WO2023101204A1 - Dc-dc 변환을 수행하는 전력 변환 장치 및 이를 포함하는 에너지 저장 시스템 - Google Patents
Dc-dc 변환을 수행하는 전력 변환 장치 및 이를 포함하는 에너지 저장 시스템 Download PDFInfo
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- WO2023101204A1 WO2023101204A1 PCT/KR2022/015583 KR2022015583W WO2023101204A1 WO 2023101204 A1 WO2023101204 A1 WO 2023101204A1 KR 2022015583 W KR2022015583 W KR 2022015583W WO 2023101204 A1 WO2023101204 A1 WO 2023101204A1
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- Prior art keywords
- converter
- battery
- output
- power conversion
- load
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 97
- 238000004146 energy storage Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract 1
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/0093—Converters characterised by their input or output configuration wherein the output is created by adding a regulated voltage to or subtracting it from an unregulated input
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- 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
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- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0018—Circuits for equalisation of charge between batteries using separate charge circuits
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/50—Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors
Definitions
- the present invention relates to a power conversion device that performs DC-DC conversion and an energy storage system including the same, and more particularly, to a DC-DC conversion for an input voltage input from a battery located between a series of batteries and a load. It relates to a power conversion device that performs and an energy storage system including the same.
- An energy storage system is a system that connects renewable energy, a battery that stores power, and existing system power.
- an energy storage system includes a battery section composed of a plurality of batteries, a battery management system (BMS) for battery management, and a power conversion device including a DC-DC converter and a DC-AC converter.
- BMS battery management system
- PCS PCS
- EMS Energy Management System
- Energy storage systems vary in output and capacity depending on the purpose of use.
- a plurality of battery systems may be connected in parallel with each other.
- a current imbalance occurs due to a voltage deviation between the modules, and thus, a power conversion device is required to control the current imbalance.
- the DC-DC converter in the power converter boosts the voltage input from the battery to a voltage level required by the load side in the battery discharge mode, and then supplies it to the load side.
- An object of the present invention to solve the above problems is to provide a power conversion device that performs DC-DC conversion with high convenience, high efficiency and low cost using a small DC-DC conversion device.
- Another object of the present invention to solve the above problems is to provide an energy storage system including a high-convenience, high-efficiency and low-cost power conversion device using a compact DC-DC converter.
- a power conversion device including a series of batteries and a DC-DC converter having an input connected to the output of the battery, the positive output of the DC-DC converter is connected to the load
- the negative output of the DC-DC converter is connected to the positive terminal of the battery, and the negative terminal of the battery is connected to the load.
- the sum of the first output of the DC-DC converter and the second output of the battery may be input to the load.
- the sum of the first output and the second output may be equal to the target power required from the load.
- the DC-DC converter may obtain the first output by converting the voltage input from the battery to DC-DC and boosting the voltage to a target voltage level.
- the power converter may further include a capacitor connected to an output of the DC-DC converter to accumulate at least one electric charge flowing through the DC-DC converter.
- the battery may be any one of a battery pack, a battery rack, a battery unit, and a battery cell.
- the load may be a power conversion system.
- the power conversion device may be included in an energy storage system.
- An energy storage system for achieving the above object is a power conversion device including a series of batteries and a DC-DC converter having an input connected to an output of the battery and connected to the power conversion device and a load. and a power conversion system for converting the DC output output by the power conversion device into an AC output according to the load, wherein the anode output of the DC-DC converter is connected to the load, and the DC-DC converter The negative output is connected to the positive terminal of the battery, and the negative terminal of the battery is connected to the load.
- a power conversion device performing DC-DC conversion and an energy storage system including the same include a DC-DC converter having a series of batteries and an input connected to an output of the battery, including: The positive output is connected to the load, the negative output of the DC-DC converter is connected to the positive terminal of the battery, and the negative terminal of the battery is connected to the load so that at least a portion of the power required by the load is connected to the battery without going through the DC-DC converter.
- the voltage level to be boosted by the DC-DC converter is lowered compared to the prior art in which all power required by the load is obtained from the battery and converted into a DC-DC converter, thereby increasing power conversion efficiency. Accordingly, It is possible to provide a high-efficiency and low-cost power conversion device and an energy storage system including the same, in which a volume is reduced and a cost is reduced because an additional configuration for power conversion efficiency is not required.
