DEAD-TIME COMPENSATOR AND METHOD FOR PERMANENT MAGNET SYNCHRONOUS DRIVES

摘要

PURPOSE: A dead time compensator of a permanent magnet synchronous motor driving control device and a compensating method thereof are provided to compensate for a distortion current by detecting an electrical position of a rotor and the current supplied to a synchronous motor. CONSTITUTION: A unit counter electromotive force vector operator(120) calculates a unit counter electromotive force vector of two phase stationary coordinate system. A rotator position increment operator(130) calculates the rotator position increment about a unit sampling period. A stator interlink magnetic flux increment operator(110) calculates the stator interlink magnetic flux increment of two phase stationary coordinate system. An inverter error voltage operator(140) calculates an error voltage using the unit counter electromotive vector, the rotor position increment, and the stator interlink magnetic flux increment. A low pass filter(150) outputs the filtered error voltage.