Electricity: motive power systems – Induction motor systems – With voltage source connected to motor secondary
Patent
1981-01-29
1983-05-24
Smith, Jr., David
Electricity: motive power systems
Induction motor systems
With voltage source connected to motor secondary
318762, 318809, H02P 540
Patent
active
043852688
ABSTRACT:
SCR devices replace the usual diodes of the rectifier bridge section of a wound-rotor slip-recovery system motor drive, and by selection of the retardation angle of the SCR's between either zero or close to 180.degree., two-quadrant operation is made possible, which includes reverse torque and reverse rotation, while controlling the retardation angle of the power line bridge of SCR's.
REFERENCES:
patent: 3675099 (1972-07-01), Johnston
patent: 4091294 (1978-05-01), Zankl et al.
patent: 4186435 (1980-01-01), Cailloux
Maag, R. B., "Characteristics and Application of Current Source/Slip Regulated AC Induction Motor Drives" IEEE-IAG-Annual Meeting, Cleveland, Ohio Oct. 18-21.
Phillips, K. P. "Current-Source Converter For AC Motor Drives" IEEE Transactions on Industry Aplications, vol. IA-8, No. 6, Nov./Dec. 1972, pp. 679-683.
Murphy, J. M. D., Thyristor Control of AC Motors, Pergamon Press, 1973, pp. 161-169.
Le-Huy et al., "Microprocessor Control of a Current FED Synchronous Motor Drive" Conference: Industry Applications Society IEEE-IAS Annual Meeting, Cleveland, OH, USA, Sep. 30-Oct. 4, 1979.
Herbert Roger B.
Herchenroeder Louis W.
Lorin C. M.
Smith Jr. David
Westinghouse Electric Corp.
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