公开(公告)号：US5747887A

公开(公告)日：1998-05-05

申请号：US032244

申请日：1993-03-17

申请人： Toshiyuki Takanaga ,  Yasuo Taguchi ,  Seiji Sadayoshi ,  Mikio Kato ,  Kazuo Kuroki

发明人： Toshiyuki Takanaga ,  Yasuo Taguchi ,  Seiji Sadayoshi ,  Mikio Kato ,  Kazuo Kuroki

IPC分类号： H02J3/01 ,  H02J3/28 ,  H02J3/38 ,  H02J7/34 ,  H02J9/06 ,  H02J7/00

CPC分类号： H02J3/28 ,  H02J9/062 ,  Y10T307/505 ,  Y10T307/615 ,  Y10T307/724

摘要： The bus line of an electric power system is connected to an inverter which can be placed in a forward operation mode or in a reverse operation mode, and batteries are connected to the inverter to store the dc energy thereof. When a commercial power source is normal, an ac switch is closed, so that the inverter is placed in the forward operation mode to perform an active filter operation for eliminating harmonic current and reactive current. When necessary, the batteries are charged, and the inverter is placed in the reverse operation mode to perform a peak cut power generation. At loss of the commercial power source or momentary drop of the supply voltage, the switch is opened so that the inverter is placed in the reverse operation mode to perform an UPS operation (emergency power generation). Hence, electric power is supplied without interruption to an important load and the emergency load.

摘要翻译： 电力系统的总线与逆变器连接，该逆变器可以处于正向操作模式或反向操作模式，并且电池连接到逆变器以存储其直流能量。 当商用电源正常时，交流开关闭合，使逆变器处于正向运行模式，进行有源滤波操作，消除谐波电流和无功电流。 必要时，对电池进行充电，逆变器处于反向运转模式，进行峰值切断发电。 在商业电源丢失或电源电压瞬间下降的情况下，开关断开，使逆变器处于反向运行模式，进行UPS运行（紧急发电）。 因此，不间断地提供电力到重要的负载和紧急负载。