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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Performance and Evaluation of Five-Phase Dual Random SVPWM Strategy With Optimized Probability Density Function
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Performance and Evaluation of Five-Phase Dual Random SVPWM Strategy With Optimized Probability Density Function

机译：优化的概率密度函数的五相双随机SVPWM策略的性能和评估

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摘要

This paper presents a five-phase dual random space vector pulsewidth modulation (FPDR-SVPWM) strategy with an optimized probability density function (PDF) for a five-phase voltage-source inverter, and its performance and evaluation are also analyzed. Based on the nearest four vectors modulation method, the FPDR-SVPWM strategy, combined with random switching frequency and random zero vector, is investigated to significantly reduce the amplitude of high-order harmonics near the switching frequency and its integer multiples. For the nonsinusoidal power supply, third harmonic injection is introduced in this modulation strategy as well. Considering the effect of random numbers on the performance, an optimized Beta distribution is studied in detail. In order to analyze harmonic dispersion degree qualitatively and quantitatively, the power spectral density and the harmonic spread factor are both employed to assess the performance of the FPDR-SVPWM strategy. A series of results of simulation in MATLAB and experiments based on field programmable gate array demonstrate that the proposed modulation strategy is correct and valid, and it distributes high-order harmonics into a wide range without affecting the fundamental wave and third harmonic.
机译：针对五相电压源逆变器，提出了一种具有优化概率密度函数（PDF）的五相双随机空间矢量脉宽调制（FPDR-SVPWM）策略，并对其性能和评估进行了分析。基于最接近的四矢量调制方法，研究了结合随机开关频率和随机零矢量的FPDR-SVPWM策略，以显着减小开关频率及其整数倍附近的高次谐波幅度。对于非正弦电源，在此调制策略中也引入了三次谐波注入。考虑到随机数对性能的影响，详细研究了优化的Beta分布。为了定性和定量地分析谐波的分散程度，功率谱密度和谐波扩展因子均用于评估FPDR-SVPWM策略的性能。在MATLAB中进行的一系列仿真结果以及基于现场可编程门阵列的实验表明，所提出的调制策略是正确有效的，并且可以在不影响基波和三次谐波的情况下将高次谐波分布到较宽的范围内。

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  • 来源
    《IEEE Transactions on Industrial Electronics》 |2019年第5期|3323-3332|共10页
  • 作者

    Bu Feifei; Pu Tianyu; Huang Wenxin; Zhu Lin;

  • 作者单位

    Nanjing Univ Aeronaut & Astronaut, Key Lab New Energy Generat & Power Convers Jiangs, Ctr More Elect Aircraft Power Syst, Nanjing 211106, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Key Lab New Energy Generat & Power Convers Jiangs, Ctr More Elect Aircraft Power Syst, Nanjing 211106, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Key Lab New Energy Generat & Power Convers Jiangs, Ctr More Elect Aircraft Power Syst, Nanjing 211106, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Key Lab New Energy Generat & Power Convers Jiangs, Ctr More Elect Aircraft Power Syst, Nanjing 211106, Jiangsu, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Dual random SVPWM; five-phase inverter; harmonic spread factor (HSF); probability density function (PDF); third harmonic injection;

    机译：双随机SVPWM;三相逆变器;谐波扩展因子（HSF）;概率密度函数（PDF）;三次谐波注入;

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