| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller which can perform stable current control even when the parameters of a three-phase motor fluctuate. <P>SOLUTION: A motor driver 100, which converts voltage commands for d axis in the direction of a field generated by a permanent magnet arranged in the rotor of a three-phase motor 10 and for q axis orthogonal to the d axis into three-phase voltage commands of each phase of three phases and drives the three-phase motor 10 by control based on the three-phase voltage command, is equipped with a PWM control unit 6 which controls the motor current of each phase of three phases by PWM control, and a sliding mode control unit 5 which determines the equivalent input at the time of making it follow a desired standard model and the control input for restricting it to a switching plane and performs sliding mode control synchronously with the cycle of PWM control. <P>COPYRIGHT: (C)2009,JPO&INPIT |
