Electricity: motive power systems – Induction motor systems – Braking
Patent
1982-06-16
1984-02-28
Truhe, J. V.
Electricity: motive power systems
Induction motor systems
Braking
318762, 363 58, H02P 762, H02M 5458
Patent
active
044343930
ABSTRACT:
A control circuit for driving an induction motor wherein an AC voltage is converted into a direct current by a rectifying circuit and the direct current is converted into a signal having a variable voltage and frequency by a transistor inverter connected in parallel with a smoothing capacitor, and a regenerative circuit is connected in parallel with the inverter, and a circuit is provided for comparing the terminal voltage V.sub.C of the smoothing capacitor and a reference voltage V.sub.r when braking is to take place is disclosed. When condition V.sub.C .gtoreq.V.sub.r exists, the transistor inverter is disabled but the regenerative circuit is allowed to operate; when the condition V.sub.C <V.sub.r exists, the transistor inverter is operated in the regenerative braking mode.
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patent: 4295086 (1981-10-01), Cutler et al.
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IEEE Transactions on Industry Applications, vol. IA-14, No. 4, Jul./Aug. 1978, New York, U.S.A., J. W. A. Wilson, "Inverter Motor Drive", pp. 330 to 335.
Ishida Hiroshi
Kobari Katsuo
Ota Naoto
Evans A.
Fujitsu Fanuc Limited
Truhe J. V.
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