Accounting for Slot Harmonics and Nonsinusoidal Unbalanced Voltage Supply in High-Speed Solid-Rotor Induction Motor Using Complex Multi-Harmonic Finite Element Analysis

Solid rotor induction machines are still used in high-speed systems. A two-dimensional field-circuit model based on the finite element method and complex magnetic vector potential has been shown as a very time-effective tool analysis of their steady states compared to time-domain models. This continuation work presents validated computational algorithm that enables inclusion nonsinusoidal and/or asymmetrical voltage supply multi-harmonic these was presented previous works by authors. The extended accounts for both spatial harmonics due slotting winding distribution time-harmonics waveform. applicability range therefore increases cases when machine is supplied with three-phase system voltages symmetry or asymmetry can be decomposed into three symmetrical components. Its short execution time characteristic allows much more insightful design studies contribution supply- slotting-related overall efficiency than possible time-consuming proposed framework never literature. verified positively comprehensive model. It especially useful solid motors related optimisation motor-based drive