公开(公告)号：EP2905889B1

公开(公告)日：2017-12-27

申请号：EP15150339.8

申请日：2015-01-07

申请人： Hitachi, Ltd.

发明人： Ishikura, Yuki ,  Bandou, Akira ,  Kokura, Shin ,  Ichinose, Masaya ,  Ishikawa, Masakazu ,  Fujita, Ryou

IPC分类号： H02M1/084 ,  H02M1/00 ,  H02M7/483

CPC分类号： H02M7/483 ,  H02M1/0845 ,  H02M2001/0003 ,  H02M2007/4835

摘要： A power conversion apparatus (116a) includes a cell (105) which includes an energy storage element (204) and a switching device (202, 203) and which outputs either of a positive or negative voltage and a zero voltage relying on a voltage of the energy storage element by on or off of the switching device; an arm (104) in which one or a plurality of the cells (105) are serially connected; a power conversion circuit (103) which includes the arm (104) in plurality and which is capable of converting an alternating current to a direct current or converting a direct current to an alternating current; a central control device (107) which collectively controls each of the cells (105); a plurality of intermediate control devices (113) which are daisy-chain connected to the central control device (107) through an optical fiber cable (111); and a cell control device (213) which is connected to the intermediate control device (113) and which controls each of the cells (105). To AC terminals U, V, and W of each phase, one end of each serial circuit is connected. To DC terminals P and N, the other end of each of the serial circuits is connected in parallel.

公开(公告)号：EP2905889A1

公开(公告)日：2015-08-12

申请号：EP15150339.8

申请日：2015-01-07

申请人： Hitachi, Ltd.

发明人： Ishikura, Yuki ,  Bandou, Akira ,  Kokura, Shin ,  Ichinose, Masaya ,  Ishikawa, Masakazu ,  Fujita, Ryou

IPC分类号： H02M7/79 ,  H02M7/483

CPC分类号： H02M7/483 ,  H02M1/0845 ,  H02M2001/0003 ,  H02M2007/4835

摘要： A power conversion apparatus (116a) includes a cell (105) which includes an energy storage element (204) and a switching device (202, 203) and which outputs either of a positive or negative voltage and a zero voltage relying on a voltage of the energy storage element by on or off of the switching device; an arm (104) in which one or a plurality of the cells (105) are serially connected; a power conversion circuit (103) which includes the arm (104) in plurality and which is capable of converting an alternating current to a direct current or converting a direct current to an alternating current; a central control device (107) which collectively controls each of the cells (105); a plurality of intermediate control devices (113) which are daisy-chain connected to the central control device (107) through an optical fiber cable (111); and a cell control device (213) which is connected to the intermediate control device (113) and which controls each of the cells (105). To AC terminals U, V, and W of each phase, one end of each serial circuit is connected. To DC terminals P and N, the other end of each of the serial circuits is connected in parallel.

摘要翻译： 电力转换装置（116a）包括具有能量存储元件（204）和开关元件（202,203）的电池单元（105），并且根据电力变换装置（102,203）的电压，输出正负电压和零电压 所述能量存储元件通过所述开关装置的接通或断开; 臂（104），其中一个或多个单元（105）串联连接; 功率转换电路（103），其包括多个臂（104），其能够将交流电转换成直流电流或将直流电转换成交流电; 共同控制每个单元（105）的中央控制装置（107）; 多个中间控制装置（113），其通过光纤电缆（111）与所述中央控制装置（107）串联连接; 以及连接到所述中间控制装置（113）并控制所述单元（105）中的每一个的单元控制装置（213）。 对于每相的交流端子U，V和W，连接每个串联电路的一端。 对于直流端子P和N，串联电路的另一端并联连接。