direct-current storage battery charging circuit, and a pair of contacts which can be controlled automatically in a program control manner and is in action is serially connected into the charging circuit. According to the utility model, the hidden danger caused by the storage battery on direct-current system power supply in the discharging process can be solved, and the safe and stable operation of a power system can be ensured.
Description
Technical field
The utility model relates to a kind of anti-deactivation means of Monitored System of Industrial Storage Cell, especially a kind ofly can prevent that battery discharging test from causing the device that direct current system is interrupted.
Background technology
Electric power system analysing valve control type lead-acid accumulator battery rule of management requires per month transformer station's analysing valve control type lead-acid accumulator battery group once to be activated dynamic discharge (100A, 2S), every three months once activates Electro-Static Discharge (C0.5 to the analysing valve control type lead-acid accumulator battery group, I10), the analysing valve control type lead-acid accumulator battery group was carried out full capacity examination (C10 one time in every 2 years, I10) or 50% capacity (C5, I10) examination discharges and recharges, to keep battery capacity.
Because the present method of Electro-Static Discharge is that charging module (GK) is quit work, batteries is not out of service, only relying on batteries powers to DC load, batteries is powered to discharge load simultaneously, this moment is if any single storage battery open circuit, whole storage battery will open circuit, and its direct result is the dc bus decompression, as shown in Figure 1.
Existing storage battery monitoring device design focal point is the realization of monitoring function, the impact of less taking into account system on the direct current system safe operation.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and by being devoted to solve the storage battery hidden danger that power supply causes to direct current system in discharge process, the assurance power system safety and stability moves, and a kind of anti-deactivation means of Monitored System of Industrial Storage Cell is provided.
The purpose of this utility model is completed by following technical solution, it comprises that one is connected in charging module and the transformer station's analysing valve control type lead-acid accumulator battery group that can power to described DC load of DC load, and described charging module and batteries consist of the direct-flow storage battery charge circuit; Be parallel with a heavy-duty diode in described direct-flow storage battery charge circuit, and be serially connected with in charge circuit and a pair ofly can carry out automatically controlling the contact that the action of going forward side by side is done by program control.
Charge normal in situation, the DC charging module is powered to DC load simultaneously to battery charging; When the regular Electro-Static Discharge of needs, with this contact conducting, switch to the discharge loop that has installed heavy-duty diode additional by the program that sets; At this moment, due to the reverse cut-off characteristics of heavy-duty diode, the charging cut-off of charging module to batteries be not so need the charge closing module when discharging; And at this moment when exchanging dead electricity, according to the forward conduction characteristic of heavy-duty diode, storage battery still can be to DC bus powered.And meet the storage battery open circuit in discharge process, at this moment charging module, can be because the storage battery open circuit cause the direct current system dead electricity to DC bus powered yet, and the fail safe of battery discharging has just obtained guarantee like this.
The requirement that improves discharge safety has 2 points:
Needn't the charge closing module in the battery discharging process, charging module is worked on, can prevent the storage battery open circuit to the danger of direct current cut-off, also requirement can be to battery discharging simultaneously, rather than by charging module, discharge module is powered.
In the battery discharging process, when the generation systems fault, exchange and interrupt, when charging module quit work, battery discharging should terminate at once, and can power for direct current system.
Abnormal situation, monitoring device and backstage outputting alarm.
Utility model has realized the Based Intelligent Control discharge module, automatically stops battery discharging when single or multiple storage batterys open circuit and other abnormal conditions, prevents the potential safety hazard of the dc bus decompression that causes because of single or multiple storage batterys open circuits.Although increased by a cover intelligent battery discharge controller in storage battery monitoring device, discharge step is not increased, and reduced the step of closing closed female module, prevented misoperation.When per month storage battery being carried out the capacity examination for 220kV substation operation personnel, adopt this covering device discharge, Switching power, directly do not carry out discharge operation, reduces operating process; This intelligent battery discharge controller is applied widely, all can be suitable for 35kV, 110 kV, 220 kV, 500 kV transformer station direct current systems.Effectively guarantee the safe operation of direct current system, guaranteed the stable operation of electrical network.
Description of drawings
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is a specific embodiment schematic diagram of the present utility model.
Fig. 4 is a kind of device back panel wiring schematic diagram described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Figure 2, the anti-deactivation means of Monitored System of Industrial Storage Cell described in the utility model, it comprises that one is connected in charging module 1 and the transformer station's analysing valve control type lead-acid accumulator battery group 2 that can power to described DC load of DC load, and described charging module and batteries consist of the direct-flow storage battery charge circuit; Be parallel with a heavy-duty diode 3 in described direct-flow storage battery charge circuit, and be serially connected with in charge circuit and a pair ofly can carry out automatically controlling the contact 4 that the action of going forward side by side is done by program control.
Charge normal in situation, the DC charging module is powered to DC load simultaneously to battery charging.When the regular Electro-Static Discharge of needs, with this contact conducting, switch to the discharge loop that has installed heavy-duty diode additional by the program that sets.At this moment, due to the reverse cut-off characteristics of heavy-duty diode, the charging cut-off of charging module to batteries be not so need the charge closing module when discharging.And at this moment when exchanging dead electricity, according to the forward conduction characteristic of heavy-duty diode, storage battery still can be to DC bus powered.And meet the storage battery open circuit in discharge process, at this moment charging module, can be because the storage battery open circuit cause the direct current system dead electricity to DC bus powered yet, and the fail safe of battery discharging has just obtained guarantee like this.
