Method of balancing the rotation of a motor

Electricity: motive power systems – Power factor control of armature or line circuit

Reexamination Certificate

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Details

C318S254100, C318S132000, C318S434000, C318S727000, C318S008000

Reexamination Certificate

active

07106018

ABSTRACT:
A method of balancing the rotation of a motor is provided. Whether or not the motor is in a balanced rotation is determined by detecting whether the variation of a power-factor angle is less than or equal to a preset balance angle according to the principle that the load on a motor has an effect on the variation of the power-factor angle. The determined balance state of the motor is used to adjust the rotation speed of the motor.

REFERENCES:
patent: 3997825 (1976-12-01), Miyasita et al.
patent: 2002/0149342 (2002-10-01), Nakata et al.
patent: 2002/0190685 (2002-12-01), Sadasivam et al.

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