CN110120678A - Energy accumulation current converter - Google Patents
Energy accumulation current converter Download PDFInfo
- Publication number
- CN110120678A CN110120678A CN201910362835.4A CN201910362835A CN110120678A CN 110120678 A CN110120678 A CN 110120678A CN 201910362835 A CN201910362835 A CN 201910362835A CN 110120678 A CN110120678 A CN 110120678A
- Authority
- CN
- China
- Prior art keywords
- switch circuit
- energy accumulation
- current converter
- control
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009825 accumulation Methods 0.000 title claims abstract description 52
- 230000004913 activation Effects 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of energy accumulation current converter, divider resistance, first switch circuit and second switch circuit including control circuit and between exchange side and DC side；After receiving the unactivated signal of flow battery, control circuit controls the conducting of first switch circuit, second switch circuit disconnects, and exchange side is electrically connected via divider resistance, first switch circuit with DC side；After the signal for receiving flow battery activation, control circuit controls the disconnection of first switch circuit, the conducting of second switch circuit, and exchange side is electrically connected via second switch circuit with DC side.In the present invention under the original state of flow battery, divider resistance can access circuit to adjust the electric current of DC side, realize the precharge to flow battery to activate electrolyte, being pre-charged after the voltage of flow battery reaches preset value terminates, energy accumulation current converter can normally control flow battery and carry out charge and discharge cycles, also achieve the automatic switchover of flow battery precharge and normal charge and discharge.
Description
Technical field
The present invention relates to flow battery technology field more particularly to a kind of energy accumulation current converters.
Background technique
Flow battery in the initial state, by circulating pump send the solion in positive and negative anodes electrolyte storage tank to electricity
Heap does not have voltage between pile positive and negative anodes at this time.For the flow battery of MW class, it can usually pass through matched energy storage unsteady flow
Device (Power Conversion System, PCS) is come activation of charging, still, the voltage range one that energy accumulation current converter works normally
As in the voltage range of the normal charge and discharge of battery.In this way, energy accumulation current converter just can not directly to the pile under original state into
Row charging activation.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome, energy accumulation current converter can not be directly to initial shape in the prior art
Pile under state carries out the defect of charging activation, provides a kind of energy accumulation current converter.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of energy accumulation current converter, the energy accumulation current converter include exchange side and DC side, the DC side and flow battery
The battery management system of electrical connection, the energy accumulation current converter and the flow battery communicates to connect, it is characterized in that:
The energy accumulation current converter further includes control circuit and the partial pressure between the exchange side and the DC side
Resistance, first switch circuit and second switch circuit, wherein the control circuit and the first switch circuit, described second
The both ends of the second switch circuit are connected in parallel on after switching circuit electrical connection, the divider resistance and the series connection of first switch circuit；
When the energy accumulation current converter receives the unactivated signal of the flow battery that the battery management system is sent
Afterwards, the control circuit controls the first switch circuit and is connected and controls the second switch circuit disconnection, the exchange side
It is electrically connected via the divider resistance, the first switch circuit with the DC side；
After the energy accumulation current converter receives the signal for the flow battery activation that the battery management system is sent,
The control circuit, which controls the first switch circuit and disconnects and control the second switch circuit, to be connected, the exchange side via
The second switch circuit is electrically connected with the DC side.
Preferably, the control circuit includes controlling transformer and control loop, one end of the control transformer and institute
The electrical connection of exchange side is stated, the other end is electrically connected with the control loop, and the control loop includes that the state of activation of electrical connection is opened
It closes, the second coil of the first coil of first contactor and second contactor, the first main contacts connection of the first contactor
In the first switch circuit, the second main contacts of the second contactor is connected in the second switch circuit；
The state of activation switch is closed in the unactivated signal of the battery management system transmission flow battery,
It is disconnected when the signal of activation；
After the state of activation closes the switch, the first coil is powered and first main contacts is closed described in control
The conducting of first switch circuit, second coil is powered and second main contacts disconnects the control second switch circuit and breaks
It opens；
After the state of activation switch disconnects, described in the first coil power-off and first main contacts disconnection control
The disconnection of first switch circuit, second coil blackout and second main contacts closure control the second switch circuit and lead
It is logical.
Preferably, the control loop further includes inching button, the auxiliary contact of the first contactor are connected in parallel on described
The both ends of inching button；
After the state of activation closes the switch and triggers the inching button, the first coil is powered, and described first
Main contacts and auxiliary contact closure, the first main contacts closure control the first switch circuit conducting, second coil
It is powered and second main contacts disconnects and controls the second switch circuit disconnection.
