| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that torque pulsation cannot be reduced when a magnetic flux winding a coil of a stator of a rotary machine 10 deviates from a fundamental frequency by performing feed-forward correction of output voltage of an inverter INV in order to make phase current of the rotary machine 10 into the fundamental frequency. <P>SOLUTION: A cancellation electromagnetic force output part 44 separately outputs cancellation electromagnetic force Fnθ in the contact direction, cancellation electromagnetic force FnR in the normal direction, and cancellation electromagnetic force FnT in the axis direction for cancellation electromagnetic force for canceling distortion of electromagnetic force resulting from deviation of a winding magnetic flux from a fundamental frequency. In each of distortion correction parts 36, 38 and 40, voltage according to the cancellation electromagnetic force is superposed on an operation amount (command voltage vur, vvr and vwr) for controlling a control amount. <P>COPYRIGHT: (C)2013,JPO&INPIT |
