Phase advance angle optimization for brushless motor control

Details Phase advance angle optimization for brushless motor control Phase advance angle optimization for brushless motor control

2003-01-29

2008-10-14

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Phasing or angular or linear positional control of movable...

C318S400010, C318S400070, C318S400090, C318S400140, C318S400150

Reexamination Certificate

active

07436139

ABSTRACT:
A control system for a multiphase permanent magnet motor having a controller for producing a control signal to energize each phase winding. The controller includes a current value calculator for determining a value of phase current advanced in phase with respect to back-EMF by a phase advance angle, and a phase advance optimization circuit for producing a value of the phase advance angle optimized so as to maximize output torque of the motor and mimimize the phase current. The phase advance optimization circuit determines the phase advance angle optimized for each phase of the motor.

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