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A new efficiency optimization method on induction motor control which does not require extra hardware and is insensitive to motor parameters is presented in the paper. The relationship between the stator current minimum and the loss minimum in the vector control system is investigated. A fuzzy logic based search method is implemented by TMS320F2812 fixed-point DSP. Simulation and experimental results...
A finite element method using curvilinear elements is presented for modeling the sliding surface in rotating electric machines. The advantage of the proposed method is that the mesh has the same curved shape as the geometry and thus numerical accuracy is improved when connecting the stator mesh and the rotor mesh across a sliding surface. The procedure is applied to the computation of cogging torque...
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