CN201887528U - Direct-current power supply emergency system of substation on basis of ion-lithium battery - Google Patents
Direct-current power supply emergency system of substation on basis of ion-lithium battery Download PDFInfo
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- CN201887528U CN201887528U CN2010206224959U CN201020622495U CN201887528U CN 201887528 U CN201887528 U CN 201887528U CN 2010206224959 U CN2010206224959 U CN 2010206224959U CN 201020622495 U CN201020622495 U CN 201020622495U CN 201887528 U CN201887528 U CN 201887528U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model discloses a direct-current power supply emergency system of substation on basis of ion-lithium battery, consisting of portable split structure units which are connected in a quick plug manner. The portable split structure units comprise an ion-lithium battery pack unit, a distribution control switch unit, an inverter unit and a charging control unit, wherein the distribution control switch unit consists of two air switches, the inverter unit consists of an inverter, and the charging control unit consists of an alternating-current air switch, an air switch, a rectifier and a monitor. The system of the utility model is small in volume of unit structure, convenient for transportation and convenient for site assembling, satisfies the accident rescue emergency requirements of power systems to the greatest extent and can be used as a standby power supply for the site maintenance of the direct-current power units of the substation.
Description
Technical field
The utility model relates to the emergency system of power system transformer substation with DC power supply, be a kind of transforming plant DC power supply emergency system specifically based on ferrous phosphate lithium ion battery group, with when electrical network major accident or the major natural disasters, satisfy transformer station uses power supply to DC power supply and checkout instrument demand, interim battery backup during under normal circumstances as transformer station's storage battery list configuration set satisfies the requirement that the batteries needs is broken away from the dc bus property checked discharge regularly.
Background technology
The power system transformer substation DC power supply is protection and the control of power transmission and transforming equipment and the working power of communicating by letter, and its batteries is for accident electricity consumptions such as transforming plant protecting, control, emergency lightings.But in the electrical network major accident; particularly during major natural disasters; can cause the batteries can't operate as normal; for make electrical network as early as possible recovery can take to send electric scheme temporarily; at this moment require power transmission and transforming equipment is carried out necessary detection, the protection of these equipment simultaneously is with control and to communicate by letter be to need DC power supply to provide power supply for it.In addition among the DL/T724-2000 " electric power system with accumulator direct current supply device operation and maintenance technical regulation ", the property checked discharge requirement to single group storage battery can not be out of service, substitute for the discharge test that carries out full capacity also needs the backup battery group temporarily, make it finish volume test.This system and method is applied in the property the checked discharge test and the rehearsal of accident emergency prediction scheme to the single group storage battery of transformer station by the utility model people.
The domestic emergency power supply of transforming plant system that Proton Exchange Membrane Fuel Cells is arranged at present, but based on factors such as the technology maturation of fuel cell, operation maintenance carries out to use in electric power system and has difficulty.Other are UPS, EPS power supply and illumination emergency power supply substantially, still can not be as the DC power supply emergency system of power system transformer substation.
The utility model content
The purpose of this utility model provides a kind of transforming plant DC power supply emergency system based on ferrous phosphate lithium ion battery group, be intended to be used for the electrical network major accident, particularly direct current emergency power supply during major natural disasters and the back-up source during just often as the property the checked discharge test of single group storage battery configuration.
