Abstract In the electric traction transmission system, subject to the maximum switching frequency and output voltage and current harmonic performance, a special optimized pulse width modulation strategy is generally required. The selected harmonic elimination PWM eliminates the lower-order harmonics so the interference of motor torque will decrease. In this paper, the basic principles of SHE-PWM (selected harmonic elimination PWM) technology are studied; meanwhile, the method of using MATLAB to calculate switching angle is introduced. Then, the limitation of SHE-PWM based on DSP and the advantage based on FPGA are analyzed. Besides, the frequency conversion speed control system based on the SHE-PWM algorithm is completed through the FPGA, and the experimental results verify the theoretical analysis of SHE-PWM.


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    Title :

    The Selected Harmonic Elimination PWM Strategy Based on FPGA


    Contributors:
    Huang, Shaoliang (author) / Diao, Lijun (author) / Bai, Xue (author) / Liu, Zhigang (author)


    Edition :

    1st ed. 2016


    Publication date :

    2016-01-01


    Size :

    9 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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