Permanent magnet control type of synchronous machine of vector control method and apparatus

摘要

The present invention relates to an apparatus and a vector control method of synchronous machine of permanent magnet-controlled. From the speed information and the horizontal axis current target value determined, by using the synchronous machine model of steady input network, horizontal axis voltage component and direct-axis voltage component of the control voltage for the synchronous machine is obtained. Voltage component of which are converted into drive pulses for the synchronous machine. In accordance with the present invention, in the control system, information about the phase currents of the polyphase AC motor is not required.