CN105790326A - Initial charging circuit for flow battery - Google Patents
Initial charging circuit for flow battery Download PDFInfo
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- CN105790326A CN105790326A CN201410798016.1A CN201410798016A CN105790326A CN 105790326 A CN105790326 A CN 105790326A CN 201410798016 A CN201410798016 A CN 201410798016A CN 105790326 A CN105790326 A CN 105790326A
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Abstract
The invention discloses an initial charging circuit for a flow battery. The initial charging circuit comprises a power grid unit, a transformer unit, an uncontrolled rectifier unit, a switch switching unit, an inverter power unit and the flow battery. According to the initial charging circuit for the flow battery, the voltage of the flow battery is adjusted to a first preset voltage through the uncontrolled rectifier unit; further voltage reduction on a low-voltage AC output by the transformer unit at one side of a power distribution station can be further achieved through the switch switching unit; and the switch switching unit is small in volume, low in cost and stable in performance. Compared with the prior art, voltage reduction can be achieved without arranging a step-down transformer on a consumer side.
Description
Technical field
The present invention relates to electronic applications, particularly relate to flow battery initial charging circuit.
Background technology
Along with the large area of distributed power source uses, cause that the unstable factor of electrical network gets more and more.Current large-scale energy storage system contributes to stablizing of electrical network, realizes the peak load shifting effect of electrical network simultaneously.Redox flow battery energy storage system, owing to having the advantages such as scale is big, life-span length, response is fast, maintenance cost is low, is applied to large-scale power energy storage widely.
Compared with conventional batteries, the initial voltage of flow battery is close to 0 volt, it is necessary to first carry out initial charge, reaches the machine that the opens threshold voltage of current transformer, and current transformer could normal operation.This requirement substantially increases current transformer and is designed to complexity.At present on the market, for the main all current transformer transformer pressure-reducings charging of the charging of flow battery and AC/DC, DC/DC two-stage circuit initial charge.But the method structure is complicated, and the device volume adopted is huge, cost is also costly.
Summary of the invention
It is an object of the invention to provide a kind of flow battery initial charging circuit, the cost that the charging circuit in order to solve prior art adopts step-down transformer or AC/DC, DC/DC two-stage circuit and causes increases, the problem that the volume of circuit increases.
The present invention provides a kind of flow battery initial charging circuit, including: power supply unit, uncontrollable rectifier unit, switch switching unit, inverter power unit and flow battery；Said supply unit includes electrical network unit and transformer unit；Described electrical network unit is used for described transformer unit conveying high-pressure alternating current；Described transformer unit is connected with described electrical network unit and described switch switching unit respectively, and described transformer unit for being transformed to low-voltage AC by described High Level AC Voltage, and described low-voltage AC is delivered to described inverter power unit；Described uncontrollable rectifier unit is connected with described flow battery and described switch switching unit and described inverter power unit respectively, described uncontrollable rectifier unit is for setting up the floating pressure of described flow battery, making described floating pressure reach the first predeterminated voltage, described first predeterminated voltage is described inverter power unit outfan can be the voltage of described flow battery charging；Described transformer unit includes the first outfan, the second outfan, the 3rd outfan and middle phase output terminal, and the input of described inverter power unit includes first input end, the second input, the 3rd input；Described switch switching unit is for controlling switching on and off between described first outfan and described first input end, switching on and off between described second outfan and described second input, switching on and off and being switched on or switched off of described middle phase input and in described first input end, described second input, described 3rd input between described 3rd outfan and described 3rd input.
Flow battery initial charging circuit as above, preferably, described uncontrollable rectifier unit includes uncontrollable rectifier bridge and initial charge resistance, described uncontrollable rectifier bridge is connected with described switch switching unit and described initial charge resistance respectively, described initial charge resistance is connected with described liquid phase battery and described inverter respectively, described uncontrollable rectifier bridge is unidirectional current for the convert alternating current exported by described transformer unit, and described initial charge resistance is for preventing the output electric current of described uncontrollable rectifier unit from exceeding predetermined current.
Flow battery initial charging circuit as above, it is preferable that also include: key control unit, described key control unit is connected with described switch switching unit, for controlling the switching of described switch switching unit breaker in middle.
