| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor drive power converter device performing stable and high accurate motor control, without depending on the operating condition of a motor and input voltage. SOLUTION: This motor drive power converter device, comprises a torque speed input part 31 for inputting torque and a speed of a servo motor or a main shaft motor, NC command input part 32 inputting a command from an NC device, motor torque speed estimation part 33 for estimating the torque and the speed of the servo motor or the main shaft motor based on the input command, and an optimum DC voltage calculation part 35 for calculating the optimum DC voltage for controlling the drive of the serve motor or the main shaft motor, based on the input torque and speed and the estimated torque and speed. |
