| 摘要 |
The invention provides a control apparatus with a current instruction operation department (18) which calculates d and q axis current instruction values based on the torque command value of a permanent magnet synchronous motor (80). The current instruction operation department comprises the components as follows: a magnetic flux instruction unit (111) for calculating magnetic flux instruction values according to torque command values; an output limiter; a magnetic flux correction factor upper limit operator which adjusts the magnetic flux instruction values to values larger than normal operation values; an output limiter; a multiplier; and a current instruction operator. According to the invention, rise of DC intermediate voltage caused by regenerated energy is inhibited without considering motor operation state, seamless control through the same control system without switching the normal operation and regenerated energy control. |