Flow battery initial charging circuit as above, preferably, described key control unit is also connected with described inverter power unit, and whether the input terminal voltage for detecting described inverter power unit reaches described second predeterminated voltage, whether the output end voltage of described inverter power unit reaches described first predeterminated voltage or whether the ratio of described input terminal voltage and described output end voltage meets pre-conditioned.
nullFlow battery initial charging circuit as above，Preferably，Described switch control unit includes the first switch、Second switch and the 3rd switch，Described first switch is connected between described inverter power unit and described transformer unit，For controlling switching on and off between described first outfan and described first input end、Switching on and off between described second outfan and described second input、Switching on and off between described 3rd outfan and described 3rd input，Described second switch is connected between described transformer unit and described inverter power unit，For controlling described middle phase output terminal and described first input end、Described second input、In described 3rd input one is switched on or switched off，Described 3rd switch is connected between described transformer unit and described uncontrollable rectifier unit，For controlling being switched on or switched off between described transformer unit and described uncontrollable rectifier unit.
Flow battery initial charging circuit as above, it is preferable that also including electric capacity, described electric capacity is connected with described inverter power unit and described flow battery respectively, for stablizing the input current of described flow battery.
Flow battery initial charging circuit as above, it is preferable that described inverter power unit includes the three-phase brachium pontis that 6 full control master switchs with anti-paralleled diode are constituted.
Flow battery initial charging circuit as above, it is preferable that also including filter cell, described filter cell is connected with described switch switching unit and described inverter power unit respectively.
Flow battery initial charging circuit as above, preferably, described filter cell includes three-phase filter reactor and three-phase filter capacitor, and wherein said three-phase filter reactor is connected with described inverter power unit, and described three-phase filter capacitor is connected with described switch switching unit.
Flow battery initial charging circuit provided by the invention, blood pressure lowering is realized without arranging step-down transformer in user side, by uncontrollable rectifier unit by the Voltage Cortrol of flow battery to the first predeterminated voltage, the further blood pressure lowering of low-voltage AC that the transformer unit to power distribution station side exports can be realized further by switch switching unit, switch switching unit volume is little, cost is low, stable performance.
Accompanying drawing explanation
Fig. 1 is the flow battery initial charging circuit structural representation of the embodiment of the present invention；
Fig. 2 be the embodiment of the present invention flow battery initial charging circuit in transformer unit outfan schematic diagram；
Fig. 3 is the flow battery initial charging circuit structural representation of another embodiment of the present invention；
Fig. 4 is the structural representation of the filter cell of another embodiment of the present invention.
Detailed description of the invention
Fig. 1 is the flow battery initial charging circuit structural representation of the embodiment of the present invention.As it is shown in figure 1, the flow battery initial charging circuit that the present embodiment provides includes: power supply unit 11, uncontrollable rectifier unit 3, switch switching unit 4, inverter power unit 5 and flow battery 6.
Wherein, flow battery 6 can include all-vanadium flow battery, sulfur sode cell etc., power supply unit 11 includes electrical network unit 1 and transformer unit 2, electrical network unit 1 and transformer unit 2 are respectively positioned on power distribution station, electrical network unit 1 is used for transformer unit 2 conveying high-pressure alternating current, transformer unit 2 is connected with electrical network unit 1 and switch switching unit 4 respectively, and transformer unit 2 for being transformed to low-voltage AC by High Level AC Voltage, and this low-voltage AC is delivered to inverter power unit 5.Specifically, 35kV High Level AC Voltage is inputted to transformer unit 2 by electrical network unit 1, and transformer unit 2 is exported by power distribution station after 35KV High Level AC Voltage is transformed to 315V low-voltage AC, by this AC low-tension electricity input to inverter power unit 5.
Uncontrollable rectifier unit 3 is connected with flow battery 6, switch switching unit 4, inverter power unit 5 respectively, uncontrollable rectifier unit 3 is for setting up the floating pressure of flow battery 6, this floating pressure is made to reach the first predeterminated voltage, this first predeterminated voltage is the DC voltage threshold values meeting inverter power unit 5 energy normal operation, wherein, this floating pressure is floating pressure in short-term, and namely once uncontrollable rectifier unit 3 and flow battery 6 disconnect, then this floating pressure cannot continue to keep.
