| 摘要 |
A motor controller supplies power to a motor and drives the motor, the motor including a position detector. The motor controller includes a velocity control unit which generates a torque instruction by using a velocity instruction and a velocity signal; a correction processing unit which Fourier-transforms the torque instruction, extracts first-, second-, and sixth-order frequency components from the Fourier-transformed torque instruction, extracts an order component having the largest spectrum from the extracted order components, and generates a sine wave correction signal; an adder which adds the sine wave correction signal to the torque instruction, and generates a new torque instruction; and a position-signal generation unit which generates a position signal by using a position detection signal of the position detector.
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