Preferably, the divider resistance is adjustable resistance.
Preferably, the energy accumulation current converter further includes the current sensor for being connected on the DC side；
The current sensor issues the finger for increasing the divider resistance when the electric current detected is greater than pre-set current value
It enables.
Preferably, the energy accumulation current converter further includes temperature sensor, the temperature sensor is big in the temperature detected
When preset temperature, alarm command is issued.
It is described tightly to stop to break after button receives the alarm command preferably, the control loop further includes tightly stopping button
Open the control loop.
Preferably, the energy accumulation current converter further includes the circuit being connected between the exchange side and the control transformer
Control switch；
The circuit control switch is closed after the battery management system sends the unactivated signal of flow battery,
It is disconnected after the signal of activation.
The positive effect of the present invention is that: it is connected between the DC side and exchange side of energy accumulation current converter of the invention
Divider resistance, divider resistance can access circuit to adjust the electric current of DC side, realization pair under the original state of flow battery
To activate electrolyte, being pre-charged after the voltage of flow battery reaches preset value terminates for the precharge of flow battery, energy storage unsteady flow
Device can normally control flow battery and carry out charge and discharge cycles.In addition, in the present invention, first switch circuit and second switch
The automatic switchover of flow battery precharge and normal charge and discharge may be implemented in the setting of circuit.
Detailed description of the invention
Fig. 1 is the circuit connection diagram according to the energy accumulation current converter of the embodiment of the present invention.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
The present embodiment provides a kind of energy accumulation current converter, Fig. 1 shows the circuit connection diagram of the present embodiment.Referring to Fig.1, this reality
The energy accumulation current converter for applying example includes the exchange side being electrically connected with power grid and the DC side being electrically connected with flow battery, wherein liquid
Galvanic battery includes battery management system, and the energy accumulation current converter of the present embodiment and the battery management system of flow battery communicate to connect.
In the present embodiment, when energy accumulation current converter normal control flow battery charges, energy accumulation current converter is inputted from exchange side, through being isolated
Transformer TV0, EMC filter C1, filter capacitor C2, after bidirectional converter, a certain range of direct current can be exported in DC side
Voltage, when the electric discharge of energy accumulation current converter normal control flow battery, then the above process is opposite.
Specifically, in the present embodiment, the cell voltage of the flow battery under original state is approximately 0, flow battery
Battery management system determines that flow battery is in unactivated state, and sends flow battery not to the energy accumulation current converter of the present embodiment
The signal of activation, further, the state of activation switch K into the present embodiment send the unactivated signal of flow battery, activation
Status switch K is remained closed after receiving above-mentioned unactivated signal, is prepared to enter into flow battery pre-charge state.
In the present embodiment, it after above-mentioned unactivated signal is sent, in order to be pre-charged to flow battery, needs
One end of closed loop systems switch CM, circuit control switch CM and isolating transformer TV0Electrical connection, the other end and control transformation
Device TV1Electrical connection.Control transformer TV1For by isolating transformer TV0The voltage of output drops to the work of component in control loop
Make in voltage range, referring to Fig.1, the component in control loop includes tight guard's valve S1, state of activation switch K, inching button
S2, first contactor first coil KM1-1, second contactor the second coil KM2-1。
Wherein, after circuit control switch CM closure, in order to enter the pre-charge state of flow battery, it is also necessary to trigger point
Dynamic button S2, and have state of activation switch K closure, in this way, the first coil KM of first contactor1-1It is powered, first contactor
First main contacts KM1-2And auxiliary contact KM1-3Closure, and have, auxiliary contact KM1-3It is connected in parallel on inching button S2Both ends, when
Inching button S2After disconnection, control loop is also conducting, meanwhile, the second coil KM of second contactor2-1It is powered, second connects
Second main contacts KM of tentaculum2-2It disconnects.
Have again, in order to be pre-charged to flow battery, needs to be closed alternating-current switch Q1, in the first main contacts KM1-2It closes
It closes, the second main contacts KM2-2When disconnection, the first main contacts KM1-2The first switch circuit at place is connected, the second main contacts KM2-2Institute
Second switch circuit disconnect.In turn, when being pre-charged, the exchange side of energy accumulation current converter is via divider resistance R (partial pressure
The specification of resistance R can be according to the customized setting of practical application, for example, can be arranged according to the duration of required precharge),
One switching circuit is electrically connected with DC side, and can not be via being connected in parallel on concatenated divider resistance R and first switch circuit both ends
Second switch circuit be electrically connected with DC side.
