基于自适应理论谐波检测的电气化铁路有源滤波器仿真研究

作者:王艳姣;陈保平;袁瑞雪;张守梁 刊名:石河子大学学报:自然科学版 上传者:郑海燕

【摘要】随着我国电气化铁路进程的不断推进, 所带来的电能质量问题日益严重, 主要表现为负载电流中谐波电流和无功电流含量高, 不仅会损坏电气设备、 影响电力机车正常运行, 还会对电网造成严重危害.本文针对以上问题, 研究了适用于电气化铁路谐波补偿的混合型有源电力滤波器.本文分析有源滤波器的基本原理, 结合电气化铁路负荷特性确定了有源电力滤波器 (APF) 的拓扑结构; 研究了自适应谐波检测算法, 利用 MATLAB 建立了电力机车电流源模型,并对谐波检测算法进行仿真; 分析了控制策略, 采用直流侧电压控制方法; 对整个混合型 APF 系统进行了仿真,证明其具有良好的谐波补偿性能.

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Simulation research of electric railway active filter based on adaptive theory harmonic detection Wang Yanjiao袁Chen Baoping*袁Yuan Ruixue袁Zhang Shouliang 渊Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050043袁China冤 Abstract院 With the continuous progress of China's electrified railway process, the problem of power quality is becoming more and more prominent, which is main part for the high content of harmonic current and reactive current in the load current. It will not only damage electrical equipment and affect the normal operation of electric locomotives, but also cause pollution to the power grid. In the light of the problems above, this paper did research in the hybrid active power filter, which is suitable for harmonic compensation of the electrified railway. Firstly, the paper analysed the basic principle of active filter, and then the topology of APF was determined by combining the characteristics of electrified railway load. Secondly, it studied the adaptive harmonic detection algorithm and established a model of the electric locomotive current source by MATLAB, and simulated the harmonic detection algorithm. Thirdly, the paper studied the control strategy, and used the DC side voltage control method. At last, the whole hybrid APF system was simulated, which proves that it has good harmonic compensation performance. Key words院 electrified railway; active power filter; adaptive harmonic detection; control strategy; the MATLAB simulation DOI:10.13880/j.cnki.65-1174

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