| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide the controller of the electric motor which can reduce oscillation even in decoupling control. <P>SOLUTION: The controller is equipped with a gain adjustment part 105 which converts angular velocity ω [rad/s] of a rotor into gain-adjusted angular velocity ω' [rad/s] so that a gain in oscillation frequency of the angular velocity ω [rad/s] of the rotor may be reduced. The controller is equipped with a decoupling controller 104 which obtains a decoupling d-axis voltage command value Vd [V] and a decoupling q-axis voltage command value Vq [V], for decoupling control. The decoupling controller 104 obtains them, on the basis of the gain-adjusted angular velocity ω' [rad/s], a d-axis PI output voltage command value Vd' [V] and a q-axis PI output voltage command value Vq' [V]. Furthermore, the controller is equipped with a PWM converter 109, which generates a PWM signal PWM for controlling an inverter 2, on the basis of three-phase voltage command values Vu, Vv, and Vw [V] converted from the decoupling d-axis voltage command value Vd [V] and the decoupling q-axis voltage command value Vq [V]. <P>COPYRIGHT: (C)2013,JPO&INPIT |
