System for use with an electronically commutated electrical mach

Details System for use with an electronically commutated electrical mach System for use with an electronically commutated electrical mach

1993-07-23

1995-01-31

Shoop, Jr., William M.

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318138, 318254, 318439, 318787, H02P 146

Patent

active

053861841

ABSTRACT:
A modified inverter/converter unit electronically commutates a switched reluctance machine to provide multiple voltage levels for engine and aircraft applications. A set of power switching transistors apply an exciting current to windings in the switched reluctance machine to produce power at a first voltage level. Additional voltage levels may be provided by using the turns ratio from one or more transformers and the switching frequency from the power switching transistors. Alternatively, additional voltage levels may be provided by using windings of a plurality of transformers internal to the switched reluctance machine.

REFERENCES:
patent: 4682093 (1987-07-01), Murphy et al.
patent: 4983902 (1991-01-01), Palaniappan et al.
patent: 5150028 (1992-09-01), Palaniappan
patent: 5180960 (1993-01-01), Austermann
patent: 5204604 (1993-04-01), Radun
patent: 5223779 (1993-06-01), Palaniappan

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