A comparative study between SPWM and SHE-PWM modulation techniques for DC-AC inverters

2017 IEEE 3rd International Conference on Engineering Technologies and Social Sciences (ICETSS) Pub Date : 2017-08-07 DOI:10.1109/ICETSS.2017.8324191

E. Aboadla, T. Majdee, Khairil A. Bin Aznan, A. Khalil, Sheroz Khan, M. H. Habaebi, T. Gunawan, B. A. Hamidah, M. Yaacob

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引用次数: 2

Abstract

DC-AC Inverters are basically used to convert renewable sources DC, like solar energy or storage batteries into AC power. However, the outputs of these converters contain undesirable harmonic distortion due to the ON and OFF switching. There are a number of modulation schemes employed to control ON-OFF the switching of IGBT (or MOSFET) of Inverters and to mitigate these harmonics effectively. The most popular modulation methods in this regard are Sinusoidal Puls Width Modulation (SPWM) and Selective Harmonics Elimination Puls Width Modulation (SHE-PWM). The common parameters between two techniques are modulation index and the number of pulses. A minimum Total Harmonic Distortion (THD) is used as a criterion to comparing results by both techniques. This paper demonstrates the comparison between SPWM and SHE-PWM implemented in the unipolar inverter. To assess and validate the utility of the techniques, simulation results are obtained using MATLAB software.

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直流-交流逆变器SPWM与SHE-PWM调制技术的比较研究

直流-交流逆变器基本上用于将可再生能源DC转换为交流电源，如太阳能或蓄电池。然而，这些转换器的输出由于ON和OFF开关而包含不希望的谐波失真。有许多调制方案用于控制逆变器的IGBT(或MOSFET)的通断开关，并有效地减轻这些谐波。在这方面最流行的调制方法是正弦脉宽调制(SPWM)和选择性谐波消除脉宽调制(he - pwm)。两种技术的共同参数是调制指数和脉冲数。用最小总谐波失真(THD)作为标准来比较两种技术的结果。本文演示了SPWM和SHE-PWM在单极逆变器中实现的比较。为了评估和验证这些技术的实用性，使用MATLAB软件获得了仿真结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 IEEE 3rd International Conference on Engineering Technologies and Social Sciences (ICETSS)

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