H - Electricity – 02 – P
Patent
H - Electricity
02
P
322/35, 310/36
H02P 9/42 (2006.01) H02P 9/00 (2006.01)
Patent
CA 1249630
ABSTRACT OF THE DISCLOSURE In a pumping-up generator/motor system comprising an induction generator/motor, at least one cyclo-converter connected to the secondary winding of the induction generator motor for controlling the rotational speed of the generator/motor in the motor mode and for maintaining the output frequency thereof in the generator mode at a constant level, the center of the speed range of the generator/motor in the generator mode is set near the synchronous speed thereof and a plurality of converter units constituting each cyclo- converter are connected in parallel in the generator mode, and in series in the motor mode thereby allowing the capacity of the cyclo-converter to be made smaller.
506641
Bando Akira
Haraguchi Eiji
Kashiwazaki Hiroshi
Nakagawa Hiroto
Ono Kenichi
Hitachi Ltd.
Kirby Eades Gale Baker
The Kansai Electric Power Co. Inc.
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