This novel purpose is achieved in that
A kind of transforming plant DC power supply emergency system based on ferrous phosphate lithium ion battery group is made up of following portable split construction unit, and adopts quick inserting mode to connect between the portable split construction unit;
Lithium iron battery group unit: form by the ferrous phosphate lithium ion battery;
Distribution control switch unit: form by 160A air switch K3 and 25A air switch K4, two inlet sides of air switch K3 are as being connected with the positive and negative output of lithium iron battery group unit respectively by the fast insert-pull cable, two inlet sides of air switch K4 go out end and are connected with two of air switch K3 respectively, and two of air switch K3 go out end as passing through fast insert-pull cable output DC;
Inverter unit: be made up of inverter, two inputs of inverter, two by air switch K4 in fast insert-pull cable and the distribution control switch unit respectively go out end and are connected; Two outputs of inverter are as exporting the 220V alternating current by the fast insert-pull cable;
Charging control unit: the watch-dog that is exchanged air switch K1,63A air switch K2, rectifier and internal battery management system by 32A is formed; The inlet side that exchanges air switch K1 is as importing the 220V alternating current by the fast insert-pull cable, the end that goes out that exchanges air switch K1 is connected with the input of rectifier, the positive and negative output of rectifier is connected with two inlet sides of air switch K2 respectively, two of air switch K2 go out end as being connected with the positive and negative output of lithium iron battery group unit respectively by the fast insert-pull cable, watch-dog is connected with rectifier by connection on the one hand, is connected with lithium iron battery group unit by four-core fast insert-pull connection with serial mode on the other hand;
Also be serially connected with D.C. contactor JZ1 in the above-mentioned distribution control switch unit on the inlet side of air switch K3 as discharge prevention; One of air switch K2 goes out another D.C. contactor JZ2 that also is serially connected with on the end as charge protection in the above-mentioned charging control unit.
Above-mentioned ferrous phosphate lithium battery model is FP3291152, and the rectifier model is HD22020-3, and the watch-dog model is BMJ-FPC, and the inverter model is TP630E-N-U.
Above-mentioned lithium iron battery group unit, distribution control switch unit, inverter unit and charging control unit all adopt interpolation frame formula structure, and the top of lithium iron battery group unit interpolation frame has protruding pin and bottom that the shrinkage pool suitable with this protruding pin arranged; Also have for the corresponding power supply box of installing that inserts of above-mentioned all unit interpolation frames.
The utility model is based on the transforming plant DC power supply emergency system and the using method of lithium iron battery, be with ferrous phosphate lithium ion battery group, based on compositions such as CAN bus monitoring system, high frequency switch power rectification charging module/inversion module and quick socket cables, adopt cordwood minute body structure, form the portable unit of interpolation frame structure by charging inversion, battery pack, distribution control, emergent use mainly is battery pack (battery interpolation frame), distribution control unit (switch interpolation frame) and quick socket cable, realizes on-the-spot assembling fast according to functional requirement.
The transforming plant DC power-supply system is widely used as accident electricity consumptions such as the protection, control, communication, emergency lighting of power transmission and transforming equipment in the power engineering, and as the work or the back-up source in fields such as electric power, communication, its importance is self-evident.Stand and directly influence the safe operation of electric power system with the forfeiture meeting of DC power supply; particularly when electrical network major accident or major natural disasters; for example after 512 Wenchuan special violent earthquakes take place; under the still spendable situation of part power transmission and transformation; because original batteries is damaged; the protection DC power supply that control needs can't be provided, cause in the shortest time, to send electricity by emergent restoring temporarily, provide electric power to rescue and relief work.Feel the importance of transformer station's DC supply for emergency this moment deeply, also is the major reason that the utility model people proposes this research and development program element.In addition, the transformer station of electric power system 110kV and following electric pressure, only disposed a group storage battery according to modular design, and according to DL/T724-2000 " electric power system with accumulator direct current supply device operation and maintenance technical regulation " regulation, batteries can not break away from dc bus and carry out the full capacity property checked discharge test.Adopt native system under the protection that prevents battery measure in parallel, the access transformer station direct current system is born the station and is used DC power supply, and the nuclear that former batteries was finished 10 hours safely holds test.
This method has realized convenient transportation, on-the-spot Fast Installation at the emergent requirement of repairing, has satisfied the emergent demand of transformer station and power plant's DC power supply.
The beneficial effects of the utility model are: the volume that the utility model overcomes employing lead acid accumulator and other modes is big, equipment is heavy, the life-span is short, the charging interval is long, problems such as transportation is inconvenient, delay repairing time, make that it has high integration, high-intelligentization, the life-span is long, volume is little, characteristics such as quick charge, high-multiplying power discharge, wiring are simple and clear, satisfied power system accident to greatest extent and robbed the danger in emergency requirement, the usefulness of the stand-by power supply in the time of satisfying as the on-site maintenance of transforming plant DC power-supply device simultaneously.
