王逸林,吴振兴,郑欣良,冀相.载波移相对直线电机高频振动抑制的研究[J].电测与仪表,2020,57(2):21-25. Wang Yilin,Wu Zhenxing,Zheng Xingliang,Huang Chuibing.Vibration reduction control using carrier phase shifted for linear motor fed by fual PWM inverters[J].Electrical Measurement & Instrumentation,2020,57(2):21-25.
载波移相对直线电机高频振动抑制的研究
Vibration reduction control using carrier phase shifted for linear motor fed by fual PWM inverters
In the PWM drive motor system, high frequency vibration occurs when the power element switches. Aiming at the problem of high frequency vibration in multiphase linear motor, carrier phase shifting technique is proposed to reduce noise. First, according to the relationship between the motor vibration and the magnetomotive force, The formula for calculating the MMF is deduced. The conclusion is that the amplitude of the high frequency component of the motor synthesis magnetomotive force is effectively counteracted by adjusting the carrier shifted angle. The option of the optimal phase shifting angle is analyzed, and finally the conclusion that 180° is the optimal shift angle is verified by simulations.
