变电站谐波抑制和无功综合补偿技术的研究  

Research on Harmonic Suppression and Reactive Power ComprehensiveCompensation Technology in Substation

作　　者：李乾坤 刘毅力[1] LI Qiankun;LIU Yili(School of Electronic Information,Xi′an Polytechnic University,Xi′an 710048,China)

机构地区：[1]西安工程大学电子信息学院,陕西西安710048

出　　处：《电工技术》2023年第8期165-168,共4页Electric Engineering

基　　金：国家自然科学基金项目(编号61871318)。

摘　　要：为了解决变电站非线性负荷产生的谐波及无功功率损耗的问题,采用一种综合补偿方法,将混合型有源电力滤波器(Hybrid Active Power Filter, HAPF)与晶闸管控制电抗器(Thyristor Controlled Reactor, TCR)相结合构成综合补偿,融合两者的优点,平衡负载,抑制各次谐波,补偿无功功率,也在一定程度上弥补了HAPF与TCR装置各自解决问题的单一性。在HAPF与TCR各部分的模块中,对有源滤波器(Active Power Filter, APF)的谐波检测、TCR触发角进行了设计与分析,并根据综合补偿的结构,在MATLAB中搭建了相应的模型,最后通过仿真和对实际数据的结果分析,指明该综合补偿方案对变电站母线谐波电压畸变率及流入电网的谐波电流水平有较大的改善。In order to solve the loss of harmonics and reactive power generated by nonlinear loads in substations,a comprehensive compensation method is used to combine a hybrid active power filter(HAPF)with a thyristor controlled reactor(TCR)to form a comprehensive compensation.This method combines the advantages of the two,balances the load,suppresses each harmonic,compensates the reactive power,and also compensates for the singleness of the HAPF and TCR devices to solve their problems to a certain extent.In the modules of each part of HAPF and TCR,the harmonic detection and TCR trigger angle of the Active Power Filter(APF)are designed and analyzed,and the corresponding model is built in MATLAB according to the structure of comprehensive compensation.Finally,through simulation and analysis of actual data,it is pointed out that the comprehensive compensation scheme has a great improvement on the harmonic voltage distortion rate of the substation bus and the harmonic current level flowing into the power grid.

关 键 词：TCR HAPF 无功补偿 综合补偿 MATLAB 

分 类 号：TM74[电气工程—电力系统及自动化]