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Provided with the reduction of the cogging torque by skewing slots and simultaneously the decent output performance, an analysis of a permanent magnet synchronous generator (PMSG) is proposed in this paper. Firstly, the best skewing angle with the lowest cogging torque is found and validated with the finite element method (FEM) software, ANSYS/Maxwell. To overcome the repellence of the cogging torque...
This paper investigates the cogging torque and torque ripple features of a permanent magnet flux switching (PMFS) integrated-starter-generator (ISG). The effects of the rotor pole arc width on cogging torque, torque ripple and output torque are first established using finite element analysis (FEA). Three torque ripple reduction techniques based on the optimization of three different rotor pole configurations...
In this paper a set PM machine designs with the same level output characteristics were studied. This study covers the influence of the various types of windings arrangements, varying the number of slots, and pole width as design parameters on the cogging torque, back EMF, flux linkages, total torque, and speed of PM motor. These parameters were 2D finite element solution. A phase variable model for...
This paper deals with experimental works and analysis for influence of stator slot number on performance of interior PM (IPM) motor. First, for a conventional 6-pole IPM rotor, stators with 18, 27 and 36 slots satisfied with same required and restricted conditions are designed. And then, performances and parameters of each IPM motor such as cogging torque, torque ripple, d- and q- axis inductance,...
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