In addition, in the present embodiment, divider resistance R is adjustable resistance, also, in the present embodiment, liquid can also be detected
The initial charge voltage of galvanic battery, for example, initial charge voltage can be dc circuit breaker Q2Between current sensor CT
Voltage, if the initial charge voltage is not less than preset charge voltage, (preset charge voltage of flow battery can be according to actually answering
With customized setting, for example, it may be the 1/3 of flow battery discharge cut-off voltage), then it can pass through and adjust divider resistance R's
Size adjusts above-mentioned initial charge voltage.When initial charge voltage is less than preset charge voltage, then it is disconnected can be closed direct current
Road device Q2, start as flow battery precharge.
During for flow battery precharge, it is connected on dc circuit breaker Q2Electric current between bidirectional converter passes
Sensor CT can detecte charging current, and when detecting charging current, greater than pre-set current value, (pre-set current value can be according to reality
Using customized setting, for example, it may be the 1/4 of flow battery rated current) when, current sensor CT can issue increase point
The instruction of piezoresistance passes through the adjusting to divider resistance R, it is ensured that charging current is less than pre-set current value.
The energy accumulation current converter of the present embodiment can also include temperature sensor, during for flow battery precharge,
The temperature sensor temperature is greater than preset temperature (preset temperature can be with for detecting environment temperature when temperature sensor detects
According to the customized setting of practical application) when, alarm command can be issued.According to the alarm command, it can trigger and tightly stop manually
Close S1, alternatively, in the present embodiment, which can be sent to tight guard's valve S1, tight guard's valve S1Receiving the report
After alert instruction, automatic trigger switch is to disconnect control loop.It should be appreciated that in the present embodiment, the sending of alarm command can be with
Because but being not limited to temperature anomaly.
The energy accumulation current converter of the present embodiment can also include the aeration-cooling device being electrically connected with circuit control switch CM,
When control loop disconnects, the circuit control switch CM not disconnected can still power for aeration-cooling device, to reduce current environment
Temperature.
During for flow battery precharge, battery management system detects the cell voltage of flow battery, works as battery
Voltage activates that (predeterminated voltage can be according to the customized setting of practical application, such as can be slightly above flow battery to predeterminated voltage
Discharge cut-off voltage) when, battery management system determine flow battery precharge terminate, to the energy accumulation current converter of the present embodiment send out
The signal of liquor charging galvanic battery activation, further, the state of activation switch K into the present embodiment send the letter of flow battery activation
Number, state of activation switch K is disconnected after receiving the signal of above-mentioned activation.
In the present embodiment, after state of activation switch K is disconnected, first coil KM1-1Power-off, the first main contacts KM1-2, auxiliary
Contact KM1-3It disconnects, meanwhile, the second coil KM2-1Power-off, the second main contacts KM2-2Closure.In turn, the first main contacts KM1-2Place
First switch circuit disconnect, the second main contacts KM2-2The second switch circuit at place is connected, the exchange side warp of energy accumulation current converter
It is electrically connected, and can not be electrically connected with DC side via divider resistance R, first switch circuit with DC side by second switch circuit.
In this way, energy accumulation current converter switches to the normal condition for carrying out charge and discharge to flow battery.
Further, after the signal of above-mentioned activation is sent, circuit control switch CM can also be disconnected, includes with cutting
The control circuit of control transformer and control loop is electrically connected with other composition components of energy accumulation current converter.In addition, in order to keep away
Exempt from maloperation, while disconnecting circuit control switch CM, tight guard's valve S can also be triggered1, controlled back with further disconnection
Road.
In the present embodiment, under the original state of flow battery, divider resistance can access circuit to adjust DC side
Electric current, realize to the precharge of flow battery to activate electrolyte, be pre-charged after the voltage of flow battery reaches preset value
Terminate, energy accumulation current converter can normally control flow battery and carry out charge and discharge cycles.In addition, first switch circuit and second is opened
The automatic switchover of flow battery precharge and normal charge and discharge may be implemented in the setting on powered-down road.Specifically, in the present embodiment
Energy accumulation current converter can be adapted for MW class all-vanadium flow battery, realize the activation of its initial zero-voltage state.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (8)
1. a kind of energy accumulation current converter, the energy accumulation current converter includes exchange side and DC side, and the DC side and flow battery are electric
The battery management system of connection, the energy accumulation current converter and the flow battery communicates to connect, it is characterised in that:
The energy accumulation current converter further include control circuit and set on it is described exchange side and the DC side between divider resistance,
First switch circuit and second switch circuit, wherein the control circuit and the first switch circuit, second switch electricity
The both ends of the second switch circuit are connected in parallel on after road electrical connection, the divider resistance and the series connection of first switch circuit；
After the energy accumulation current converter receives the flow battery that the battery management system is sent unactivated signal, institute
It states the control circuit control first switch circuit and is connected and controls the second switch circuit disconnection, the exchange side is via institute
State divider resistance, the first switch circuit is electrically connected with the DC side；
It is described after the energy accumulation current converter receives the signal for the flow battery activation that the battery management system is sent
Control circuit controls the first switch circuit and disconnects and control the second switch circuit conducting, and the exchange side is via described
Second switch circuit is electrically connected with the DC side.