- FIG. 1 is a block diagram of an energy storage system to which the present invention can be applied.
- FIG. 2 is a circuit diagram of a conventional DC-DC converter.
- FIG. 3 is a circuit diagram of a power conversion device according to an embodiment of the present invention.
- FIG. 4 is a graph comparing DC-DC conversion loss according to battery output power between a power conversion device according to an experimental example of the present invention and a conventional DC-DC converter.
- FIG. 5 is a graph comparing DC-DC conversion loss according to battery output voltage between a power conversion device according to an experimental example of the present invention and a conventional DC-DC converter.
- capacitor P power converter
- first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.
- the term “and/or” includes any combination of a plurality of related listed items or any of a plurality of related listed items.
- FIG. 1 is a block diagram of an energy storage system to which the present invention can be applied.
- a battery that serves to store power in an energy storage system typically has a plurality of battery modules constituting a battery rack, and a plurality of battery racks constitute a battery bank. Bank) can be implemented in the form of constituting.
- the battery rack may be referred to as a battery pack according to a device or system in which batteries are used.
- Battery #N may be in the form of a battery pack or battery rack.
- a battery management system may be installed in each battery.
- the BMS can monitor the current, voltage, and temperature of each battery pack (or rack) it manages, calculate the SOC (Status Of Charge) based on the monitoring result, and control charging and discharging.
- SOC Status Of Charge
- a battery section controller may be installed in each battery section including a plurality of batteries and peripheral circuits and devices. Accordingly, the BSC can monitor and control control targets such as voltage, current, temperature, circuit breaker, etc. in the battery section.
- the power conversion system (PCS) installed in each battery section controls the charging and discharging of the battery by controlling the power supplied to the outside and the power supplied to the outside from the battery section, and may include a DC / AC inverter. there is.
- a power conversion system may have an input connected to a DC-DC converter and an output connected to a grid.
- the DC-DC converter is a device that boosts the DC voltage input from the battery, and may be provided as a bi-directional converter.
- the input of the DC-DC converter may be connected to the battery and the output of the DC-DC converter may be connected to the load.
- battery #1 is connected to DC-DC converter #1
- battery #2 is connected to DC-DC converter #2
- battery #N is connected to DC-DC #N.
- the output of the DC-DC converter corresponding to each battery is connected to the power conversion system (PCS) through a DC link.
- PCS power conversion system
- the DC-DC converter may DC-DC convert power stored in the battery in a discharge mode to a voltage level required by the PCS, that is, a DC link voltage, and output the DC-DC conversion.
- the DC-DC converter can convert the power output from the PCS into a voltage level required by the battery, that is, a charging voltage.
- FIG. 2 is a circuit diagram of a conventional DC-DC converter.
- a conventional DC-DC converter 30 used in an energy storage system may have an input terminal connected to the battery 10 and an output terminal connected to a load R.
- the load R may be a power conversion system (PCS).
- the conventional DC-DC converter 30 when power conversion from the battery 10 to the load R direction is performed, that is, when the battery 10 is in a discharge mode, the conventional DC-DC converter 30 performs the following [mathematics As shown in Equation 1], the input voltage (V battery ) output from the battery 10 may be boosted (V DCDC ) to a specific voltage level required by the load (R). Accordingly, the DC-DC converter 30 may transfer the output power P Output increased by boosting the input voltage to the load R.
- P Input is the input of the conventional DC-DC converter 30
- P Output is the output of the conventional DC-DC converter 30
- V battery is the first voltage input of the battery 10
- V DCDC may be the second voltage that is the output voltage boosted by the conventional DC-DC converter 30 .
- the load R requires a high voltage of 400V or more as an input voltage. Accordingly, since the conventional DC-DC converter 30 needs to perform high-capacity DC-DC conversion when converting power received from the battery 10, power loss occurs during output and power conversion efficiency decreases. occurred. In order to solve this problem, recently, high-spec components have been added to the conventional DC-DC converter 30 to increase power conversion efficiency. However, this has disadvantages in that the size of the DC-DC converter 30 is enlarged, making it difficult to utilize and increasing cost.
