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This paper proposes a design optimization procedure of a PMSM rotor. In the process of optimization, the shape and the size of the permanent magnet is considered constant while the distribution of electric steel and voids (air) in the rotor are variables contributing to the final objective. For the gradient search the “Method of Moving Asymptotes” algorithm is applied to the rotor design of an internal...
Several methods of estimating the annual energy losses due to iron losses in wind turbine generators are investigated in this paper. Utilizing a high amount of transient finite-element solutions is first demonstrated. Usage of a space-time transformation for prediction of iron losses is also shown. The methods, which use varying amounts of simulation results and computational resources, are compared...
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