Motor spindle control system and method

Details Motor spindle control system and method Motor spindle control system and method

2007-09-25

2007-09-25

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S132000, C318S434000

Reexamination Certificate

active

11347543

ABSTRACT:
In a motor having a number of poles that have nominally equiangularly-spaced positions that in fact deviate from those positions, the actual pole positions are determined by measuring the periods between zero-crossings of the back-EMF generated during pole-pair interactions. The ratios of the various pole periods can then be computed, and the motor drive current can be adjusted for each pole by applying the respective ratio to a base current value determined from the desired motor speed.

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