| 摘要 |
PROBLEM TO BE SOLVED: To suppress a vibration and noises by operating the time interval of the specified electical angle based on a magnetic-pole-position detecting signal, operating a correction voltage for a motor based on the time interval, obtaining the driving voltage of the motor based on the correction voltage and the average voltage and forming the control signal of an inverter based on the driving voltage and the magnetic-pole position signal. SOLUTION: An inverter control part 5 inputs a signal from a magnetic-pole-position detecting circuit 4 into an average revolution operating part 5a and operates an average revolution. Furthermore, the signals from the magnetic-pole-position detecting circuit 4 are inputted into a time operating part 5c for an electrical angle of 360 deg., and the time interval of the electrical angle of 360 deg. is operated. Then, the driving voltage of a motor 3 is operated in a driving-voltage operating part 5e based on the average voltage of the motor 3, which is operated in an average-voltage operating part 5b based on the average revolution and a command revolution, and the correction voltage of the motor 3, which is operated in a correcton-voltage operating part 5d based on the time interval of the electrical angle of 360 deg.. Based on the driving voltage and the magnetic-pole position signal, the control signal of the inverter circuit 2 is generated in a control-signal generating part 5f. |
