HARMONIC LOSSES OF SINGLE-PHASE INDUCTION-MOTORS UNDER NONSINUSOIDAL VOLTAGES

Parameters of a capacitor-start, capacitor-run single-phase induction motor with closed or semi-closed rotor slots are measured and a model for the investigation of the performance of the machine in the frequen cy domain under the influence of harmonic voltages is presented, An al gorithm taking into account the nonlinear rotor leakage inductance is established, This algorithm is applied to estimate the current in the time domain, and the harmonic losses at rated-load operation without a nd with run capacitors are calculated, Computational results are compa red with those from experimentation and the differences between both a re discussed.