![]() ![]() ![]() IEEEĀ® Industrial Application Society annual meeting conference records, pp. A single-phase induction motor has the following data: 1 hp, two pole, 240 V, 60 Hz, stator-winding resistance R S1.6. COLLINS, E.R., PUTTGEN, H.B., and SYLE, W.E.'Single-Phase Induction Motor Adjustable Speed Drive: Drive Phase Angle Control Of the Auxiliary Winding Supply'. ![]() These currents are in quadrature and their magnitude ratio is equal to the ratio N of number of turns of auxiliary and main windings. Also observe the auxiliary and winding currents. Observe that torque ripples are substantially mitigated at all operating points. The machine starts at no load and then at t=1.0 sec, once the machine has reached its steady state, the load torque is increased to its nominal value (1 N.m) in 0.5 sec. The voltage control loop uses a proportional-integral-derivative (PID) controller. By varying the auxiliary winding voltage magnitude and phase, the torque ripples are alleviated at all operating points. The reference values of the magnitude and phase of voltage applied to the auxiliary winding are computed by the Reference Voltage block. The auxiliary winding is fed by a H-bridge IGBT inverter connected to a rectifier. The motor's main winding is directly connected to the 110 V utility supply. ![]()
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