| 摘要 |
PROBLEM TO BE SOLVED: To provide a current control equipment of an inverter which attains noise reduction and quick response, by judging the use of a filter according to whether large noise is contained in a signal. SOLUTION: This current control equipment is provided with a comparing means 11 and a switching means 12 of a current feedback value. The means 11 compares the change amount of a current detection value iq detected by current detectors 3, 4 with the change amount of a current command value iq *. The means 12 uses a current signal value averaged by using a filter 7 as a feedback value to the current command value iq * when the change amount with time of the current detection value of iq is large as compared with the change amount with time of the command value iq *. The means 12 uses the current detection signal, as it is, as the feedback value to the current command value iq * when the differance between the change amount with time of the current command value iq * and the change amount with time of the current detection value iq is small. |