- the present invention proposes a power conversion device capable of high-efficiency DC-DC conversion with low capacity without requiring additional high-end components.
- a power conversion device according to an embodiment of the present invention will be described in more detail with reference to FIG. 3 below.
- FIG. 3 is a circuit diagram of a power conversion device according to an embodiment of the present invention.
- a power conversion device P may be a device that converts power between a battery 100 and a load R.
- the power conversion device P may be applied to an energy storage system (ESS).
- the load R may be a power conversion system.
- the power conversion device P may include a battery 100 , a DC-DC converter 300 and a capacitor 500 .
- the battery 100 is a device for storing at least one power, and may be provided with the same configuration as a conventional battery.
- the battery 100 may include any one of a battery pack, a battery rack, and a battery cell.
- the battery 100 may be connected to an input of a DC-DC converter 300 to be described later and deliver a first voltage (V battery ) to the DC-DC converter 300 .
- the battery 100 may have a positive terminal connected to the output of the DC-DC converter 300 through a first connection S 1 , and a negative terminal connected to a load R through a second connection S 2 . ) can be associated with Accordingly, the battery 100 can directly deliver the output of the battery 100 together with the output of the DC-DC converter 300 to the load R.
- the first connection (S 1 ) and the second connection (S 2 ) will be described in more detail when the DC-DC converter 300 is described below.
- the DC-DC converter 300 is provided as a bi-directional converter and may be connected to the battery 100 and the load R. Also, the DC-DC converter may be an isolated converter.
- the input (P Input ) of the DC-DC converter 300 may be connected to the output of the battery 100 . Accordingly, the DC-DC converter 300 obtains a second voltage (V DCDC ) obtained by boosting the first voltage (V battery ) output from the battery 100 to a specific voltage level as shown in [Equation 2] below. can do.
- V DCDC second voltage
- the output (P Output ) of the DC-DC converter 300 may be connected to the input of the load (R) through the battery 100 .
- the positive output of the DC-DC converter 300 may be connected to the positive terminal of the load R.
- the negative output of the DC-DC converter 300 is connected to the negative terminal of the load (R) through the input and output of the battery 100 by a first connection (S 1 ) and a second connection (S 2 ).
- the first connection S 1 may connect the negative terminal of the DC-DC converter 300 and the positive terminal of the battery 100 .
- the second connection (S 2 ) may connect the negative terminal of the battery 100 and the negative terminal of the load (R).
- the second output (P battery ) obtained by using the first voltage (V battery ) of the battery 100 may be output and transmitted to the load (R) (see [Equation 2]).
- P Input is the input of the DC-DC converter 300
- P Output is the output of the DC-DC converter 300
- V battery is the first voltage input of the battery 100
- V DCDC is DC- It may be the second voltage that is the output voltage boosted by the DC converter 300 .
- P DCDC may be a first output according to the second voltage of the DC-DC converter 300
- P battery may be a second output according to the first voltage of the DC-DC converter 300 .
- the sum of the first output (P DCDC ) and the second output (P battery ) may be equal to the target power value required from the load (R).
- the conventional DC-DC converter 30 boosts the input voltage V battery output from the battery 10 to the target voltage level required by the load R to the target power value P Output ) was output.
- the capacitor 500 may be connected to the output of the DC-DC converter 300. Accordingly, the capacitor 500 may accumulate at least one electric charge flowing through the DC-DC converter 300 . For example, the capacitor 500 may provide a current value (I) across the DC-DC converter 300 as in [Equation 2].
- the power conversion device performing DC-DC conversion and the energy storage system including the same according to an embodiment of the present invention have been described above.
- the battery voltage of 200V is boosted to 400V through DC-DC conversion for the remaining power except for some power obtained from a battery whose output voltage is 200V from the input power required from the load to output power A power conversion device was prepared.
- FIG. 4 is a graph comparing DC-DC conversion loss according to battery output power between a power conversion device according to an experimental example of the present invention and a conventional DC-DC converter.
- the power energy size (watt, W) of the DC-DC conversion loss of the power conversion device is smaller than that of the conventional DC-DC converter.
