Online characterization of switched reluctance motors

An online characterization of switched reluctance motor (SRM) including the mutual coupling effects, magnetic saturation and parameters variation, is developed in this paper. The optimization of the SRM performances in terms of efficiency and high power density requires an accurate and less-complicated model. The model building can be used for simulation, control, and diagnosis purposes based on the observed phase currents, voltages and rotor position measurements only, which are accessible in normal operating regime, without need of any prior knowledge of the motor parameters. Compared to the existing methods, the developed characterization scheme is automatic, transparent to the vehicle passengers, and takes into account the trade-off between accuracy and complexity. The effectiveness of this method is demonstrated by simulation within an automotive application.

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