新型无变压器型并联混合有源滤波器  

New Transformerless-Shunt Hybrid Active Power Filters

作　　者：杜少通[1] 伍小杰[1] 魏琛[1] 周娟[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,徐州221116

出　　处：《电工技术学报》2013年第12期1-7,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51077124);江苏省"青蓝工程"资助项目

摘　　要：针对煤矿井下1 140V配电网谐波问题,采用一种新型无耦合变压器型并联混合有源电力滤波器(NTLS-SHAPF),NTLS-SHAPF由有源滤波部分和LC滤波器构成,在降低有源部分基波电压的同时减小有源部分电流。基于NTLS-SHAPF拓扑结构和控制方法,建立系统数学模型,分析其滤波特性;依据分压系数的计算,分析有源部分基波电压和电流特性。推导无源部分LC参数与系统各电量之间的表达式,在分析LC参数对系统各电量影响的基础上,以降低有源部分基波电压、减小有源部分谐波电流和LC滤波器电感谐波电流为目的,提出无源部分的设计原则。最后仿真分析与理论分析一致,实验结果表明了对NTLS-SHAPF理论分析及其无源部分LC参数设计原则的有效性。To solve the harmonic issue in 1 140V distribution network on mine, a new transformerless-shunt hybrid active power filter which is composed of active filter and LC filter is used to reduce the fundamental partial voltage and current of active filter. Based on the topology and control method, this paper presents the system mathematical model, and analyzes filtering characteristic of the hybrid active power filter. According to calculating the gain of partial voltage, the characteristics of fundamental voltage and current of active filter are analyzed. In order to decrease fundamental voltage and harmonic current of active filter, to reduce harmonic current of the inductor within LC filter, the equations between LC filter parameters and each electric variable in system are derived, and the influence of LC filter parameters on each electric variables in system is analyzed. Then the design principle of LC filter is proposed. The simulation shows that theoretical analysis is correct, and experimental results prove that the theoretical analysis of the using transformerless-shunt hybrid active filter and the design principle of LC filter parameters are effective.

关 键 词：谐波补偿 无耦合变压器型 并联混合型 有源滤波器 

分 类 号：TM46[电气工程—电器] TM76