Abstract
This paper focuses on the optimization of magnetic flux linkage in permanent magnet synchronous motor (PMSM). A new compact representation of the PMSM nonlinear dynamic differential equations is established to reduce the complexity of system parameters. Afterwards, in order to avoid the unstable of the system, the complicated nonlinear dynamic behavior of PMSM is analyzed in detail with variation of parameters μ and Meanwhile, the nonlinear dynamic characteristics of novel PMSM equations in the process of magnetic flux linkage changing are further considered, and the magnetic flux linkage stable region of PMSM is obtained concurrently. In addition, according to the practical design requirements and the analysis results, a 30kW PMSM 2D/3D model is designed by ANSYS. Finally, the optimum value of flux linkage and the corresponding permanent magnet specifications and dimensions are obtained to illustrate the effectiveness and feasibility of our theory result.
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