基于磁通补偿的无源滤波器的设计  

Design of passive filter based on fundamental magnetic flux compensation

作　　者：张伟[1] 韩素敏[1] 

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《河南理工大学学报（自然科学版）》2011年第6期695-699,共5页Journal of Henan Polytechnic University（Natural Science）

基　　金：河南省重点科技攻关项目(0623021700);河南省教育厅自然科学基础研究计划项目(2011A470004);河南理工大学青年基金资助项目(Q2011-49)

摘　　要：为了改善传统无源滤波器的性能,设计了由变压器、无源滤波器和谐振电路组成的一种新型无源滤波电路.其组成原理为变压器一次侧串联在电源和谐波源之间,而二次侧通过基波谐振回路连于电网,利用基波磁通补偿原理,使基波呈低阻,对谐波呈高阻,从而对谐波产生抑制作用;无源滤波器主要作用是进一步改善滤波效果.仿真实验研究表明,所设计的滤波器具有较好的滤波特性,有效地抑制了电网侧的谐波.In order to improve the performance of traditional passive filter,a new passive filter is designed according to the principle of the fundamental magnetic flux compensation,which is mainly composed by the transformers,passive filters and a passive resonant circuit.The basic principle is that the transformer primary side is in series between the power supply and harmonious wave source,and then the secondary side is connected with the power network through the fundamental resonant circuit.That can make fundamental a low resistance and high resistance to harmonics,and so harmonics are suppressed.In order to further improve the filtering effect a universal passive filter is added.The simulation results show that the designed filter has good filtering properties and can effectively inhibit the harmonics of the grid side.

关 键 词：基波磁通补偿 单调谐回路 无源滤波器 

分 类 号：TN713[电子电信—电路与系统]