SPEED CONTROLLER OF MAGNET MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a speed controller of a magnet motor realizing the control characteristics of high stability, efficiency, and response even near the limit torque of the motor, relating to a speed control method of magnet motor.

SOLUTION: The input of speed control is limited not to allow the q-axis current command value to reach a limit value when a torque command value (or current command value of q-axis) larger than the torque maximum value (or q-axis current) that a motor can output is requested.

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