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Optimal shape design of iron core to reduce cogging torque of IPM motor
IEEE transactions on magnetics
This paper presents a practical design method to dramatically reduce cogging torque of an interior permanent-magnet (IPM) motor without deteriorating other performances. Using the continuum sensitivity analysis combined with the finite-element method (FEM), the optimal shape of a rotor is investigated. The Lagrange sliding interface technique and an objective function expressed in terms of stored system energy allow fast convergence and simple implementation of the optimization algorithm.doi:10.1109/tmag.2003.810214 fatcat:4f4y5zv6uzfyrpsrrtxicjmrau