Design optimization of an interior-type permanent magnet BLDC motor using PSO and improved MEC

Publication Type:
Conference Proceeding
Proceeding of International Conference on Electrical Machines and Systems, ICEMS 2007, 2007, pp. 1350 - 1353
Issue Date:
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In this paper, an improved magnetic equivalent circuit (MEC) is applied to calculate the nonlinear magnetic field in an interior-type permanent-magnet (IPM) brushless DC (BLDC) motor. Compared with the finite element method, the MEC method is much more time efficient, whereas compared with the conventional MEC method, the improved MEC is more accurate since it takes the complicate topological structure of the motor into account. A rough design of the IPM BLDC motor was firstly conducted by the improved MEC method. The particle swarm optimization (PSO) algorithm is then employed to refine the design for optimal structural parameters that result in the lowest cost and highest performance.
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