B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
B60L 15/06 (2006.01) B06B 1/02 (2006.01) B60L 11/18 (2006.01) H02K 16/00 (2006.01) H02K 16/02 (2006.01)
Patent
CA 2097972
ABSTRACT OF THE DISCLOSURE An AC variable speed driving apparatus including an AC motor and an inverter for driving the motor. The AC motor includes a synchronous motor and an induction motor. The synchronous motor includes a first stator windings and a first rotor having a permanent magnet. The induction motor includes a second stator windings and a second rotor. The first and second stator windings are disposed so that they do not magnetically interfere with each other. The first and second rotors are mounted on a common axis of rotation. The inverter supplies AC power to the stator windings so that the synchronous motor and the induction motor are driven independently. A highly efficient, large output and low cost system can be realized in a wide speed range.
Fujita Kouetsu
Ito Yoshio
Kinoshita Shigenori
Motoyoshi Osamu
Yanase Takao
Blake Cassels & Graydon Llp
Fuji Electric Co. Ltd.
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