CONTROL DEVICE OF ROTATING MACHINE FOR ELEVATOR

摘要

PROBLEM TO BE SOLVED: To suppress an increase in the moving time of an elevator in addition to securing control performance and stability in response to the moving direction and the loading amount of a car of the elevator without using a speed detector.

SOLUTION: This control device of a rotating machine for an elevator that controls the speed of the rotating machine of the elevator without a speed sensor includes: a speed command signal generating means for generating a rotational speed command for the rotary machine; a speed sensorless control means for controlling voltage applied to the rotary machine without a speed sensor based on the rotational speed command from the speed command signal generating means; and a brake for applying braking torque to the rotary machine. The speed sensorless control means compensates for the insufficiency of regeneration torque in a deceleration section by effectuating braking torque according to the moving direction and the loading amount of the car so that a constant acceleration operation curve is obtained regardless of the loading amount of the car.

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