Being charged being divided into initial charge pattern and normal charge mode to flow battery 6, wherein, initial charge pattern includes: uncontrollable rectifier stage and power conversion stages.
Concrete, power distribution station export low-voltage AC be flow battery 6 carry out initial charge time, in order to make inverter power unit 5 normal operation, first have to utilize uncontrollable rectifier unit 3 by the Voltage Cortrol of flow battery 6 to the first predeterminated voltage.Specifically, switch switching unit 4 switches to uncontrollable rectifier unit 3 and connects, and inverter power unit 5 disconnects, and after uncontrollable rectifier unit 3 is by the Voltage Cortrol of flow battery 6 to the first predeterminated voltage, the uncontrollable rectifier stage terminates.
Further, owing to uncontrollable rectifier unit 3 cannot charge for flow battery 6 for a long time, now switch switching unit 4 switches over, and is connected by inverter power unit 5, and power conversion stages starts.Again uncontrollable rectifier unit 3 is disconnected.
Inverter power unit 5 and transformer unit 2 are connected, and transformer unit 2 includes the first outfan the 211, second outfan the 212, the 3rd outfan 213 and middle phase output terminal 214.As shown in Figure 2, the input of inverter power unit 5 includes first input end the 511, second input the 512, the 3rd input 513, specifically, frequency is identical, amplitude is equal, the alternating voltage of phase place mutual deviation 120 degree successively to export three between first outfan the 211, second outfan 212 and the 3rd outfan 213 of transformer unit 2, wherein, inverter power unit 5 includes the three-phase brachium pontis that 6 full control master switchs with anti-paralleled diode are constituted.
Switch switching unit 4 is for controlling switching on and off between the first outfan 211 and first input end 511, switching on and off between the second outfan 212 and the second input 512, switching on and off and being switched on or switched off of middle phase output terminal 214 and in first input end the 511, second input the 512, the 3rd input 513 between the 3rd outfan 213 and the 3rd input 513.Wherein, switch switching unit 4 can include the isolation switch of at least one, chopper or catalyst.
Power conversion stages at flow battery initial charge process, further the low-voltage AC of transformer unit 2 output is carried out blood pressure lowering, switch switching unit 4 can be passed through switch over, reduce the low-voltage AC of transformer unit 2 output, to meet the inverter power unit 5 voltage request at the input of initial charging phase.
nullSpecifically，Switch switching unit 4 controls the connection between the 3rd outfan 213 and the 3rd input 513 and middle phase input 214 and first input end 511、Second input 512、The connection of in the 3rd input 513，The present embodiment is connected with the 3rd outfan 213 and the 3rd input 513，Middle phase output terminal 214 and the second input 512 are connected and are illustrated for example，Certainly，When practical application，As long as any one end in other inputs of the middle phase output terminal 214 of transformer unit 2 and transformer unit 2 carries out connecting with any two ends in the input of inverter power unit 5 respectively，Can ensure that the voltage being input to inverter power unit 5 is minimized，Specifically，The voltage being input to inverter power unit 5 after this reduction is single-phase alternating current.
After obtaining the single-phase alternating current that above-mentioned magnitude of voltage reduces, inverter power unit 5 proceeds by the power conversion of initial charge, this single-phase alternating current is transformed to unidirectional current, carry out power conversion, initial charge is carried out for flow battery 6, after the voltage of flow battery 6 reaches a certain threshold value, initial charging phase terminates.nullIn use procedure after flow battery，Owing to the voltage in flow battery 6 can the DC voltage of normal operation more than inverter power unit 5，Therefore without the further blood pressure lowering of voltage to the low-voltage AC that transformer unit 2 exports，Hereafter，The charging of flow battery 6 enters normal charge mode，Namely switch switching unit 4 is utilized to switch over，Control uncontrollable rectifier unit 3 to disconnect，Middle phase input 214 and the second input 512 disconnect，First outfan 211 and first input end 511、Second outfan 212 and the second input 512、3rd outfan 213 and the 3rd outfan 513 are connected，As long as the ratio of the output end voltage of the input terminal voltage of inverter power unit 5 and inverter power unit 5 meets pre-conditioned，The i.e. working condition of inverter power unit 5，Carry out normal discharge and recharge.As long as it should be noted that flow battery 6 is in actual use, cell voltage, more than the first predeterminated voltage, all utilizes normal charge mode to be charged.
