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1. 发明专利

JPS56148175A SPLIT TWO-PHASE POWER DRIVE CHOPPER DEVICE 失效
公开(公告)号：JPS56148175A
公开(公告)日：1981-11-17
申请号：JP5160080
申请日：1980-04-21
申请人： HAYASHI KAZUHIKO , KAN KEIKI , UEDA MINORU
发明人： HAYASHI KAZUHIKO , KAN KEIKI , UEDA MINORU
IPC分类号： H02M3/135 , H02M3/10
摘要： PURPOSE:To reduce unbalances of a pulsation factor and a phase current between a stringing current and a motor current by a method wherein coupling reactors are inserted in series in DC motor groups divided into two groups, respectively, and four pairs of electronic switches are inserted in series connected terminals, respectively. CONSTITUTION:The coupling reactors LC are inserted in series in the respective series connected DC motor groups whcich are divided into the two groups, and the four pairs of the electronic switches S1, S2, S1', S2' are inserted in the respective series connected terminals. By feeding control signals to the electronic switches S1- S2' to be turned ON-OFF by two phases, average voltages applied to the respective motor groups are continuously controlled extending over the whole range from zero to a power voltage ES, including series-parallel controls of the two groups, and the loads on the respective motors are designed to uniformly be alloted. For example, armatures M of the eight series-wound motors and magnetic field windings F of the electric car are connected as an equivalent circuit shown in the diagram to chopper- control as mentioned above using thyristors as the electronic switches S1-S2'.

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