| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller and a motor system which prevent load torque fluctuation inhibitory control and hunting inhibitory control from interfering with each other to enable stable operation of a motor. <P>SOLUTION: The motor controller 101 includes: a frequency memory unit 80 which, based on a detected mechanical angle, outputs any one of a plurality of first revolution speed corrections; a current oscillation detecting unit 81 which, based on a detected drive current, detects a current oscillation that is generated for a period longer than a mechanical angle period of a rotor; a revolution speed correction calculating unit 82 which generates a second revolution speed correction for offsetting a detected current oscillation; a sinusoidal wave data generating unit 67 which corrects a revolution speed instruction value for the motor based on first and second revolution speed corrections and generates sinusoidal wave data based on a corrected revolution speed; and a PWM generating unit 68 which, based on sinusoidal wave data and a torque correction, calculates a PWM signal as control data to an inverter circuit 52. <P>COPYRIGHT: (C)2010,JPO&INPIT |
