Holistic Modeling of High-Frequency Behavior of Inverter-Fed Machine Winding, Considering Mutual Couplings in Time Domain

Prediction of the voltage distribution within winding due to pulsewidth modulated impinging at machine terminals is prevalent in literature. For this purpose, state-of-art work employs a high-frequency model stator but fails represent mutual inductive and resistive couplings between turns coil. Herein, article proposes multiconductor transmission line for representing behavior winding. A distinctive feature proposed that it incorporates coupling coils using current-dependent source with account frequency-dependent parameters form ladder network. It enables modeling both single multilayer time domain without explicit use modal transformation, convolution integral, or inverse Fourier transform. The close agreement simulation experimental results validates an automotive-grade 60-kW permanent magnet synchronous adapted Toyota Prius vehicle. In addition, more intuitive analytical explain characterize peak stress can be used predict as alternative model.