Polyphase machine fed by a pulse-controlled a.c. converter

Details Polyphase machine fed by a pulse-controlled a.c. converter Polyphase machine fed by a pulse-controlled a.c. converter

H - Electricity

02

P

318/114, 318/94,

H02P 25/02 (2006.01)

Patent

CA 1302485

ABSTRACT OF THE DISCLOSURE A polyphase machine fed by a pulse-controlled a.c. converter in which the current is controlled between rectangular and sine-shaped waveforms in each half cycle. according to the required torque. Independently of the current control, the active number of phase windings is reduced as a function of the rotational speed of the machine.

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