高速铁路电能质量有源无源混合补偿方法  

Power Quality Compensation for High Speed Railway Based on Passive and Active Method

作　　者：乔光尧[1] 丁宁[1] 于坤山[1] 

机构地区：[1]中国电力科学研究院,北京100192

出　　处：《电网与清洁能源》2012年第7期19-24,30,共7页Power System and Clean Energy

基　　金：国家电网公司资助科技项目(DL71-09-018)~~

摘　　要：针对高速铁路给电网带来的高次谐波和负序等电能质量问题,提出一种采用有源和无源相结合的混合补偿方案。其中有源补偿装置采用单相背靠背变流器结构,安装在牵引变电所牵引侧,主要补偿负序和11次以下的低次谐波;无源补偿采用高通滤波器,安装在分区所,主要滤除13次及以上的高次谐波。对有源补偿装置的主电路结构和控制策略、高通滤波器参数设计方法进行了理论分析,用PSCAD/EMTDC软件对所提出的方案进行了仿真研究。仿真结果表明,所提出的有源补偿装置控制策略和无源高通滤波器参数设计是有效的,实现了高速铁路负序和谐波的综合补偿。For some power quality problems such as high order harmonics and negative current in the power grid caused by high-speed railway,this paper proposes a hybrid compensation method which combines the active and reactive compensations.The active device is installed at the traction side of the substation,which is composed by single phase back-to-back converters,mainly compensating negative and low order harmonic current,while the reactive device is installed at the section post,mainly filtering high order harmonics of 13th and above order.In addition to the theoretical analysis of the main circuit structure,control strategy and the design method of the parameters of the high-pass filter,the proposed scheme is simulated through EMTDC/PSCAD.The result of the simulation suggests that the proposed structure and control methods are effective in realizing the negative sequence and harmonics compensation.

关 键 词：高速铁路 谐波 有源补偿 高通滤波器 

分 类 号：TM761.1[电气工程—电力系统及自动化]