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Electrically excited synchronous motors (EESM) are designed to have high power density for electric vehicle (EV) applications. Thus, severe nonlinearity is observed during high torque operation. The nonlinearity associated with core saturation is modeled by incorporating the cross coupling inductances which also behave nonlinearly. The analytic torque equation with the cross coupling inductances yielded...
This paper presents a generic vector model for the brushless doubly-fed machine (BDFM) with a nested-loop rotor. The vector model is presented for a generic p1/p2 pole-pair BDFM which may have any number of loops per nest. The vector transformations utilized in the derivation of the vector model are provided in general form such that the model can be represented in any appropriate reference frames...
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