| 摘要 |
The present invention pertains to a control device and a control method for multi-phase electric motors, having each phase coil connected by a star connection. This control device comprises an inverter circuit, a relay connected in series to each phase coil, and a drive circuit connected to a neutral point of the star connection. If a fault occurs in any phase among the plurality of phases of the multi-phase electric motor, the relay connected to the faulty phase is turned OFF and the output from the drive circuit is changed in accordance with the electrical angle of the magnetic field vector to be generated. As a result, a current close to normal can be caused to flow to normal phases. |
