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With the aid of genetic algorithm (GA), global optimization with multiple geometry parameters are feasible in the design of switched flux permanent magnet (SFPM) machine. To investigate the advantages of global optimization over individual one, which has been used extensively for the design of SFPM machines, the comparisons between two approaches are carried out at the fixed copper loss and volume...
Linear flat switched flux permanent magnet (SFPM) brushless machines have significant potential for many applications including transportation, automobile and aerospace. Novel E-core and C-core linear SFPM machines are proposed and optimized by individual parameter optimization, when the copper loss and volume is fixed, in this paper by finite element (FE) analysis. Then, the results of the individual...
The torque ripple of a PM synchronous motor (PMSM) originates from two sources; the cogging torque and mismatch between the back EMF and phase current waveforms. The first source is only related to the magnetic design parameters of PMSM and the second source is related to the effect of the driving circuit on the magnetic design parameters. Therefore, achieving a minimum torque ripple requires a hybrid...
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