Drive control apparatus for multiple-winding motor

1. A drive control apparatus for a multiple-winding motor having a plurality sets of winding groups,

corresponding to each of the winding groups, the drive control apparatus comprising

a power converter driving a winding group,

a current detector detecting a current in the winding group and

a controller controlling the power converter for driving the winding group by obtaining a voltage command value for controlling the power converter based on a current deviation between a current value of the winding group which is detected by the current detector and a current command value of the winding group which is inputted, and

the drive control apparatus further comprising a compensation amount calculator which obtains, by using a signal of a first controller controlling a first power converter driving a first winding group among the winding groups, a compensation amount for compensating a signal of other controller controlling other power converter other than the first power converter,

wherein based on the compensation amount which is obtained by the compensation amount calculator, a signal of the other controller is compensated and the other power converter is controlled, and the first power converter is controlled without compensating a signal of the first controller, and

wherein regarding a control system from the current command value of the first winding group to a current of the first winding group, in a case where a control gain of the other controller is set to the same as a value of a control gain which is set as a control gain of the first controller, a phase delay of the control system at a zero crossing frequency of the gain is 180 degrees or more, a control gain of other controller is set to be equal to or smaller than a control gain which is set as a control gain of the first controller and, by using a signal of the first controller, the compensation amount calculator obtains the compensation amount for compensating a signal of the voltage command value of the other controller or a signal of the current command value of the other controller.

2. The drive control apparatus for a multiple-winding motor according to claim 1 ,

wherein the compensation amount calculator uses a signal of the voltage command value of the first controller so as to obtain the compensation amount for compensating a signal of a command value of the other controller.

3. The drive control apparatus for a multiple-winding motor according to claim 2 ,

wherein a control gain of the other controller is equal to or smaller than a control gain of the first controller.

4. The drive control apparatus for a multiple-winding motor according to claim 3 ,

wherein regarding a control system from the current command value of the first winding group to a current of the first winding group, in a case where a control gain of the other controller is set to the same as a value of a control gain which is set as a control gain of the first controller, a phase delay of the control system at a zero crossing frequency of the gain is 180 degrees or more.

5. The drive control apparatus for a multiple-winding motor according to claim 2 ,

wherein regarding a control system from the current command value of the first winding group to a current of the first winding group, in a case where a control gain of the other controller is set to the same as a value of a control gain which is set as a control gain of the first controller, a phase delay of the control system at a zero crossing frequency of the gain is 180 degrees or more.

6. The drive control apparatus for a multiple-winding motor according to claim 1 ,

wherein a control gain of the other controller is equal to or smaller than a control gain of the first controller.

7. The drive control apparatus for a multiple-winding motor according to claim 6 ,

wherein regarding a control system from the current command value of the first winding group to a current of the first winding group, in a case where a control gain of the other controller is set to the same as a value of a control gain which is set as a control gain of the first controller, a phase delay of the control system at a zero crossing frequency of the gain is 180 degrees or more.

8. The drive control apparatus for a multiple-winding motor according to claim 1 ,

wherein regarding a control system from the current command value of the first winding group to a current of the first winding group, in a case where a control gain of the other controller is set to the same as a value of a control gain which is set as a control gain of the first controller, a phase delay of the control system at a zero crossing frequency of the gain is 180 degrees or more.

9. A drive control apparatus for a multiple-winding motor having a plurality sets of winding groups,

corresponding to each of the winding groups, the drive control apparatus comprising

a power converter driving a winding group

a current detector detecting a current in the winding group and

a controller controlling the power converter for driving the winding group by obtaining a voltage command value for controlling the power converter based on a current deviation between a current value of the winding group which is detected by the current detector and a current command value of the winding group which is inputted and

the drive control apparatus further comprising a compensation amount calculator which obtains, by using a signal of a first controller controlling a first power converter driving a first winding group among the winding groups, a compensation amount for compensating a signal of other controller driving other power converter other than the first power converter,

wherein based on the compensation amount which is obtained by the compensation amount calculator, a signal of the other controller is compensated and the other power converter is controlled, and the first power converter is controlled without compensating a signal of the first controller, and

wherein the compensation amount calculator uses a signal of the current deviation of the first controller so as to obtain the compensation amount for compensating a signal of the voltage command value of the other controller or a signal of the current command value of the other controller.

10. A drive control apparatus for a multiple-winding motor having a plurality sets of winding groups,

corresponding to each of the winding groups, the drive control apparatus comprising

a power converter driving a winding group

a current detector detecting a current in the winding group and

a controller controlling the power converter for driving the winding group by obtaining a voltage command value for controlling the power converter based on a current deviation between a current value of the winding group which is detected by the current detector and a current command value of the winding group which is inputted and

the drive control apparatus further comprising a compensation amount calculator which obtains, by using a signal of a first controller controlling a first power converter driving a first winding group among the winding groups, a compensation amount for compensating a signal of other controller driving other power converter other than the first power converter,

wherein based on the compensation amount which is obtained by the compensation amount calculator, a signal of the other controller is compensated and the other power converter is controlled, and the first power converter is controlled without compensating a signal of the first controller, and

wherein the compensation amount calculator uses a signal of the current command value of the first controller so as to obtain the compensation amount for compensating a signal of the voltage command value of the other controller or a signal of the current deviation of the other controller.