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公开(公告)号：EP0015641B1
公开(公告)日：1984-11-07
申请号：EP80300212.0
申请日：1980-01-23
申请人： Hitachi, Ltd.
发明人： Kiwaki, Hisakatsu , Tachibana, Kyozo , Onoda, Yoshimitsu , Suzuki, Katsuaki , Horie, Tatsuo , Suzuki, Yutaka , Miura, Shozuchi
CPC分类号： H02J3/1864 , B60L9/12 , B60L2200/26 , B60L2210/20 , H02M7/19 , Y02E40/12 , Y02T10/725
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公开(公告)号：EP0015641A3
公开(公告)日：1980-10-01
申请号：EP80300212
申请日：1980-01-23
申请人： Hitachi, Ltd.
发明人： Kiwaki, Hisakatsu , Tachibana, Kyozo , Onoda, Yoshimitsu , Suzuki, Katsuaki , Horie, Tatsuo , Suzuki, Yutaka , Miura, Shozuchi
CPC分类号： H02J3/1864 , B60L9/12 , B60L2200/26 , B60L2210/20 , H02M7/19 , Y02E40/12 , Y02T10/725
摘要： The two secondary windings (N 21 , N 22 ) of a transformer the primary winding (N,) of which is connected to an AC power supply (P s ) are each provided with a controlled rectifying circuit (R f1 , R f2 ). The DC sides of the rectifying circuits (R f1 , R f2 ) are connected in series to supply power to DC motors (M, M 1 -M 6 ). One of the secondary windings (N 21 , N 22 ) is detachably connected with a capacitor bank (CLC). The capacity of the capacitor bank (CLC) is selected so that the power factor of the converter can be improved to a satisfactory value when the two rectifying circuits (R f1 , R f2 ) are both controlled to produce output voltages. The capacitor bank (CLC) becomes connected in response to the fact that the current in the primary winding (N,) of a transformer (T r ) has arrived at a predetermined value.
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公开(公告)号：EP0015641A2
公开(公告)日：1980-09-17
申请号：EP80300212.0
申请日：1980-01-23
申请人： Hitachi, Ltd.
发明人： Kiwaki, Hisakatsu , Tachibana, Kyozo , Onoda, Yoshimitsu , Suzuki, Katsuaki , Horie, Tatsuo , Suzuki, Yutaka , Miura, Shozuchi
CPC分类号： H02J3/1864 , B60L9/12 , B60L2200/26 , B60L2210/20 , H02M7/19 , Y02E40/12 , Y02T10/725
摘要： The two secondary windings (N 21 , N 22 ) of a transformer the primary winding (N,) of which is connected to an AC power supply (P s ) are each provided with a controlled rectifying circuit (R f1 , R f2 ). The DC sides of the rectifying circuits (R f1 , R f2 ) are connected in series to supply power to DC motors (M, M 1 -M 6 ). One of the secondary windings (N 21 , N 22 ) is detachably connected with a capacitor bank (CLC). The capacity of the capacitor bank (CLC) is selected so that the power factor of the converter can be improved to a satisfactory value when the two rectifying circuits (R f1 , R f2 ) are both controlled to produce output voltages. The capacitor bank (CLC) becomes connected in response to the fact that the current in the primary winding (N,) of a transformer (T r ) has arrived at a predetermined value.
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