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公开(公告)号:EP3879662A1
公开(公告)日:2021-09-15
申请号:EP21160478.0
申请日:2021-03-03
发明人: Chen, Li , Wang, Changyong , Lu, Yansong , Qiu, Aibin
摘要: A high-voltage DC transformation apparatus (1), a power system and a control method of the power system. The high-voltage DC transformation apparatus (1) is electrically connected to at least one high-voltage DC power generator (2). The high-voltage DC transformation apparatus (1) includes at least one bidirectional AC/DC conversion module (11), at least one first transformer (12) and at least one unidirectional rectifier module (13). A DC terminal of the bidirectional AC/DC conversion module (11) is electrically connected to the corresponding high-voltage DC power generator (2). The first transformer (12) includes a first transmission terminal and a second transmission terminal. The first transmission terminal is electrically connected to an AC terminal of the corresponding bidirectional AC/DC conversion module (11). The unidirectional rectifier module (13) includes an input terminal and an output terminal. The input terminal is electrically connected to the second transmission terminal of the corresponding first transformer (12), and the output terminal is electrically connected to a high-voltage grid (3).
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公开(公告)号:EP3879663A1
公开(公告)日:2021-09-15
申请号:EP21160485.5
申请日:2021-03-03
发明人: Chen, Li , Wang, Changyong , Lu, Yansong , Qiu, Aibin
IPC分类号: H02J3/36 , H02J1/00 , H02J1/10 , H02J3/38 , H02J7/34 , H02M1/00 , H02M3/335 , H02M7/483 , H02J3/32 , H02M3/28 , H02M7/23 , H02M7/25 , H02M7/493
摘要: An energy storage device (1) for a power system (2) is provided. The energy storage device (1) is electrically connected with a high voltage DC transmission grid (21). The energy storage device (1) includes at least one energy storage element (10), at least one bidirectional inverter module (11), at least one medium frequency transformer (12) and at least one bidirectional AC/DC conversion module (13). A DC terminal of each bidirectional inverter module (11) is electrically connected with the corresponding energy storage element (10). A first transmission terminal of each medium frequency transformer (12) is electrically connected with an AC terminal of the corresponding bidirectional inverter module (11). An AC terminal of each bidirectional AC/DC conversion module (13) is electrically connected with a second transmission terminal of the corresponding medium frequency transformer (12). A DC terminal of each bidirectional AC/DC conversion module (13) is electrically connected with the high voltage DC transmission grid (21).
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公开(公告)号:EP4398436A1
公开(公告)日:2024-07-10
申请号:EP23212838.9
申请日:2023-11-28
发明人: Chen, Haidong , Wang, Yafeng , Lu, Yansong , Zhong, Linfeng , Wang, Changyong
摘要: An energy storage system (1, 1a, 1b) includes a DC bus (3), an energy storage converter (4), n first battery racks (5) and m energy storage units (6). The DC bus (3) has a positive bus (31) and a negative bus (32). The energy storage converter (4) is electrically connected to the DC bus (3). Each of the n first battery racks (5) is electrically connected between the positive bus (31) and the negative bus (32) directly. Each of the m energy storage units (6) includes a second battery rack (61) and a DC/DC converter (62). The DC/DC converter (62) is electrically connected between the corresponding second battery rack (61) and the DC bus (3). The DC/DC converter (62) performs electric energy conversion between the corresponding second battery rack (61) and the DC bus (3).
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公开(公告)号:EP4152547A1
公开(公告)日:2023-03-22
申请号:EP22190242.2
申请日:2022-08-12
发明人: Guan, Wei , Gao, Zhiguang , Chen, Jun , Lu, Yansong , Wang, Changyong
摘要: An energy storage system (1) is provided. The energy storage system (1) includes a plurality of battery clusters (11), a plurality of power regulators (12), a transformer (13), and a central controller (14). The plurality of power regulators (12) is configured to control charging and discharging of the plurality of battery clusters (11). Each power regulator (12) is electrically coupled to corresponding two, at most, of the plurality of battery clusters (11). A first terminal of the transformer (13) is electrically coupled to the plurality of power regulators (12), and a second terminal of the transformer (13) is electrically coupled to the power grid (2). The central controller (14) is coupled to the plurality of power regulators (12) and the plurality of battery clusters (11) for controlling the plurality of power regulators (12) and the plurality of battery clusters (11). The central controller (14) is in communication with the plurality of power regulators (12) through optical fibers, and a data transmission rate of the optical fibers is greater than IMbit/s.
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