公开(公告)号：EP4227692A1

公开(公告)日：2023-08-16

申请号：EP22739003.6

申请日：2022-01-11

申请人： NR ELECTRIC CO., LTD. ,  NR Engineering Co., Ltd.

发明人： XIE, Yeyuan ,  WANG, Yu ,  YAO, Hongyang ,  JIANG, Tiangui ,  ZHU, Minglian ,  OUYANG, Youpeng ,  HU, Zhaoqing ,  LI, Haiying ,  YIN, Guanxian ,  DUAN, Jun ,  REN, Tieqiang

IPC分类号： G01R31/14 ,  G01R31/52

摘要： Disclosed are a modular converter circuit featuring batch energy harvesting, and a control method. The modular converter circuit featuring batch energy harvesting comprises a batch energy harvesting unit and N sub-modules, wherein AC terminals of the N sub-modules are connected in series, and N is an integer greater than or equal to 2. The sub-module comprises: a power unit (1) comprising a power semiconductor device, an AC terminal of the power unit (1) being led out as the AC terminal of the sub-module; and a capacitor unit (2) connected in parallel with the power unit (1). The batch energy harvesting unit comprises: a first energy harvesting power supply (6), a negative electrode of the first energy harvesting power supply (6) being connected with a negative electrode of the capacitor unit (2) of a head-end sub-module among the N sub-modules or connected therewith through a current limiting unit; and a connection network (30), an input terminal of the connection network (30) being directly connected with a positive electrode of the first energy harvesting power supply (6) or connected therewith through a current limiting unit, and N output terminals of the connection network (30) being respectively connected with positive electrodes of the capacitor units (2) or connected therewith through current limiting units.

公开(公告)号：EP3799244A1

公开(公告)日：2021-03-31

申请号：EP19819033.2

申请日：2019-03-20

申请人： NR Electric Co., Ltd. ,  NR Engineering Co., Ltd.

发明人： XIE, Yeyuan ,  WANG, Yu ,  LIAN, Jianyang ,  DUAN, Jun ,  LIU, Hongde

IPC分类号： H02J3/32

摘要： Provided in the present application is an energy storage unit separated converter, and a system thereof, and a control method thereof. The energy storage unit separated converter comprises a power electronic conversion unit, at least one separated energy storage unit, and a first switch set; the first switch set is in series connection between the energy storage unit and a direct current side of the power electronic conversion unit, and the energy storage unit and the power electronic conversion unit may be separated by means separating a positive electrode switch and negative electrode switch in the first switch set.