| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary electric machine controller capable of constantly adjusting power loss of an AC rotary electric machine dependent on a carrier frequency.SOLUTION: The rotary electric machine controller includes carrier frequency setting means for setting a carrier frequency of a carrier wave used for PWM control. The carrier frequency setting means performs frequency change control for changing a carrier frequency in the PWM control so that an element temperature Tc of a switching element approaches a target element temperature when the element temperature Tc is less than or equal to a change permission temperature Tp.SELECTED DRAWING: Figure 9 |