The utility model compact conformation is convenient to transportation, and easy operating can be saved the accident maintenance time and be suitable for the work down of various mal-conditions, systemic price ratio height, and large-scale application can realize high economic benefit and produce bigger social benefit.
Description of drawings
Fig. 1 is the hardware block diagram of this novel emergency system.
Fig. 2-the 1st, this novel emergency system monocell winding line chart.
Fig. 2-the 2nd, this novel emergency system double cell winding line chart.
Fig. 3-1 and Fig. 3-2 is respectively the outside drawing of the combining structure (two kinds of power supply boxs) of this novel emergency system.
Fig. 4 is the power line connection layout (back side of power supply box shown in Fig. 3-1) of this novel emergency system.
Fig. 5 is the connection connection layout (back side of power supply box shown in Fig. 3-1) of this novel emergency system.
Embodiment
Referring to Fig. 1, form by following portable split construction unit, and adopt quick inserting mode to connect between the portable split construction unit;
Lithium iron battery group unit: form by the ferrous phosphate lithium ion battery;
Distribution control switch unit: form by 160A air switch K3 and 25A air switch K4, two inlet sides of air switch K3 are as being connected with the positive and negative output of lithium iron battery group unit respectively by the fast insert-pull cable, two inlet sides of air switch K4 go out end and are connected with two of air switch K3 respectively, and two of air switch K3 go out end as passing through fast insert-pull cable output DC;
Inverter unit: be made up of inverter, two inputs of inverter, two by air switch K4 in fast insert-pull cable and the distribution control switch unit respectively go out end and are connected; Two outputs of inverter are as exporting the 220V alternating current by the fast insert-pull cable;
Charging control unit: the watch-dog that is exchanged air switch K1,63A air switch K2, rectifier and internal battery management system by 32A is formed; The inlet side that exchanges air switch K1 is as importing the 220V alternating current by the fast insert-pull cable, the end that goes out that exchanges air switch K1 is connected with the input of rectifier, the positive and negative output of rectifier is connected with two inlet sides of air switch K2 respectively, two of air switch K2 go out end as being connected with the positive and negative output of lithium iron battery group unit respectively by the fast insert-pull cable, watch-dog is connected with rectifier by connection on the one hand, is connected with lithium iron battery group unit by four-core fast insert-pull connection with serial mode on the other hand;
Also be serially connected with D.C. contactor JZ1 in the above-mentioned distribution control switch unit on the inlet side of air switch K3 as discharge prevention; One of air switch K2 goes out another D.C. contactor JZ2(of also being serially connected with on the end as charge protection referring to Fig. 2-1 in the above-mentioned charging control unit, and diode D is in parallel with D.C. contactor).
Lithium iron battery group unit, distribution control switch unit, inverter unit and charging control unit all adopt interpolation frame formula structure, and the top of lithium iron battery group unit interpolation frame has protruding pin and bottom that the shrinkage pool suitable with this protruding pin arranged; Also have for the corresponding power supply box of installing 1 that inserts of above-mentioned all unit interpolation frames.
A kind of working method and using method of the transforming plant DC power supply emergency system based on ferrous phosphate lithium ion battery group: carry out according to the following steps:
A), lithium iron battery group unit, distribution control switch unit, inverter unit and charging control unit are made as interpolation frame respectively, be connected with the fast insert-pull connection by the fast insert-pull cable between the unit interpolation frame and combine, carry out the regular maintenance and the management of battery pack, making the reserve DC power supply on the one hand is used in combination, separately use (among Fig. 3-1, Fig. 3-2, Fig. 4 and Fig. 5 as emergency power supply on the other hand, battery interpolation frame 2 is arranged in the power supply box 1, switch interpolation frame 3, inverter interpolation frame 4; Rectifier interpolation frame 6 is arranged, watch-dog interpolation frame 7 and interchange input and direct current output interface 8 in the rectifier box 5).
