US 12,444,776 B2
Battery cluster management device and battery energy storage system
Jianjie Zhou, Hefei (CN); Qingqing Xu, Hefei (CN); and Hui Tong, Hefei (CN)
Assigned to Sungrow Power Supply Co., Ltd., Hefei (CN)
Filed by Sungrow Power Supply Co., Ltd., Hefei (CN)
Filed on Nov. 18, 2021, as Appl. No. 17/529,946.
Claims priority of application No. 202011322706.1 (CN), filed on Nov. 23, 2020.
Prior Publication US 2022/0166072 A1, May 26, 2022
Int. Cl. H02M 1/36 (2007.01); H01M 10/42 (2006.01)
CPC H01M 10/425 (2013.01) [H01M 10/4207 (2013.01); H02M 1/36 (2013.01); H01M 2010/4271 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A battery cluster management device, comprising: a networking circuit and an integrated controller, wherein
the networking circuit comprises a connecting circuit and a power conversion circuit connected in series;
the integrated controller is connected to the connecting circuit, the power conversion circuit, and a battery management unit (BMU) in a battery cluster, respectively;
the integrated controller is configured to: perform a preset battery management process according to preset electrical information fed back by the connecting circuit and the BMU, and control the power conversion circuit to perform a preset current conversion process;
the integrated controller comprises a battery cluster management unit (CMU);
the power conversion circuit comprises a direct current to alternating current (DC-AC) circuit or a direct current to direct current (DC-DC) circuit;
wherein in a case that the power conversion circuit comprises the DC-DC circuit, the connecting circuit comprises a first direct current (DC) connecting circuit and a second DC connecting circuit, the first DC connecting circuit is connected in series between the battery cluster and the DC-DC circuit, the second DC connecting circuit is connected in series between the DC-DC circuit and a DC-AC conversion device, and the first DC connecting circuit and the second DC connecting circuit are connected with the integrated controller, respectively.