统一电能质量控制器串联逆变器改进的研究  

Research on improvement of unitary inverter of unified power quality controller

作　　者：王保兴 郭兴众[1] 葛愿[1] WANG Bao-xing;GUO Xing-zhong;GE Yuan(College of Electrical Engineering,Anhui Polytechnic University,Anhui Wuhu 241000,China)

机构地区：[1]安徽工程大学安徽省先进控制理论与网络控制研究室,安徽芜湖241000

出　　处：《齐齐哈尔大学学报（自然科学版）》2019年第3期18-22,共5页Journal of Qiqihar University(Natural Science Edition)

基　　金：安徽省科技计划项目(160b0602025);安徽省高校学科(专业)拔尖人才项目(gxbjZD20)

摘　　要：在统一电能质量控制器(UPQC)串并联研究的基础上,根据理论和创新模型做出实物的基础上得到启发,在UPQC和MMC理论的基础上,结合它们各自的优缺点构造出新的拓扑结构。新的拓扑结构通过数学模型的建立,利用理论推导证明新拓扑结构理论上的可行性。并在MATLAB/Simulink下进行仿真试验验证,试验数据结果证明其理论的正确性。新拓扑结构MMC-UPQC中的串联部分是由两个并联的串联逆变器组成,并联逆变器与负载相连。因为无源滤波性特有的谐振特性,并联与负载之间连接无源滤波器,利用其谐振特性来提高系统的可靠性。仿真结果显示的波形图表明新MMC-UPQC对电压暂降有很好的补偿能力,并提高公共直流侧Udc的电压,提高系统的安全性。Based on the research of serial power parallel control of unified power quality controller(UPQC),this paper is inspired by the theory and innovation model based on physical objects,Based on theory and innovation on the basis of thinking about UPQC and MMC theory,construct a new topology based on theory and innovation combined with their respective advantages and disadvantages.The new topology is proved by the establishment of mathematical models,using theoretical derivation to prove the feasibilit of the new topology theory.The simulation test is carried out under MATLAB/Simulink,and the experimental data proves the correctness of the theory.The series connection in the new topology MMC-UPQC consists of two parallel series inverters connected to the load.Because of the unique resonant characteristics of passive filter,a passive filter is connected between the parallel and the load,and its resonant characteristics are used to improve the reliability of the system.The waveform diagram shown in the simulation results shows that the new MMC-UPQC has a good compensation ability for voltage sag,and improves the voltage of Udc on the common DC side,which improves the safety of the system.

关 键 词：模块化多电平逆变器 无源滤波器 数学模型 系统安全性 

分 类 号：TM464[电气工程—电器]