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A Comprehensive Modeling of a Three-Phase Voltage Source PWM Converter

机译：三相电压源PWM转换器的综合建模

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摘要

This contribution reports the development of a time domain model of a three-phase voltage source converter (VSC) that can be used in the transient and steady state analysis of nonlinear power systems including their associated closed-loop control schemes. With this proposed model, the original discontinuous nonlinear power system can be transformed into a continuous system, while keeping the underlying harmonic nature of the VSC and avoiding typical and undesirable numerical problems associated with the large derivatives during the switching transitions. The development of this model was based on the dynamic Fourier series of the switching functions under a sinusoidal PWM modulation scheme, which require the calculation of the switching instants at each integration step; the switching instants and the dynamic Fourier series coefficients are calculated by explicit mathematical formulas. The proposed model of the VSC is suitable for the fast computation of the periodic steady state solution through the application of Newton method. Simulations were carried out in order to illustrate the benefits of the proposed VSC model.
机译：此文稿报告了三相电压源转换器（VSC）的时域模型的开发，该模型可用于非线性电力系统的瞬态和稳态分析，包括其相关的闭环控制方案。使用该提出的模型，可以将原始的不连续非线性电力系统转换为连续系统，同时保持VSC的基本谐波特性，并避免与转换过渡期间的大导数相关的典型和不良数值问题。该模型的开发基于正弦PWM调制方案下开关函数的动态傅里叶级数，该函数需要计算每个积分步骤的开关时刻；开关时刻和动态傅里叶级数系数​​通过显式数学公式计算。通过牛顿法的应用，所提出的VSC模型适用于周期稳态解的快速计算。为了说明所提出的VSC模型的好处，进行了仿真。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第12期|426245.1-426245.11|共11页
  • 作者

    Segundo-Ramirez Juan; Pena-Gallardo Rafael; Medina Aurelio; Nunez-Gutierrez Ciro; Visairo-Cruz Nancy;

  • 作者单位

    Univ Autonoma San Luis Potosi, Fac Ingn, San Luis Potosi 78290, SLP, Mexico.;

    Univ Autonoma San Luis Potosi, Fac Ingn, San Luis Potosi 78290, SLP, Mexico.;

    Univ Michoacana, Fac Ingn Elect, Div Estudios Posgrado, Morelia 58030, MICH, Mexico.;

    Univ Autonoma San Luis Potosi, Fac Ingn, San Luis Potosi 78290, SLP, Mexico.;

    Univ Autonoma San Luis Potosi, Fac Ingn, San Luis Potosi 78290, SLP, Mexico.;

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