- FIG. 5 is a graph comparing DC-DC conversion loss according to battery output voltage between a power conversion device according to an experimental example of the present invention and a conventional DC-DC converter.
- a power conversion device performing DC-DC conversion and an energy storage system including the same include a DC-DC converter having a series of batteries and an input connected to an output of the battery, including: The positive output is connected to the load, the negative output of the DC-DC converter is connected to the positive terminal of the battery, and the negative terminal of the battery is connected to the load so that at least a portion of the power required by the load is connected to the battery without going through the DC-DC converter.
- the voltage level to be boosted by the DC-DC converter is lowered compared to the prior art in which all power required by the load is obtained from the battery and converted into a DC-DC converter, thereby increasing power conversion efficiency. Accordingly, It is possible to provide a high-efficiency and low-cost power conversion device and an energy storage system including the same, in which a volume is reduced and a cost is reduced because an additional configuration for power conversion efficiency is not required.
- a computer-readable recording medium includes all types of recording devices in which data that can be read by a computer system is stored.
- computer-readable recording media may be distributed to computer systems connected through a network to store and execute computer-readable programs or codes in a distributed manner.
- the computer-readable recording medium may include hardware devices specially configured to store and execute program instructions, such as ROM, RAM, and flash memory.
- the program command may include high-level language codes that can be executed by a computer using an interpreter or the like as well as machine code generated by a compiler.
- a block or apparatus corresponds to a method step or feature of a method step.
- aspects described in the context of a method may also be represented by a corresponding block or item or a corresponding feature of a device.
- Some or all of the method steps may be performed by (or using) a hardware device such as, for example, a microprocessor, programmable computer, or electronic circuitry. In some embodiments, one or more of the most important method steps may be performed by such an apparatus.
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- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims (9)
- 일련의 배터리; 및상기 배터리의 출력과 연결된 입력을 갖는 DC-DC 컨버터를 포함하는 전력 변환 장치에 있어서,상기 DC-DC 컨버터의 양극 출력은 부하와 연결되고,상기 DC-DC 컨버터의 음극 출력은 상기 배터리의 양극 단자와 연결되며,상기 배터리의 음극 단자는 상기 부하와 연결되는, 전력 변환 장치.
- 청구항 1에 있어서,상기 DC-DC 컨버터의 제1 출력과 상기 배터리의 제2 출력의 합이 상기 부하에 입력되는, 전력 변환 장치.
- 청구항 2에 있어서,상기 제1 출력과 제2 출력의 합은 상기 부하로부터 요구되는 목표 전력과 동일한, 전력 변환 장치.
- 청구항 2에 있어서,상기 DC-DC 컨버터는,상기 배터리로부터 입력된 전압을 DC-DC 변환하여, 목표 전압 레벨로 승압시키므로써 상기 제1 출력을 획득하는, 전력 변환 장치.
- 청구항 1에 있어서,상기 DC-DC 컨버터의 출력과 연결되어, 상기 DC-DC 컨버터에 흐르는 적어도 하나의 전하를 축적시키는 캐패시터를 더 포함하는, 전력 변환 장치.
- 청구항 1에 있어서,상기 배터리는,배터리 팩(Pack), 배터리 랙(Rack) 및 배터리 셀(cell) 중 어느 하나를 포함하는, 전력 변환 장치.
- 청구항 1에 있어서,상기 부하는 전력 변환 시스템(Power Conversion System)인, 전력 변환 장치.
- 청구항 1에 있어서,상기 전력 변환 장치는 에너지 저장 시스템(Energy storage system)에 포함되는, 전력 변환 장치.
