| 摘要 |
PROBLEM TO BE SOLVED: To provide an inverter controller which reduces the three-phase AC offset current of an AC dynamo-electric machine with a high response, even during acceleration or deceleration of the AC dynamo-electric machine.SOLUTION: An inverter controller includes a current control section 603 generating an output voltage command value for controlling the output of an inverter performing drive control of an AC dynamo-electric machine, and a corrector 600 for correcting the offset error of a current sensor detecting the output current value of the inverter. The corrector 600 includes an offset amount operating section 606 for calculating the offset amount of the output voltage command value, and a correction operating section 601 for correcting the offset error of a current sensor on the basis of the offset amount. The offset amount operating section 606 calculates the offset amount of the output voltage command value corresponding to the offset current, on the basis of the output voltage command value calculated in the current control section 603 and the electrical angle of the rotor of the AC dynamo-electric machine, and the correction operating section 601 corrects the output current value by calculating the current value of offset error of the current sensor. |
