Advanced Circuit Approach for Induction Machines Parametrized by Field Calculations

The paper introduces an electromagnetic model of induction machines based on a circuit representation with state-dependent parameters precalculated in an automatable set of magnetostatic calculations. In contrast to usual circuit approaches, the proposed technique considers both saturation and the impacts of slotting as well as the effects of the distributed stator winding. The quality of the results is comparable to those achieved by full time-stepping field calculations, while simulation time is substantially lower. The paper discusses the details of the model and is completed by demonstrations of its accuracy in numerical examples.