Control apparatus for selectively driving plural stator...

Details Control apparatus for selectively driving plural stator... Control apparatus for selectively driving plural stator...

2007-09-04

2007-09-04

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Load control

C318S430000, C318S432000, C318S434000, C318S132000, C318S254100, C318S434000, C318S560000, C318S700000

Reexamination Certificate

active

11028856

ABSTRACT:
A control apparatus for a synchronous motor such as a switched reluctance motor, having a plurality of respectively separate stator windings, can operate the motor in either a normal mode or a low-torque mode by selectively supplying drive current to the stator windings. In the low-torque mode, alternate ones of the stator windings are driven in succession, thereby ensuring that electromagnetic forces will not be continually applied to the rotor of the motor along the same limited range of directions and so preventing unbalanced wear of the rotor shaft and bearings.

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patent: 2001-271917 (2001-10-01), None

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