Motor controller

在电动机控制装置中，在存在有基本频率的电流成分的同时，也存在有多个高次谐波电流成分。但是，由于用以往的技术不能同时补偿6f、24f高次谐波电流成分，因而就不能同时消除电动机所发生的转矩脉动。本发明的电动机控制装置由旋转测定部4、电流测定部5、上位控制部20、第2电流指令发生器15、第2模拟观测器12、第1控制部10、第2控制部9、第3控制部13和第2电压指令合成部14构成，第2电压指令合成部14由三个位置变换器、三个逆坐标变换器和加法器构成。 A motor controller has both a basic-frequency current component and a harmonic current component at the same time. A prior art does not allow the simultaneous cancellation of torque ripples generated in a motor because the harmonic current components (6f, 24f) cannot be compensated at the same time. The motor controller is constituted of a rotation measuring section (4), a current measuring section (5), a high-order control section (20), a second current command generator (15), second simulation observer (12), first control section (10), second control section (9), third control section (13), and second voltage command synthesis section (14). The second voltage command synthesis section (14) is constituted of three position converters, three reverse coordinate converters, and an adder.