Using sensed stator terminal voltages for determining alternator

Details Using sensed stator terminal voltages for determining alternator Using sensed stator terminal voltages for determining alternator

1996-09-23

1997-11-25

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Power factor or phase relationships

322 28, 322 36, 318701, 318721, H02P 600

Patent

active

056916256

ABSTRACT:
A system for determining rotor position of an n-phase alternator driven by an inverter uses as inputs the stator terminal voltages of the alternator with respect to the negative power bus, which are already also provided as inputs to the inverter, and provides as outputs simulated rotor positions states. The simulated rotor position states are provided to one or more inverter controllers which, in turn, provide firing signals to one or more corresponding inverters which are used to crank an engine, e.g., an internal combustion engine of a diesel electric locomotive.

REFERENCES:
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patent: 4585982 (1986-04-01), Cooper et al.
patent: 4585983 (1986-04-01), Cooper et al.
patent: 5051680 (1991-09-01), Belanger
patent: 5229700 (1993-07-01), Stitt et al.
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patent: 5493195 (1996-02-01), Heglund et al.
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Serial No. 08/516,079 (GE docket No. 20-LC-1823), "Use of Traction Inverter for Cranking the Engine in an AC Locomotive", AK Kumar; RF Griebel, filed Aug. 17, 1995.

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