B), safeguard when using, connect the AC220V power supply by ac input end, send into rectifier by 32A air switch K1 combined floodgate, rectifier output direct current is to 63A direct current air K switch 2 inlet sides, air switch K2 goes out end and passes through the fast insert-pull cable to each battery frame electrical connection terminal, and parallel connection simultaneously outputs to 160A direct current sky and drives line end into.The 160A direct current sky that closes when safeguarding is at ordinary times opened, finish the charging and the floating charge work of battery pack, this moment, watch-dog was gathered direct voltage, electric current and battery condition, the BMS(battery management system software that it is embedded) by RS485 high-frequency switch module and battery pack are carried out daily measurement, monitoring and maintenance management.Remove the rock-steady structure of LiFePO 4 ion battery self positive electrode olivine-type structure, even outside also not burning, explode in strong collision, native system all is provided with soft, hardware protection at charge circuit and discharge loop, so safe especially when meeting an urgent need use.
C), when adopting double cell group (seeing Fig. 2-2 emergency system double cell winding line chart), only polygamy has been put a battery case and (has been comprised battery frame, distribution control unit frame, inverter is a selectable unit), only need this battery case unit is connected power line and connection by winding diagram, the relevant parameter (battery pack number, charging current, charging voltage etc.) of adjusting watch-dog can carry out daily measurement, monitoring and the maintenance management of two Battery packs.The use in parallel of two Battery packs also can separately can be used in different transformer stations or place during use.
D), when using as the direct current emergency power supply, close AC power earlier, remove stube cable, the battery interpolation frame and the distribution control interpolation frame of battery pack are extracted out, put into and specially join the aluminium alloy suitcase, be transported to the place that transformer station need provide DC power supply in the portable mode of small size, insert battery tank tower (also can stack assembling) on the spot, and protruding pin is put the shrinkage pool (comprising distribution control and inversion interpolation frame) that following battery interpolation frame pushes up at the bottom of guaranteeing top battery interpolation frame, press colour code and be connected quick socket cable with the numbering correspondence, finish whole assemblings, 160A direct current sky is opened direct current output inserts the transforming plant DC feed panel by polarity power bus (closing mother), check that the 160A direct current sky that closes after errorless opens, use dc load for the transformer station station, the DC power supply emergency system enters operating state.
E), when as the on-the-spot instrument that detects converting equipment during with emergent AC power, whole system is placed in by transformer station's equipment to be detected, the AC power of detecting instrument is connected to the output of native system inverter, check errorless after, the inverter 25A direct current sky that closes is opened, and inverter just can be test and provides AC power with instrument.
F), when holding, native system integral body is placed in by the transforming plant DC power-supply device as the single group storage battery of configuration transformer station discharge nuclear.The incoming transport power supply starts the emergency system operation, requires to set operational factor according to concrete transformer station, after treating that operation is normal and meet this station and requiring, is connected on the transforming plant DC bus by the transformer station direct current system feed panel by polarity, for the station dc load.Then that former transformer station batteries is out of service, the nuclear that discharges separately holds, and can satisfy the safety test requirement of DL/T724-2000 " electric power system with accumulator direct current supply device operation and maintenance technical regulation " to single Battery pack configuration transformer station.
When g), at the scene the small-power fuel electric generator being arranged, small-sized fuel electric generator can be inserted the interchange input of native system, by " filtration voltage stabilizing " effect of battery pack, for power load provides qualified power supply.
Emergency system is divided into the two large divisions and forms: the battery case of charging device and battery pack, control.Charging device partly is responsible for monitoring, protection, the maintenance and management of DC supply for emergency system.The battery pack of battery case part is the DC supply for emergency supplier, and inversion module is mainly detecting instrument AC power is provided, and the distribution control unit plays dc load control and protective effect (seeing accompanying drawing 1).
The watch-dog of charging device adopts the liquid crystal Chinese character to show, embedded battery management system (BMS) is carried out the parameter setting of data acquisition, charging control and system's various piece of battery pack, is provided with alarm functions such as battery overvoltage/undervoltage and charging overcurrent.
