单相BES-quasi-ZSI二倍频脉动的解析建模  

Analytic modeling of double-line frequency ripple in single-phase BES-quasi-ZSI

作　　者：魏祥林 王晗[4] 陈伟[2,3] 杨维满[2,3] 黄苏融 WEI Xianglin;WANG Han;CHEN Wei;YANG Weiman;HUANG Surong(School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200444,China;College of Electrical and Information Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Gansu Renewable Energy Power Conversion and Control Engineering Technology Research Center,Lanzhou 730050,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海大学机电工程与自动化学院,上海200444 [2]兰州理工大学电气工程与信息工程学院,甘肃兰州730050 [3]甘肃省新能源电力变换与控制工程研究中心,甘肃兰州730050 [4]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《中南大学学报（自然科学版）》2021年第5期1502-1515,共14页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51867016)。

摘　　要：研究单相Ⅱ型电池储能型准Z源逆变器(battery-energy stored quasi-Z-source inverter,BES-qZSI)的二倍频脉动产生和传播的物理机理,运用状态空间平均法求解其二倍频脉动量的精确解析表达式;在分析其二倍频脉动量对qZS网络阻抗参数敏感性的基础上,提出一种基于主导阻抗参数抑制二倍频脉动的qZS网络不对称阻抗参数的设计方法,建立基于Matlab/Simulink的BES-qZSI-Ⅱ电路仿真模型,并将仿真结果与计算结果进行比较。研究结果表明:本文所建解析模型正确。The generating and propagating mechanism of the double-line frequency(2ω)ripple of the batteryenergy stored quasi-Z-source inverter(BES-qZSI-Ⅱ)was studied.The analytical model of the 2ωripple was established by applying the state space averaging method.Based on analyzing the sensitivity of impedance parameters on the 2ωripple,a design procedure for the asymmetric impedance parameters of single-phase BESqZS-Ⅱ inverter was proposed,which was based on the idea that the 2ωripple is mainly suppressed by the dominant impedance parameter accordingly.A circuit simulation model was established based on Matlab/Simulink,and the simulation results were compared with those of calculation.The results show that the proposed analytical model to calculate the 2ωripple in single-phase BES-qZSI-Ⅱ inverter is correct.

关 键 词：准Z源逆变器 电池储能 二倍频脉动 解析模型 不对称阻抗参数 

分 类 号：TM464[电气工程—电器]