Multiphase motor having different winding configurations for...

Details Multiphase motor having different winding configurations for... Multiphase motor having different winding configurations for...

2005-02-08

2005-02-08

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S179000, C310S189000, 81, 81

Reexamination Certificate

active

06853107

ABSTRACT:
Reconfiguration of stator winding sections of each phase of a multiphase motor is controlled for successive ranges of speed during which the motor can be expected to operate to obtain optimum operating efficiency throughout the entire operating range. All winding sections for a stator element are energized throughout the motor operating speed range but connected, through appropriate switches, in different circuit configurations for respective portions of the speed range. The switches are activated by a controller in response to a sensed motor speed signal. The reconfiguration of stator winding sections may be incorporated within a motor control system that is adaptive to control various motor parameters in response to sensed conditions as well as user input commands.

REFERENCES:
patent: 3596158 (1971-07-01), Watrous
patent: 3984750 (1976-10-01), Pfeffer et al.
patent: 4030009 (1977-06-01), Halsted
patent: 5227710 (1993-07-01), Lewus
patent: 6252325 (2001-06-01), Nashiki
patent: 6329783 (2001-12-01), Vrionis et al.
patent: 6359800 (2002-03-01), Liang et al.
patent: 6493924 (2002-12-01), Das
patent: WO 9808291 (1998-02-01), None

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