- 일련의 배터리 및 상기 배터리의 출력과 연결된 입력을 갖는 DC-DC 컨버터를 포함하는 전력 변환 장치; 및상기 전력 변환 장치 및 부하와 연결되어, 상기 전력 변환 장치에 의해 출력된 DC 출력을 상기 부하에 맞게 AC 출력으로 변환하는 전력 변환 시스템을 포함하되,상기 DC-DC 컨버터의 양극 출력은 상기 부하와 연결되고,상기 DC-DC 컨버터의 음극 출력은 상기 배터리의 양극 단자와 연결되며,상기 배터리의 음극 단자는 상기 부하와 연결되는, 에너지 저장 시스템.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2023571369A JP2024519591A (ja) | 2021-12-03 | 2022-10-14 | Dc-dc変換を行う電力変換装置及びこれを含むエネルギー貯蔵システム |
US18/290,261 US20240235365A1 (en) | 2021-12-03 | 2022-10-14 | Power conversion device for performing dc-dc conversion, and energy storage system including same |
CN202280035780.6A CN117321875A (zh) | 2021-12-03 | 2022-10-14 | 用于执行dc/dc转换的电力转换装置及具有电力转换装置的储能系统 |
EP22901564.9A EP4333247A1 (en) | 2021-12-03 | 2022-10-14 | Power conversion device for performing dc-dc conversion, and energy storage system including same |
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KR1020210171671A KR20230083555A (ko) | 2021-12-03 | 2021-12-03 | Dc-dc 변환을 수행하는 전력 변환 장치 및 이를 포함하는 에너지 저장 시스템 |
KR10-2021-0171671 | 2021-12-03 |
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PCT/KR2022/015583 WO2023101204A1 (ko) | 2021-12-03 | 2022-10-14 | Dc-dc 변환을 수행하는 전력 변환 장치 및 이를 포함하는 에너지 저장 시스템 |
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US (1) | US20240235365A1 (ko) |
EP (1) | EP4333247A1 (ko) |
JP (1) | JP2024519591A (ko) |
KR (1) | KR20230083555A (ko) |
CN (1) | CN117321875A (ko) |
WO (1) | WO2023101204A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11299121A (ja) * | 1998-04-09 | 1999-10-29 | Nec Corp | バッテリ放電防止回路 |
JP2010284064A (ja) * | 2009-06-08 | 2010-12-16 | Toyota Industries Corp | 車両用電源装置 |
KR20160019237A (ko) * | 2014-08-11 | 2016-02-19 | 조주현 | 배터리 방전 제어방법 및 장치 |
KR101855451B1 (ko) * | 2015-11-09 | 2018-05-04 | 에이치엘비파워(주) | 셀 밸런싱 기능이 있는 셀 모듈을 갖는 배터리팩 |
WO2021209613A1 (en) * | 2020-04-16 | 2021-10-21 | Lithium Balance A/S | A dc-dc converter assembly |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101355339B1 (ko) | 2012-10-30 | 2014-02-05 | 엘에스산전 주식회사 | 양방향 디시-디시 컨버터 제어 장치 및 그 제어 방법 |
-
2021
- 2021-12-03 KR KR1020210171671A patent/KR20230083555A/ko active Search and Examination
-
2022
- 2022-10-14 CN CN202280035780.6A patent/CN117321875A/zh active Pending
- 2022-10-14 EP EP22901564.9A patent/EP4333247A1/en active Pending
- 2022-10-14 WO PCT/KR2022/015583 patent/WO2023101204A1/ko active Application Filing
- 2022-10-14 JP JP2023571369A patent/JP2024519591A/ja active Pending
- 2022-10-14 US US18/290,261 patent/US20240235365A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11299121A (ja) * | 1998-04-09 | 1999-10-29 | Nec Corp | バッテリ放電防止回路 |
JP2010284064A (ja) * | 2009-06-08 | 2010-12-16 | Toyota Industries Corp | 車両用電源装置 |
KR20160019237A (ko) * | 2014-08-11 | 2016-02-19 | 조주현 | 배터리 방전 제어방법 및 장치 |
KR101855451B1 (ko) * | 2015-11-09 | 2018-05-04 | 에이치엘비파워(주) | 셀 밸런싱 기능이 있는 셀 모듈을 갖는 배터리팩 |
WO2021209613A1 (en) * | 2020-04-16 | 2021-10-21 | Lithium Balance A/S | A dc-dc converter assembly |
Also Published As
Publication number | Publication date |
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KR20230083555A (ko) | 2023-06-12 |
EP4333247A1 (en) | 2024-03-06 |
CN117321875A (zh) | 2023-12-29 |
US20240235365A1 (en) | 2024-07-11 |
JP2024519591A (ja) | 2024-05-17 |
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