Controlling the speed of an induction motor by resonating the rotor circuit

The possibility of obtaining various torque-speed characteristics from a wound-rotor induction motor by operating such a motor close to its rotor resonance is described. It is shown that, by the use of reactive rotor networks, high starting and braking torques may be obtained. An induction motor ope...

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Veröffentlicht in:IEEE transactions on industry applications 1995-07, Vol.31 (4), p.887-891
Hauptverfasser: REINERT, J, PRASLEY, G. M. J
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creator REINERT, J
PRASLEY, G. M. J
description The possibility of obtaining various torque-speed characteristics from a wound-rotor induction motor by operating such a motor close to its rotor resonance is described. It is shown that, by the use of reactive rotor networks, high starting and braking torques may be obtained. An induction motor operating with this proposed technique of speed control also reacts favorably to nonsinusoidal supply voltages and has an improved power factor. No auxiliary machines or power supplies are required and any slip ring induction motor of conventional design can be used.
doi_str_mv 10.1109/28.395300
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ispartof IEEE transactions on industry applications, 1995-07, Vol.31 (4), p.887-891
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1939-9367
language eng
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source IEEE Electronic Library (IEL)
subjects Applied sciences
Capacitance
Electric currents
Electric power factor
Electric resistance
Electric waveforms
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
Regulation and control
Resonance
Resonant circuits
Rotors (windings)
Speed control
Torque
title Controlling the speed of an induction motor by resonating the rotor circuit
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