Research on Weakening Cogging Torque of Permanent Magnet Synchronous Wind Generator
springer
Abstract
In order to weaken the cogging torque of the permanent magnet synchronous wind generator, firstly, the mathematical model analysis of the cogging torque of permanent magnet machine is carried out, and the influence of the pole–slot matching on the cogging torque is studied, and the appropriate pole–slot matching is selected. Secondly, based on the selection of pole–slot match, the finite element simulation was carried out by ANSOFT, and the influence of the inclined slot and stator slot width on cogging torque and no-load induced voltage of the generator was analyzed. The simulation results show that the reasonable selection of the stator slot width and the inclined slot can effectively reduce the cogging torque of the generator and also optimize the no-load voltage.
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Key words
Cogging torque, Wind generator, Finite element analysis
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