| 摘要 |
There is provided a control device for an electric motor that controls the operation of the electric motor by outputting PWM signals to switching elements included in an inverter. The control device for the electric motor includes a voltage-command generating unit 21 configured to generate, as voltage commands Vu*, Vv*, and Vw*, a superimposed wave signal obtained by superimposing, on a sine wave having an inverter output frequency FINV as a fundamental frequency, a third harmonic of the sine wave and a PWM-signal generating unit 23 configured to generate PWM signals U, V, W, X, Y, and Z by comparing the amplitudes of the voltage commands output by the voltage-command generating unit 21 and the amplitude of a carrier signal CAR. |
