公开(公告)号：US20060133120A1

公开(公告)日：2006-06-22

申请号：US11302775

申请日：2005-12-13

申请人： Shinji Sato ,  Fumio Nagamatsu ,  Takahiro Kanata ,  Yuji Fuse ,  Shoichi Kawauchi ,  Osamu Iyama

发明人： Shinji Sato ,  Fumio Nagamatsu ,  Takahiro Kanata ,  Yuji Fuse ,  Shoichi Kawauchi ,  Osamu Iyama

IPC分类号： H02M5/45 ,  H02M5/458

CPC分类号： H02M5/4585

摘要： A non-outage power supply system comprises three-phase ac input terminals and three-phase ac output terminals, between which there are sequentially connected a three-phase ac-to-dc converter circuit, a capacitor, and a three-phase dc-to-ac converter circuit. A bypass switch is connected between a preselected one of the three-phase ac input terminals and a preselected one of the three-phase ac output terminals. A bypass switch control circuit holds the bypass switch closed when the three-phase ac inputs are in phase with the three-phase ac outputs, and open when they are not. Part or all of the effective current demanded by the load bypasses the three-phase dc-to-ac converter circuit when the bypass switch is closed, with a consequent reduction of power loss.

摘要翻译： 一个非中断电源系统包括三相交流输入端子和三相交流输出端子，其间依次连接三相交流 - 直流转换器电路，电容器和三相直流 - 交流转换电路。 旁路开关连接在三相交流输入端子中的预选的一个和三相交流输出端子中的预选的一个之间。 旁路开关控制电路在三相交流输入与三相交流输出同相时将旁路开关保持闭合状态，当不连接时，旁路开关闭合。 当旁路开关闭合时，负载所需的部分或全部有效电流绕过三相dc-to-ac转换器电路，从而降低功率损耗。