| abstract |
A motor controller is provided for controlling a motor system including a power converter (13), a smoothing capacitor (12), a three-phase AC motor (14), and a current sensor (14v, 14w). An electronic control unit 15 is provided in the motor controller. Wherein the electronic control unit includes three phases generated from the detected values (Iv *, Iw *) of the current sensor that detect phase currents on the target so that the terminal voltage (VH) of the smoothing capacitor coincides with the predetermined voltage value Based on the voltage command signals Vu, Vv, and Vw, a target phase that is a phase of the second phase voltage command signal having the largest difference from the first phase voltage command signal having a signal level that is not the maximum but is not the minimum (156). |