高频混合型有源电力滤波器的研究  

Study on high-frequency hybrid active power filter

作　　者：周贺[1] 王玲玲[1] 陈辉明[1] 王正仕[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2015年第4期549-552,共4页Journal of Mechanical & Electrical Engineering

基　　金：国家高技术研究发展计划("863"计划)资助项目(2012AA053601)

摘　　要：针对无源电力滤波器滤波效果差、易与其他无源设备或电网发生谐振等问题,提出了一种可采用功率MOSFET的高频混合型有源电力滤波解决方案。在现有的无源滤波系统基础上,另加入一条单调谐并联混合型有源电力滤波器支路,使其有针对性的滤除11次基波频率及以上的高频谐波电流分量。根据滤波系统的基本工作原理,推导出电网和混合支路的谐波电流增益,详细分析了有源滤波器的谐波电流增益对谐波分流和抑制效果的影响,并对控制系统进行了分析设计。对所提出的方案进行了仿真研究,并进行了样机实验。研究结果表明,该方案可以明显改善整个系统的滤波效果,滤波频带宽、谐振抑制效果好,并且系统有源部分容量小。Aiming at the poor and vulnerable performance of passive power filter,a MOSFET available high-frequency hybrid active power filtering scheme was proposed. Based on the existing passive power filter,a single-tuned hybrid active power filter was added to filter the high-frequency current harmonics pertinently. According to the basic principle of filtering system,the harmonic current gain and system double loop controller were analyzed and designed. Simulation investigation was done and a prototype was built. The results indicate that the system filtering performance is significantly improved,filtering bandwidth is widened,resonance is inhibited and the capacity of the active power filter in the proposed system is very low.

关 键 词：无源滤波器 高频 有源电力滤波器 混合滤波 有源增益 

分 类 号：TM464[电气工程—电器]