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Initial conditions for a transient steady-state induction machine simulation based on time-harmonic and multi-harmonic solutions

Garbiec Tomasz

Archives of Electrical Engineering

2025

Vol. 74, nr 2

361--373

The paper presents the results of the author’s research on effectively determining the initial conditions for the time-stepping model of a high-speed inverter-driven induction machine. The classical time-harmonic and multi-harmonic models based on the multidimensional effective magnetic permeability were used and compared as a preconditioner for the time-stepping model to speed up the steady-state solution. The carried-out simulation experiment proved that using both approaches radically accelerates computations. Furthermore, it has been shown that the multi-harmonic model is much more effective for problems with strong harmonic effects.