三绕组谐波屏蔽变压器的研究  

Study of harmonic suppression scheme based on three-winding transformer

作　　者：谢鹏[1] 王善铭[1] 王祥珩[1] 李隆年[1] 杨青 

机构地区：[1]清华大学电机系,北京100084 [2]驻上海711所军事代表室,上海200011

出　　处：《电工电能新技术》2005年第2期41-43,80,共4页Advanced Technology of Electrical Engineering and Energy

基　　金：教育部科学技术研究重点项目(104120);湖南省教育厅科学研究项目(03C003)

摘　　要：针对独立电力系统中抑制谐波的实际需要,本文对采用三绕组变压器进行谐波抑制的方案进行了研究。该方案的特点是,在中压绕组上连接各次谐波滤波器。根据三绕组变压器的结构特点,通过合理设计中压绕组的结构,可以使中压绕组的等值阻抗接近于零。同时合理配置中压绕组外接各谐波滤波器的参数,使其对某些特定次数谐波阻抗为最小,从而抑制这些谐波分量。本文阐述了这种方案的工作原理,并进行了仿真分析,最后通过实验验证了这种方案是有效可行的。To suppress the harmonics in isolated power system, a new scheme using a three-winding transformer, the medium voltage winding of which is connected with a set of harmonic filters, is studied in this paper. The harmonics on the load side can be effectively suppressed if the parameters of the transformer and the harmonic filters are properly set. In this paper, the principle of the scheme is presented and its operation is simulated. The validity of the scheme is verified by experiments.

关 键 词：谐波 变压琴 抑制 屏蔽 

分 类 号：TM41[电气工程—电器]