The equipment winding diagram
Embodiment
Certain type storage battery monitoring device is transformed, increased by a cover intelligent battery discharge controller in former storage battery monitoring device, revise main frame and discharge module internal program, increased the action feedback signal, increased control of discharge and detect and detect the order of attonity cancellation discharge and the order that starts discharge controller and stop discharging.Realized that the Based Intelligent Control discharge module stops discharge under abnormal conditions, and display alarm information, as shown in Figure 3.
Device control logic is as follows:
1, charged state
During charge in batteries, in discharge controller, the main contact of D.C. contactor is normally closed, and status indicator lamp goes out.Charger is battery charging by the normally closed main contact of D.C. contactor.
2, discharge condition
The sky of closed discharge module is opened, main frame is provided the electricity order by RS485 to discharge module, discharge module L1+, L1-end output 24V, discharge controller 24V relay closes (operate time is in the 7ms left and right), the D.C. contactor action makes normally closed main contact disconnect, and often opens the auxiliary contact closure for two groups, status indicator lamp is lighted, feedback signal FB output, main frame receives feedback signal FB, enters discharge; As confiscate feedback signal FB, withdraw from discharge and alarm.
After entering discharge condition, because the normally closed main contact of D.C. contactor disconnects, charger is cut off the battery charge circuit, and battery is in off-line state.But the normally closed main contact two ends reverse parallel connection of D.C. contactor a diode (led) module, in case guarantee that in discharge process, dc charging device can't be powered, can be powered through diode by batteries.
After discharge finished, discharge load stopped exporting L1+, and the L1-signal is exported simultaneously the KK signal discharge sky is cut-off out, and cuts off the D.C. contactor power supply in discharge controller, makes D.C. contactor reset, and its normally closed main contact is closed, and status indicator lamp goes out.
3, in discharge process, dc charging device exchanges dead electricity
In discharge process, normally closed main contact is opened, and diode (led) module oppositely ends.When the civil power dead electricity, main frame is after the AC220 end detects the dead electricity situation, alarm prompt, and transmission stops the discharge order to discharge module immediately, discharge load output KK signal cut-offs out the discharge sky, cuts off the D.C. contactor power supply in discharge controller, makes D.C. contactor reset, its normally closed main contact is closed, and status indicator lamp extinguishes.
4, discharging current do not detected in discharge process
In discharge process, normally closed main contact is opened, and diode (led) module oppositely ends.If main frame does not detect discharging current, alarm prompt, and transmission stops the discharge order to discharge module immediately, discharge load output KK signal cut-offs out the discharge sky, cut off the D.C. contactor power supply in discharge controller, make D.C. contactor reset, its normally closed main contact is closed, and status indicator lamp extinguishes.
5, in discharge process, disconnection, short circuit and fire appear in battery pack
In discharge process, normally closed main contact is opened, and diode (led) module oppositely ends.If in discharge process, battery pack opens circuit, discharge module loses suddenly power supply, quits work, and does not export the KK holding wire, so the discharge sky is opened the disconnection of being failure to actuate.Although the L+ of discharge module, L-signal lose, but often open the power supply that the auxiliary contact closure has been kept D.C. contactor in discharge controller, the normally closed main contact of D.C. contactor continues to remain open, the battery charge circuit still disconnects, device effectively intercepts DC charging loop and storage battery loop, and the assurance system still can safe operation.
Install back panel wiring as shown in Figure 4, the content shown in figure is the content of the utility model embodiment.
Claims (1)
1. the anti-deactivation means of a Monitored System of Industrial Storage Cell, it comprises that one is connected in charging module and the transformer station's analysing valve control type lead-acid accumulator battery group that can power to described DC load of DC load, and described charging module and batteries consist of the direct-flow storage battery charge circuit; It is characterized in that, be parallel with a heavy-duty diode in described direct-flow storage battery charge circuit, and be serially connected with in charge circuit and a pair ofly can carry out automatically controlling the contact that the action of going forward side by side is done by program control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584935 CN203026971U (en) | 2012-11-08 | 2012-11-08 | Storage battery monitoring system power loss prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584935 CN203026971U (en) | 2012-11-08 | 2012-11-08 | Storage battery monitoring system power loss prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026971U true CN203026971U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220584935 Expired - Fee Related CN203026971U (en) | 2012-11-08 | 2012-11-08 | Storage battery monitoring system power loss prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259301A (en) * | 2012-11-08 | 2013-08-21 | 嘉兴电力局 | Power loss prevention device of storage battery monitoring system |
-
2012
- 2012-11-08 CN CN 201220584935 patent/CN203026971U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259301A (en) * | 2012-11-08 | 2013-08-21 | 嘉兴电力局 | Power loss prevention device of storage battery monitoring system |
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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: 20130626 Termination date: 20191108 |