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    • 1. 发明专利
    • Three-phase induction motor driving method and driving device used therein
    • 三相感应电动机驱动方法及其使用的驱动装置
    • JP2005143266A
    • 2005-06-02
    • JP2003380029
    • 2003-11-10
    • Toyo Riken Kk東洋理研株式会社
    • HIRATA MASATOTATSUNO TERUHIRO
    • H02P1/28H02P5/00H02P27/02H02P29/00H02P7/622
    • PROBLEM TO BE SOLVED: To solve the problems that a star-delta system of is a two-step start is unapplicable to various loads, that a thyristor system is mainly of an analog system, and is unapplicable to such loads as require a large current at an initial stage, and that a frequency control system has a bad effect on a power supply in a factory because of the generation of the harmonic waves. SOLUTION: A three-phase induction motor is started or stopped by a three-phase AC power supply, the phase control of which is performed by a semiconductor switch of an IGBT or an IEGT. At the time of rated rotation of the three-phase induction motor, the rated operation of the three-phase induction motor is performed by the three-phase AC power supplied from a bypass circuit that bypasses the semiconductor switch. The phase control of the three-phase AC input power supply is performed by the switching control of the IGBT or the IEGT with a CPU. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了解决星形三角系统是两步开始的问题,不适用于各种负载,晶闸管系统主要是模拟系统,并且不适用于所需的负载 在初始阶段的大电流,并且由于谐波的产生,频率控制系统对工厂的电源产生不利影响。 解决方案:三相异步电动机由三相交流电源启动或停止,三相交流电源的相位控制由IGBT或IEGT的半导体开关进行。 在三相感应电动机的额定旋转时,三相感应电动机的额定运行是通过绕过半导体开关的旁路电路提供的三相交流电而进行的。 三相交流输入电源的相位控制由IGBT或IEGT与CPU的开关控制进行。 版权所有(C)2005,JPO&NCIPI