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    Power failure stop circuit for a converter
    9.
    发明授权
    Power failure stop circuit for a converter 失效
    转换器电源故障停止电路

    公开(公告)号：US4678980A

    公开(公告)日：1987-07-07

    申请号：US923543

    申请日：1986-10-27

    申请人： Shigeyuki Sugimoto ,  Masayuki Kato ,  Katsuhiko Chonan

    发明人： Shigeyuki Sugimoto ,  Masayuki Kato ,  Katsuhiko Chonan

    IPC分类号： H02P27/06 ,  H02H7/12 ,  H02M7/48 ,  H02P3/14 ,  H02P3/18

    CPC分类号： H02P3/14 ,  H02H7/1216

    摘要： The voltage in a converter 20 is compared with a reference voltage to detect an input power failure, in response to which a motor driven by the converter is automatically decelerated in accordance with a stored signal pattern/speed reduction curve such that the energy regenerated by the motor is equal to its power consumption. The DC bus voltage of the converter is thus maintained substantially constant during the regenerative braking of the motor, and it is promptly halted without resort to any mechanical braking unit.

    摘要翻译： 将转换器20中的电压与参考电压进行比较以检测输入电力故障，响应于转换器驱动的电动机根据存储的信号模式/速度降低曲线自动减速，使得由 电机等于其功耗。 因此，在电动机的再生制动期间，转换器的直流母线电压保持基本上恒定，并且不需要借助于任何机械制动单元就立即停止。