Flow battery initial charging circuit provided by the invention, compared with prior art, blood pressure lowering is realized without arranging step-down transformer in user side, by uncontrollable rectifier unit 3 by the Voltage Cortrol of flow battery 6 to the first predeterminated voltage, the further blood pressure lowering of low-voltage AC that the transformer unit 2 to power distribution station side exports can be realized further by switch switching unit 4, switch switching unit 4 volume is little, and cost is low, stable performance.
On the basis of above-described embodiment, in order to prevent big electric current from can damage flow battery 6, it is possible to arrange resistance in uncontrollable rectifier unit 3.
nullConcrete，As shown in Figure 3，Uncontrollable rectifier unit 3 includes uncontrollable rectifier bridge 31 and initial charge resistance 32，Uncontrollable rectifier bridge 31 is connected with switch switching unit 4 and initial charge resistance 32 respectively，Initial charge resistance 32 is connected with flow battery 6 and inverter power unit 5 respectively，Uncontrollable rectifier bridge 31 is unidirectional current for the convert alternating current exported by transformer unit 2，Initial charge resistance 31 is for preventing the output electric current of uncontrollable rectifier unit 3 from exceeding predetermined current，The resistance of initial charge resistance 31 can be configured according to demand，As long as ensureing that cell voltage reaches the first predeterminated voltage，Metering function can be played，Fusing resistor (not shown) further can also be set，When reasons such as faults，When the electric current of uncontrollable rectifier bridge 31 output is more than a certain predetermined current，Fusing resistor fuses，Thus preventing big electric current for the impact of flow battery，Damage flow battery.
Preferably, flow battery initial charging circuit also includes: key control unit 7.This key control unit 7 is connected with switch switching unit 4, for controlling the switching of switch switching unit 4 breaker in middle.nullConcrete，Switch control unit 4 includes the first switch 41、Second switch 42 and the 3rd switch 43，First switch 41 is connected between inverter power unit 5 and transformer unit 2，For controlling switching on and off between the first outfan 211 and first input end 511、Switching on and off between the second outfan 212 and the second input 512、Switching on and off between the 3rd outfan 213 and the 3rd input 513，Second switch 42 is connected between transformer unit 2 and inverter power unit 5，For phase input 214 in controlling and first input end 211、Second input 212、In 3rd input 213 one is switched on or switched off，3rd switch 41 is connected between transformer unit 2 and uncontrollable rectifier unit 3，For controlling being switched on or switched off between transformer unit 2 and uncontrollable rectifier unit 3.
Key control unit 7 is also connected with inverter power unit 5, whether reaches the second predeterminated voltage for the input terminal voltage detecting inverter power unit 5, whether the output end voltage of inverter power unit 5 reaches the ratio of the first predeterminated voltage or input terminal voltage and output end voltage whether meets pre-conditioned.
Concrete, the uncontrollable rectifier stage in initial charge, key control unit 7 controls the 3rd switch 43 connection, first switch 41 and second switch 42 all disconnect, convert alternating current is unidirectional current by uncontrollable rectifier unit 3, key control unit 7 is also connected with flow battery 6, for whether detecting uncontrollable rectifier unit 3 in power conversion stages by the Voltage Cortrol of flow battery 6 to the first predeterminated voltage, when the Voltage Cortrol of flow battery 6 is to after the first predeterminated voltage, the input of inverter power unit 5 need to adjust to the second predeterminated voltage, the i.e. further blood pressure lowering of voltage to transformer unit 2 output, then key control unit 7 controls the first switch 41 and the 3rd switch 43 disconnection, second switch 42 is connected, now power conversion stages starts.When after initial charging complete, flow battery 6 enters normal charge mode, then key control unit 7 controls second switch the 42, the 3rd switch 43 disconnection, first switch 41 connection, whether the ratio of input terminal voltage Yu output end voltage for detecting inverter power unit 5 meets pre-conditioned, namely meets the working condition of inverter power unit 5.
