Electric power converter circuit

Details Electric power converter circuit Electric power converter circuit

H - Electricity

02

P

318/93

H02P 7/06 (2006.01) H02M 7/527 (2006.01)

Patent

CA 1192607

A B S T R A C T A multi-phase switched variable-reluctance motor having a number of phase windings (A,B,C) each connected in series with at least one main thyristor (1,2,3,4,5,6) across a D..V supply (Vs), has 5. commutating means (C1, C2, 7 & 8) arranged to commutate the various thyristors, and timing means (23) responsive to the current in the different windings, the angular position of the rotor , the state of the main thyristors the motor speed, and the desired operating condition, to 10. control the firing and commutation of the main thyristors. Two modes of operation described in detail are a chopping mode in which chopping is controlled independently in two adjacent phase at the same time, and a single pulse mode with free-wheeling.

410892

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