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《Micromotors》 2019-06
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Analysis on the Effect of Nonsine Current Input on the Performance of Permanent Magnetic Brushless Motor

ZHANG Liang;WANG Yanping;Xi'an Micromotor Research Institute;  
In modern servo drive system, using three-phase voltage source inverter pulse width modulation(PWM) technology to drive and control permanent magnet brushless motor has become the main technical way. In this paper, the performance of a 10-pole 12-slot 750 W permanent magnet brushless motor with standard sinusoidal and non-sinusoidal current input with more high-order harmonics was studied by using finite element simulation tools. By setting the equivalent model and optimizing the simulation parameters, the difference of the main characteristics of the motor can be obtained by choosing the grid size. The reasons for the large number and magnitude of disagreement points were analyzed, and the principle of mesh generation to satisfy the engineering results was given.
【CateGory Index】: TM351
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