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Fast Analytical Determination of Aligned and Unaligned Flux Linkage in Switched Reluctance Motors Based on a Magnetic Circuit Model

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3 Author(s)
Shang-Hsun Mao ; Electr. Motor Technol. Res. Center, Nat. Cheng Kung Univ., Tainan ; Dorrell, D. ; Mi-Ching Tsai

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.

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Magnetics, IEEE Transactions on  (Volume:45 ,  Issue: 7 )