The rectifier charging device of emergency power system adopts the bimodulus piece, and configuration 20Ah is the N+1 redundancy backup during battery pack, and charging module can charged hot plug, possesses charge protection function and batch (-type) charging modes.Charging module adopts the autonomous equalizing current technology, and the maximum degree of unbalance of intermodule output current is seen accompanying drawing 2-1 less than 3%().
When disposing two Battery packs, adopt a cover charging device to charge respectively and control and management, battery pack has the measure in parallel that prevents.Two Battery packs can satisfy emergent use (the seeing accompanying drawing 2-2) of DC power supply of two transformer stations simultaneously.
Incoming transport power supply at ordinary times, the watch-dog of charging device adopts CAN bus mode and battery management system (BMS) communication, realize the collection and the judgement of battery data, the control high frequency switching rectifier module carries out boost charge and floating charge to the lithium iron battery group, makes battery pack be in the stand-by state of full capacity constantly.Batteries is by 0.5～1 multiplying power (0.5～1C
10) charge, the discharge back capacity resuming time is short, presses 1C
10Charge and battery can be full of capacity in 1 hour.
All unit design by the outwork mode, possess good sealing property, and live part carries out insulation protection, and electric conductor does not have any exposure.Stube cable adopts the fast insert-pull joint, realizes connecting fast and removing.
Major function and technical indicator that should anxious system:
Major function: the compound mode that adopts high-performance ferrous phosphate lithium ion battery group and high-frequency switch module and inverter, when electrical network major accident or major natural disasters, satisfy and replace former transforming plant DC power-supply system that DC power supply is provided, and solution puts into operation preceding to the power supply requirement of converting equipment test-based examination with instrument, interim battery backup during under normal circumstances as transformer station's storage battery list configuration set satisfies the requirement that the batteries needs is broken away from the dc bus property checked discharge regularly.
Transforming plant DC emergency system technical indicator:
Power system capacity: 20-40Ah;
AC-input voltage: 220V or 380V;
Exchange input current: 32-63A;
Average anode current: 32-63A;
Output power inverter: 2-3kVA
Inverter output voltage: 220V
Float charge voltage: 242-252V;
Charging current: 10A-40A (0.5-1C
10)
Number of batteries: 70/group;
Batteries: 1-2 group;
Monitoring management: based on the BMS of CAN bus;
System protection: exchange input protection, direct current output protection.
Ferrous phosphate lithium ion battery technical indicator:
Rated voltage: 3.2V/ monomer;
Rated capacity: 20-40Ah/ monomer;
Float charge voltage: 3.45-3.6V/ monomer (20 ℃);
Final voltage: 2.55V/ monomer;
Self discharge amount: leave standstill 28 days＜3%(20 ℃);
Cycle life: 1500 times.
The parameter of main device and equipment:
Ferrous phosphate lithium ion battery: model FP3291152, Harbin light space group;
High frequency switching rectifier module: model HD22020-3, Ai Mosheng power supply company;
Watch-dog (built-in BMS): model BMJ-FPC, Harbin light space power supply company;
Inverter: TP630E-N-U, Harbin light space research institute;
The direct current sky is opened (K2, K3 and K4): 5SJ5, Siemens Company;
D.C. contactor: G9EA-1 (B) 400V/200A;
Protecting diode (being D among Fig. 2-1): MDK2-300A/600V;
Shunt (FL among Fig. 2-1): 200A/75mV, 0.5 grade.
