Position and velocity sensorless control for a motor generator s

Details Position and velocity sensorless control for a motor generator s Position and velocity sensorless control for a motor generator s

1996-08-08

1998-05-05

Stephan, Steven L.

Electricity: single generator systems

With physical starting and/or stopping of the generator

322 14, 322 24, 322 46, 318801, H02K 2906

Patent

active

057479712

ABSTRACT:
A motor generator system (120) in accordance with the invention includes a prime mover (21) for driving an output shaft (18), a main motor generator (105), having a rotor driven by the output shaft, for producing electrical power on at least one output winding (36a-36c) in response to the prime mover rotating the output shaft and for driving the output shaft in response to operation as a motor; an exciter (102) for applying excitation to a field winding (34) of the main motor generator during operation for producing electrical power on the at least one output winding and for applying current to the field winding of the main motor and generator to produce a magnetic field in the field winding during operation of the main motor generator as a motor; circuitry (122), responsive to current in a field winding (204) of the exciter, for producing an output signal representing a position of the rotor of the main motor generator driven by the output shaft; and a main inverter (114), responsive to the output signal, for commutating application of electrical current to the at least one output winding to control operation of the main motor generator during operation as a motor.

REFERENCES:
patent: 5384527 (1995-01-01), Rozman et al.
patent: 5461293 (1995-10-01), Rozman et al.
patent: 5493200 (1996-02-01), Rozman et al.
patent: 5541488 (1996-07-01), Bansal et al.
patent: 5581168 (1996-12-01), Rozman et al.
patent: 5594322 (1997-01-01), Rozman et al.

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