多电平大容量基波磁通补偿滤波器  

Multi-level Large-capacity Fundamental Magnetic Flux Compensation Filter

作　　者：郑征[1] 张朋[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：《电力电子技术》2015年第11期53-56,共4页Power Electronics

基　　金：国家自然科学基金(61340015);河南省科技攻关项目(142102210048)~~

摘　　要：将级联桥多电平逆变器拓扑结构应用于大容量基波磁通补偿(FMFC)有源电力滤波器(APF),分析了级联H桥拓扑及其工作机制,应用载波移相脉宽调制(CPS-SPWM)技术,通过调节变换器电压的幅值间接达到快速跟踪基波电流,实现基波补偿条件。仿真结果表明,与两电平拓扑结构滤波装置相比,该方法电流跟踪精度高,输出谐波含量少,使得串联变压器能够更好地对谐波呈现高阻抗;最后,搭建RT-Lab半实物实验平台,实验结果证明了将多电平级联H桥拓扑结构应用于大容量FMFC-APF的可行性。The bridge cascade multi-level inverter topology is used in large-capacity fundamental magnetic flux com- pensation （FMFC） active power filter（APF）, the working mechanism of cascaded H-bridge topology is analyzed, the carrier phase shift pulse width modulation （CPS-SPWM） technology is used, by adjusting the amplitude of the convert- er voltage to achieve fast track the fundamental current indirectly, the conditions of FMFC is realized.Simulation re- sults show that, compared with the two-level topology filtering device this method has the advantages of high preci- sion current tracking and low output harmonics, making the series transformer easily reach a high impedance to har- monics.Finally, RT-Lab semi-physical experimental platform is build,the experimental results demonstrate the feasibility of the multi-level cascade H-bridge topology used in FMFC-APF.

关 键 词：滤波器 多电平 基波磁通补偿 载波移相 

分 类 号：TN713[电子电信—电路与系统]