Feedback control method and apparatus for electric motor

Details Feedback control method and apparatus for electric motor Feedback control method and apparatus for electric motor

2011-04-19

2011-04-19

Benson, Walter (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S700000

Reexamination Certificate

active

07928675

ABSTRACT:
A feedback control method and apparatus for detecting phase currents of three or more phases on fixed coordinates of a polyphase electric motor with current sensors so as to be transformed into detection currents on rotating coordinates by fixed/rotating coordinate transformation and controlling the currents supplied to respective phases of the polyphase electric motor based on the detection currents on the rotating coordinates and target currents on the rotating coordinates.

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