AC ROTATING MACHINE CONTROLLER

摘要

[PROBLEMS] To propose an AC rotating machine controller for suppressing a great variation of the amplitude of an AC phase current even a variation of the temperature of an AC rotating machine and capable of stable starting the AC rotating machine. [MEANS FOR SOLVING PROBLEMS] Control means makes control including start control of an AC rotating machine. The control means computes during the start control a resistance drop component corresponding to the resistance drop of the AC rotating machine from a detection current, regulates the angular frequency of the AC output voltage according to the remainder of the subtraction of resistance drop signal from the voltage command, and regulates during the start control the amplitude of the AC output voltage so that the amplitude of the AC phase current may vary according to a predetermined function.