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首页> 外文期刊>Compel >A simple on-line harmonics elimination PWM algorithm for a three-phase voltage source inverter based on quadratic curve fittings
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A simple on-line harmonics elimination PWM algorithm for a three-phase voltage source inverter based on quadratic curve fittings

机译：基于二次曲线拟合的三相电压源逆变器在线谐波消除简单算法

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摘要

Purpose - The purpose of this paper is to propose an on-line algorithm to calculate the switching angles of the harmonics elimination pulse-width modulation (HEPWM) scheme that can be suitably implemented using a simple microprocessor/microcontroller. It is to be used for three-phase voltage source inverter (VSI).rnDesign/methodology/approach - Approximate equations for the HEPWM angles are obtained by performing quadratic curve fittings of the trajectories of the exact HEPWM angles. This paper aims to obtain approximate equation that can be programmed on-line using microprocessor/microcontroller. Findings - The main feature of the algorithm is simplicity, whereby only addition and multiplications functions are required. It shall be shown that the proposed scheme allows for an efficient real-time computation with acceptable error margins. The workability of the algorithm is validated with hardware results.rnPractical implications - Since the algorithm allows for on-line changes of the number of harmonics to be eliminated and an independent control of the fundamental component of the VSI, it is very suitable for motor drive applications.rnOriginality/value - Owing to the transcendental nature of the HEPWM equations, the exact solution for the switching angles requires vast computing power. The quadratic curve fitting method proposed in this paper simplifies the angle calculations to only multiplication and addition functions. It can be easily implemented using a simple microprocessor/microcontroller.
机译：目的-本文的目的是提出一种在线算法来计算谐波消除脉冲宽度调制（HEPWM）方案的开关角，该方案可以使用简单的微处理器/微控制器适当地实现。它可用于三相电压源逆变器（VSI）。rn设计/方法/方法-通过对精确的HEPWM角度的轨迹进行二次曲线拟合，可获得HEPWM角度的近似方程。本文旨在获得可以使用微处理器/微控制器在线编程的近似方程。结果-算法的主要特征是简单性，因此仅需要加法和乘法功能。应当表明，所提出的方案允许以可接受的误差余量进行有效的实时计算。该算法的可操作性已通过硬件结果验证。rn实际意义-由于该算法可以消除谐波数量的在线变化，并且可以独立控制VSI的基本分量，因此非常适合电机驱动applications.rnOriginality / value-由于HEPWM方程的先验性质，对于开关角度的精确解需要巨大的计算能力。本文提出的二次曲线拟合方法将角度计算简化为仅​​乘法和加法函数。使用简单的微处理器/微控制器即可轻松实现。

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  • 来源
    《Compel》 |2010年第3期|P.727-744|共18页
  • 作者

    Z. Salam;

  • 作者单位

    Power Electronics and Drives Research Group, Faculty of Electrical Engineering,Universiti Teknologi Malaysia, Johor Bahru, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    electronic engineering; harmonics; programming and algorithm theory;

    机译：电子工程;谐波;编程与算法理论;

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