VSI和基于矩阵变换器的wcs中总谐波畸变的比较研究

2018 Fourth International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB) Pub Date : 2018-02-01 DOI:10.1109/AEEICB.2018.8481002

B. Kandavel, G. Uvaraj, M. Manikandan, R. Gobi

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引用次数: 0

摘要

本文比较研究了采用PI和模糊控制器(FLC)的两电平变换器或电压源逆变器和基于矩阵变换器的双馈感应发电机(DFIG)在无电网和有电网情况下的总谐波失真(THD)及其个别谐波含量。一种简单的方法来控制变速风能转换系统与DFIG通过一个二极管整流器和电压源逆变器连接到电网。通过DC-DC升压转换器控制直流链路电压，使直流电压保持恒定值。逆变器采用正弦脉宽调制技术控制，向电网供电。研究了THD及其谐波含量。接下来，发电机通过矩阵转换器(MC)直接与电网相连。对空间矢量调制技术进行了应用和研究。利用MATLAB/SIMULINK进行了仿真。研究并比较了THD及其各次谐波含量。

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Comparative Study of Total Harmonic Distortionin VSI and Matrix Converter based WECS

This paper presents comparative study ofTotal Harmonic Distortion(THD) and its individual harmonic contents without grid and with grid for two level converter or voltage source Inverter and Matrix converter based Doubly Fed Induction Generator (DFIG) employing PI and Fuzzy logic controller(FLC).A simple method to control for a variable speed wind energy conversion system with a DFIG is connected to the grid through a diode rectifier and a voltage source inverter. The DC-link voltage is controlled through a DC-DC boost converter to keep the DC voltage at constant value. Inverter is controlled by sinusoidal pulse width modulation technique, which supplies power to the grid. The THD and its harmonic content are studied. Next the generator is connected directly to the grid through a Matrix Converter (MC). The Space Vector Modulation(SVM)technique is applied and studied. Simulation results have been performed using MATLAB/SIMULINK. The THD and its individual harmonic contents are studied and compared.

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2018 Fourth International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB)

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