2. energy accumulation current converter as described in claim 1, which is characterized in that the control circuit includes control transformer and control
The one end in circuit, the control transformer is electrically connected with the exchange side, and the other end is electrically connected with the control loop, the control
Circuit processed includes the second coil of the state of activation switch of electrical connection, the first coil of first contactor and second contactor, institute
The first main contacts for stating first contactor is connected in the first switch circuit, and the second main contacts of the second contactor connects
It connects in the second switch circuit；
The state of activation switch is closed in the unactivated signal of the battery management system transmission flow battery, is activated
Signal when disconnect；
After the state of activation closes the switch, the first coil is powered and first main contacts closure control described first
Switching circuit conducting, second coil is powered and second main contacts disconnects and controls the second switch circuit disconnection；
After the state of activation switch disconnects, the first coil power-off and first main contacts disconnection control described first
Switching circuit disconnects, second coil blackout and second main contacts closure control second switch circuit conducting.
3. energy accumulation current converter as claimed in claim 2, which is characterized in that the control loop further includes inching button, described
The auxiliary contact of first contactor are connected in parallel on the both ends of the inching button；
After the state of activation closes the switch and triggers the inching button, the first coil is powered, the first main touching
Point and auxiliary contact closure, the first main contacts closure control the first switch circuit conducting, and second coil is powered
And second main contacts, which disconnects, controls the second switch circuit disconnection.
4. energy accumulation current converter as claimed in claim 2, which is characterized in that the divider resistance is adjustable resistance.
5. energy accumulation current converter as claimed in claim 4, which is characterized in that the energy accumulation current converter further include be connected on it is described straight
Flow the current sensor of side；
The current sensor issues the instruction for increasing the divider resistance when the electric current detected is greater than pre-set current value.
6. energy accumulation current converter as claimed in claim 2, which is characterized in that the energy accumulation current converter further includes temperature sensor,
The temperature sensor issues alarm command when the temperature detected is greater than preset temperature.
7. energy accumulation current converter as claimed in claim 6, which is characterized in that the control loop further includes tightly stopping button, described
Tightly stop to disconnect the control loop after button receives the alarm command.
8. energy accumulation current converter as claimed in claim 2, which is characterized in that the energy accumulation current converter further includes being connected on the friendship
Flow the circuit control switch between side and the control transformer；
The circuit control switch is closed after the battery management system sends the unactivated signal of flow battery, is activated
Signal after disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362835.4A CN110120678B (en) | 2019-04-30 | 2019-04-30 | Energy storage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362835.4A CN110120678B (en) | 2019-04-30 | 2019-04-30 | Energy storage converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110120678A true CN110120678A (en) | 2019-08-13 |
| CN110120678B CN110120678B (en) | 2024-08-09 |
Family
ID=67520317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910362835.4A Active CN110120678B (en) | 2019-04-30 | 2019-04-30 | Energy storage converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110120678B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332449A (en) * | 2020-10-13 | 2021-02-05 | 芜湖泰伦特能源科技有限公司 | Microgrid grid-connected adjusting method |
| CN117154139A (en) * | 2023-10-27 | 2023-12-01 | 福建星云电子股份有限公司 | Flow battery activation device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006238509A (en) * | 2005-02-22 | 2006-09-07 | Panasonic Ev Energy Co Ltd | Control device of electric vehicle, control method of the electric vehicle, program and computer-readable recording medium |
| CN203180545U (en) * | 2013-04-09 | 2013-09-04 | 许继集团有限公司 | Energy storage deflector for liquid flow battery |
| CN106452110A (en) * | 2016-11-18 | 2017-02-22 | 广州智光电气股份有限公司 | Power conversion apparatus and microgrid |