Further, flow battery initial charging circuit also includes electric capacity C1, and electric capacity C1 is connected with inverter power unit 5 and flow battery 6 respectively, for stablizing the input current of described flow battery, filters the clutter component in power supply process.
Flow battery initial charging circuit also includes filter cell 8, and filter cell 8 is connected with switch switching unit 4 and inverter power unit 5 respectively.Filter cell 8 is for being filtered processing to the output electric current of inverter power unit 5.Wherein, filter cell 8 includes three-phase filter reactor and three-phase filter capacitor, and three-phase filter reactor connects three-phase filter capacitor, and wherein three-phase filter reactor is connected with inverter power unit 5, and three-phase filter capacitor is connected with switch switching unit 4.Concrete, Fig. 4 is the structural representation of the filter cell of another embodiment of the present invention, as shown in Figure 4, three-phase filter reactor includes the first filter reactor 811, second filter reactor 812, 3rd filter reactor 813, one end of first filter reactor 811 is connected with first input end 511, one end of second filter reactor 812 is connected with the second input 512, one end of 3rd filter reactor 813 is connected with the 3rd input 513, first filter reactor 811, second filter reactor 812, the other end of the 3rd filter reactor 813 is connected with switch switching unit 4.Three-phase filter capacitor includes: first filter capacitor the 821, second filter capacitor the 822, the 3rd filter capacitor 823, one end of first filter capacitor 821 is connected between the first filter reactor 811 and switch switching unit 4, one end of second filter capacitor 812 is connected between the second filter reactor 812 and switch switching unit 4, one end of 3rd filter capacitor 813 is connected between the 3rd filter reactor 813 and switch switching unit 4, and the other end of first filter capacitor the 821, second filter capacitor the 822, the 3rd filter capacitor 823 is connected with each other by wire.
Flow battery initial charging circuit provided by the invention, by core controller 7, switch switching unit 4 is controlled, the further blood pressure lowering of the low-voltage AC that the transformer unit 2 to power distribution station side exports is achieved by second switch 42, the input terminal voltage making inverter power unit 5 meets the second predeterminated voltage, without arranging volume and the big step-down transformer of cost, cost and stable performance are saved, it is simple to safeguard.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a flow battery initial charging circuit, it is characterised in that including: power supply unit, uncontrollable rectifier unit, switch switching unit, inverter power unit and flow battery；
Said supply unit includes electrical network unit and transformer unit；
Described electrical network unit is used for described transformer unit conveying high-pressure alternating current；
Described transformer unit is connected with described electrical network unit and described switch switching unit respectively, and described transformer unit for being transformed to low-voltage AC by described High Level AC Voltage, and described low-voltage AC is delivered to described inverter power unit；
Described uncontrollable rectifier unit is connected with described flow battery and described switch switching unit and described inverter power unit respectively, described uncontrollable rectifier unit is for setting up the floating pressure of described flow battery, making described floating pressure reach the first predeterminated voltage, described first predeterminated voltage is described inverter power unit outfan can be the voltage of described flow battery charging；
Described transformer unit includes the first outfan, the second outfan, the 3rd outfan and middle phase output terminal, and the input of described inverter power unit includes first input end, the second input, the 3rd input；
Described switch switching unit is for controlling switching on and off between described first outfan and described first input end, switching on and off between described second outfan and described second input, switching on and off and being switched on or switched off of described middle phase input and in described first input end, described second input, described 3rd input between described 3rd outfan and described 3rd input.
2. flow battery initial charging circuit according to claim 1, it is characterized in that, described uncontrollable rectifier unit includes uncontrollable rectifier bridge and initial charge resistance, described uncontrollable rectifier bridge is connected with described switch switching unit and described initial charge resistance respectively, described initial charge resistance is connected with described liquid phase battery and described inverter respectively, described uncontrollable rectifier bridge is unidirectional current for the convert alternating current exported by described transformer unit, and described initial charge resistance is for preventing the output electric current of described uncontrollable rectifier unit from exceeding predetermined current.
