PROBLEM TO BE SOLVED: To provide a motor controller and electric power steering device having the same, capable of accommodating a malfunction caused by a harmonic component contained in a motor current.SOLUTION: The motor controller, drivingly controlling a motor on the basis of a d-axis current command value and a q-axis current command value calculated from a torque command value to the motor, includes a harmonic current command value calculation part for obtaining a d-axis harmonic current command value and a q-axis harmonic current command value to at least one harmonic component of a motor current on the basis of the torque command value and a rotational angle of the motor to drivingly control the motor using a correction d-axis current command value obtained by correcting the d-axis current command value with the d-axis harmonic current command value and a correction q-axis current command value obtained by correcting the q-axis current command value with the q-axis harmonic current command value.SELECTED DRAWING: Figure 3
【課題】モータ電流に含まれる高調波成分に起因して発生する不具合に対応可能なモータ制御装置及びそれを搭載した電動パワーステアリング装置を提供する。【解決手段】モータに対するトルク指令値から演算されるd軸電流指令値及びq軸電流指令値に基づいてモータを駆動制御するモータ制御装置において、トルク指令値及びモータの回転角に基づいて、モータ電流の少なくとも1つの高調波成分に対するd軸高調波電流指令値及びq軸高調波電流指令値を求める高調波電流指令値演算部を備え、d軸電流指令値をd軸高調波電流指令値で補正して求められる補正d軸電流指令値及びq軸電流指令値をq軸高調波電流指令値で補正して求められる補正q軸電流指令値を用いてモータを駆動制御する。【選択図】図3
MOTOR CONTROLLER AND ELECTRIC POWER STEERING DEVICE HAVING THE SAME
モータ制御装置及びそれを搭載した電動パワーステアリング装置
2017-07-20
Patent
Electronic Resource
Japanese
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