Fast analytical determination of aligned and unaligned flux linkage in switched reluctance motors based on a magnetic circuit model

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Journal Article
IEEE Transactions on Magnetics, 2009, 45 (7), pp. 2935 - 2942
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The main advantages of the switched reluctance motor are high torque, wide speed range, simple structure and fault tolerance. Because a switched reluctance motor has inherently nonlinear magnetic characteristics and a doubly salient pole structure, a finite-element analysis approach (FEA) is often adopted to obtain accurate magnetic representation. However, the solution time can be large for a FEA simulation if the mesh is detailed and/or many simulations are required. We propose a rapid analytical solution for determining the aligned and unaligned flux linkage using a magnetic circuit model. We present a simple method for obtaining the air-gap permeance for unaligned linkage. The results of our method agree well with FEA solutions. © 2006 IEEE.
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