3. flow battery initial charging circuit according to claim 1, it is characterised in that also including: key control unit, described key control unit is connected with described switch switching unit, for controlling the switching of described switch switching unit breaker in middle.
4. flow battery initial charging circuit according to claim 1, it is characterized in that, described key control unit is also connected with described inverter power unit, and whether the input terminal voltage for detecting described inverter power unit reaches described second predeterminated voltage, whether the output end voltage of described inverter power unit reaches described first predeterminated voltage or whether the ratio of described input terminal voltage and described output end voltage meets pre-conditioned.
null5. flow battery initial charging circuit according to claim 1，It is characterized in that，Described switch control unit includes the first switch、Second switch and the 3rd switch，Described first switch is connected between described inverter power unit and described transformer unit，For controlling switching on and off between described first outfan and described first input end、Switching on and off between described second outfan and described second input、Switching on and off between described 3rd outfan and described 3rd input，Described second switch is connected between described transformer unit and described inverter power unit，For controlling described middle phase output terminal and described first input end、Described second input、In described 3rd input one is switched on or switched off，Described 3rd switch is connected between described transformer unit and described uncontrollable rectifier unit，For controlling being switched on or switched off between described transformer unit and described uncontrollable rectifier unit.
6. flow battery initial charging circuit according to claim 1, it is characterised in that also including electric capacity, described electric capacity is connected with described inverter power unit and described flow battery respectively, for stablizing the input current of described flow battery.
7. flow battery initial charging circuit according to claim 1, it is characterised in that described inverter power unit includes the three-phase brachium pontis that 6 full control master switchs with anti-paralleled diode are constituted.
8. flow battery initial charging circuit according to claim 1, it is characterised in that also including filter cell, described filter cell is connected with described switch switching unit and described inverter power unit respectively.
9. flow battery initial charging circuit according to claim 8, it is characterized in that, described filter cell includes three-phase filter reactor and three-phase filter capacitor, described three-phase filter reactor connects described three-phase filter capacitor, wherein said three-phase filter reactor is connected with described inverter power unit, and described three-phase filter capacitor is connected with described switch switching unit.
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| CN201410798016.1A CN105790326A (en) | 2014-12-18 | 2014-12-18 | Initial charging circuit for flow battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410798016.1A CN105790326A (en) | 2014-12-18 | 2014-12-18 | Initial charging circuit for flow battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492943A (en) * | 2017-08-18 | 2017-12-19 | 上海电气集团股份有限公司 | Electric battery electrifier |
| WO2023027643A3 (en) * | 2021-08-27 | 2023-05-11 | V-Flow Tech Pte. Ltd. | Flow battery charging initiation method, controller for flow battery system and flow battery system |
| CN117728544A (en) * | 2024-02-07 | 2024-03-19 | 液流储能科技有限公司 | Direct current converging circuit and method for liquid flow energy storage new energy battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008228408A (en) * | 2007-03-09 | 2008-09-25 | Sony Corp | Battery pack, charger and charging method |
| CN103259059A (en) * | 2013-04-17 | 2013-08-21 | 大连尚能科技发展有限公司 | Initial charging method of flow battery and circuit |
-
2014
- 2014-12-18 CN CN201410798016.1A patent/CN105790326A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008228408A (en) * | 2007-03-09 | 2008-09-25 | Sony Corp | Battery pack, charger and charging method |
| CN103259059A (en) * | 2013-04-17 | 2013-08-21 | 大连尚能科技发展有限公司 | Initial charging method of flow battery and circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492943A (en) * | 2017-08-18 | 2017-12-19 | 上海电气集团股份有限公司 | Electric battery electrifier |
| WO2023027643A3 (en) * | 2021-08-27 | 2023-05-11 | V-Flow Tech Pte. Ltd. | Flow battery charging initiation method, controller for flow battery system and flow battery system |
| CN117728544A (en) * | 2024-02-07 | 2024-03-19 | 液流储能科技有限公司 | Direct current converging circuit and method for liquid flow energy storage new energy battery |
| CN117728544B (en) * | 2024-02-07 | 2024-05-14 | 液流储能科技有限公司 | Direct current converging circuit and method for liquid flow energy storage new energy battery |
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