| CN106451610A (en) * | 2016-09-09 | 2017-02-22 | 深圳市科陆电子科技股份有限公司 | Energy storage battery cluster control system and control method thereof |
| CN107482661A (en) * | 2017-09-07 | 2017-12-15 | 广州智光电气股份有限公司 | A kind of converter plant and redox flow battery energy storage system |
| CN108365659A (en) * | 2018-03-23 | 2018-08-03 | 中航锂电（洛阳）有限公司 | A kind of battery module parallel connection tooling and a kind of battery module parallel system |
| CN208585115U (en) * | 2018-06-26 | 2019-03-08 | 河南锂动电源有限公司 | A kind of lithium battery high voltage system being exclusively used in shield electric traction locomotive |
| CN209658914U (en) * | 2019-04-30 | 2019-11-19 | 上海电气集团股份有限公司 | Energy accumulation current converter |
-
2019
- 2019-04-30 CN CN201910362835.4A patent/CN110120678B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006238509A (en) * | 2005-02-22 | 2006-09-07 | Panasonic Ev Energy Co Ltd | Control device of electric vehicle, control method of the electric vehicle, program and computer-readable recording medium |
| CN203180545U (en) * | 2013-04-09 | 2013-09-04 | 许继集团有限公司 | Energy storage deflector for liquid flow battery |
| CN106451610A (en) * | 2016-09-09 | 2017-02-22 | 深圳市科陆电子科技股份有限公司 | Energy storage battery cluster control system and control method thereof |
| CN106452110A (en) * | 2016-11-18 | 2017-02-22 | 广州智光电气股份有限公司 | Power conversion apparatus and microgrid |
| CN107482661A (en) * | 2017-09-07 | 2017-12-15 | 广州智光电气股份有限公司 | A kind of converter plant and redox flow battery energy storage system |
| CN108365659A (en) * | 2018-03-23 | 2018-08-03 | 中航锂电（洛阳）有限公司 | A kind of battery module parallel connection tooling and a kind of battery module parallel system |
| CN208585115U (en) * | 2018-06-26 | 2019-03-08 | 河南锂动电源有限公司 | A kind of lithium battery high voltage system being exclusively used in shield electric traction locomotive |
| CN209658914U (en) * | 2019-04-30 | 2019-11-19 | 上海电气集团股份有限公司 | Energy accumulation current converter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332449A (en) * | 2020-10-13 | 2021-02-05 | 芜湖泰伦特能源科技有限公司 | Microgrid grid-connected adjusting method |
| CN117154139A (en) * | 2023-10-27 | 2023-12-01 | 福建星云电子股份有限公司 | Flow battery activation device and method |
| CN117154139B (en) * | 2023-10-27 | 2024-02-06 | 福建星云电子股份有限公司 | Flow battery activation device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110120678B (en) | 2024-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203056953U (en) | Driver and bus capacitor discharge circuit thereof | |
| WO2012097594A1 (en) | Battery protection device and method for dc power supply | |
| CN205753523U (en) | Energy storage battery pack charging and discharging control and detection device | |
| CN102280924B (en) | Uninterrupted power supply system for relay protection device | |
| CN104850021B (en) | A kind of power on/off system | |
| CN209658914U (en) | Energy accumulation current converter | |
| CN110932357A (en) | Energy storage device | |
| CN109301908A (en) | Quick charging system, charging method and aerial work equipment | |
| CN105514935A (en) | Undervoltage controller having time delay function and control method thereof | |
| CN110120678A (en) | Energy accumulation current converter | |
| CN111682626A (en) | BMS battery management system and management method suitable for energy storage cabinet | |
| CN104793135A (en) | Hybrid electric vehicle relay state detection circuit and method thereof | |
| CN211456735U (en) | High-voltage lithium battery power control circuit | |
| CN110531643A (en) | A kind of unmanned Automatic Guided Vehicle delay cut-off control system and method | |
| CN203434637U (en) | Energy storage system | |
| CN207939230U (en) | DC power supply panel accumulator over discharging protector | |
| CN110571888A (en) | battery pack control method and device and electrical equipment | |
| CN105262171A (en) | Battery charging protection control system and method | |
| CN108128173A (en) | For the protection circuit of super capacitor module | |
| CN211239354U (en) | Main loop control circuit of energy storage equipment | |
| CN104600763A (en) | Under-voltage protection circuit and lamp | |
| CN207410016U (en) | A kind of converter plant protective device | |
| CN208158173U (en) | A kind of battery charger adaptive circuit | |
| CN211957833U (en) | Battery equalization repairing system | |
| CN108448681A (en) | A kind of online method for detecting of the charger of battery management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231211 Address after: No. 8 Qianchuan Road, Chaohu Economic Development Zone, Hefei City, Anhui Province, 238014 Applicant after: Shanghai Electric (Anhui) energy storage technology Co.,Ltd. Address before: 30th Floor, No. 8 Xingyi Road, Changning District, Shanghai, 2003 Applicant before: Shanghai Electric Group Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |