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    • 10. 发明申请
    • METHODS AND APPARATUS FOR MAINTAINING SYNCHRONIZATION OF A POLYPHASE MOTOR DURING POWER INTERRUPTIONS
    • 在电源中断期间保持多相电机同步的方法和装置
    • US20040041530A1
    • 2004-03-04
    • US10233725
    • 2002-09-03
    • William A. Peterson
    • H02P001/18
    • H02P1/18H02P29/00Y10S388/923
    • Methods and apparatus permit: monitoring a level of a DC source that is used to provide an operating DC voltage to a control circuit and to provide DC bus voltage to a driver circuit for a polyphase motor, the control circuit being of a type that senses signals in windings of the polyphase motor to determine a rotor position thereof and to maintain synchronization therewith; converting kinetic energy of the polyphase motor into a secondary DC source when the level of the DC source has fallen and reached a threshold; and regulating a voltage level of the secondary DC source such that it is operable to provide the operating DC voltage to the control circuit, and such that the control circuit is capable of maintaining synchronization with the polyphase motor while the DC source remains substantially at or below the threshold.
    • 方法和设备允许:监视用于向控制电路提供工作DC电压的直流电源的电平,以及向多相电动机的驱动电路提供DC总线电压,所述控制电路是感测信号的类型 在多相电机的绕组中确定其转子位置并保持与其同步; 当DC源的电平下降并达到阈值时,将多相电动机的动能转换为次级DC源; 并且调节次级DC源的电压电平,使得其可操作以向控制电路提供工作DC电压,并且使得控制电路能够保持与多相电动机的同步,同时DC源基本保持在或低于 门槛。