Claims (3)
1. the transforming plant DC power supply emergency system based on ferrous phosphate lithium ion battery group is characterized in that: be made up of following portable split construction unit, and adopt quick inserting mode to connect between the portable split construction unit;
Lithium iron battery group unit: form by the ferrous phosphate lithium ion battery;
Distribution control switch unit: form by 160A air switch K3 and 25A air switch K4, two inlet sides of air switch K3 are as being connected with the positive and negative output of lithium iron battery group unit respectively by the fast insert-pull cable, two inlet sides of air switch K4 go out end and are connected with two of air switch K3 respectively, and two of air switch K3 go out end as passing through fast insert-pull cable output DC;
Inverter unit: be made up of inverter, two inputs of inverter, two by air switch K4 in fast insert-pull cable and the distribution control switch unit respectively go out end and are connected; Two outputs of inverter are as exporting the 220V alternating current by the fast insert-pull cable;
Charging control unit: the watch-dog that is exchanged air switch K1,63A air switch K2, rectifier and internal battery management system by 32A is formed; The inlet side that exchanges air switch K1 is as importing the 220V alternating current by the fast insert-pull cable, the end that goes out that exchanges air switch K1 is connected with the input of rectifier, the positive and negative output of rectifier is connected with two inlet sides of air switch K2 respectively, two of air switch K2 go out end as being connected with the positive and negative output of lithium iron battery group unit respectively by the fast insert-pull cable, watch-dog is connected with rectifier by connection on the one hand, is connected with lithium iron battery group unit by four-core fast insert-pull connection with serial mode on the other hand;
Also be serially connected with D.C. contactor JZ1 in the above-mentioned distribution control switch unit on the inlet side of air switch K3 as discharge prevention; One of air switch K2 goes out another D.C. contactor JZ2 that also is serially connected with on the end as charge protection in the above-mentioned charging control unit.
2. the transforming plant DC power supply emergency system based on ferrous phosphate lithium ion battery group according to claim 1, it is characterized in that: described ferrous phosphate lithium battery model is FP3291152, the rectifier model is HD22020-3, the watch-dog model is BMJ-FPC, and the inverter model is TP630E-N-U.
3. the transforming plant DC power supply emergency system based on ferrous phosphate lithium ion battery group according to claim 1 and 2, it is characterized in that: described lithium iron battery group unit, distribution control switch unit, inverter unit and charging control unit all adopt interpolation frame formula structure, and the top of lithium iron battery group unit interpolation frame has protruding pin and bottom that the shrinkage pool suitable with this protruding pin arranged; Also have for the corresponding power supply box of installing (1) that inserts of above-mentioned all unit interpolation frames.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206224959U CN201887528U (en) | 2010-11-24 | 2010-11-24 | Direct-current power supply emergency system of substation on basis of ion-lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206224959U CN201887528U (en) | 2010-11-24 | 2010-11-24 | Direct-current power supply emergency system of substation on basis of ion-lithium battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035249A (en) * | 2010-11-24 | 2011-04-27 | 四川电力试验研究院 | Direct current power supply emergency system of transformer substation based on lithium iron battery |
| CN103219766A (en) * | 2013-04-08 | 2013-07-24 | 国家电网公司 | Non floating charge lithium battery type DC (direct current) power system used for station |
| JP2018033215A (en) * | 2016-08-23 | 2018-03-01 | 日立Ｇｅニュークリア・エナジー株式会社 | Dc power source device |
| CN114884168A (en) * | 2022-05-13 | 2022-08-09 | 国网湖北省电力有限公司宜昌供电公司 | Transformer substation direct current system based on lithium iron phosphate storage battery |
-
2010
- 2010-11-24 CN CN2010206224959U patent/CN201887528U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035249A (en) * | 2010-11-24 | 2011-04-27 | 四川电力试验研究院 | Direct current power supply emergency system of transformer substation based on lithium iron battery |
| WO2012068774A1 (en) * | 2010-11-24 | 2012-05-31 | 四川电力试验研究院 | Lithium iron battery-based direct current power supply emergency response system for transformer substation |
| CN102035249B (en) * | 2010-11-24 | 2013-06-19 | 四川电力试验研究院 | Direct current power supply emergency system of transformer substation based on lithium iron battery |
| CN103219766A (en) * | 2013-04-08 | 2013-07-24 | 国家电网公司 | Non floating charge lithium battery type DC (direct current) power system used for station |
| JP2018033215A (en) * | 2016-08-23 | 2018-03-01 | 日立Ｇｅニュークリア・エナジー株式会社 | Dc power source device |
| CN114884168A (en) * | 2022-05-13 | 2022-08-09 | 国网湖北省电力有限公司宜昌供电公司 | Transformer substation direct current system based on lithium iron phosphate storage battery |
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