多模块并联逆变器的等效变换和稳定性分析  

Equivalent transformation and stability analysis of multi-module parallel inverters

作　　者：徐文斌 周宇飞[1] 薛诚 Xu Wenbin;Zhou Yufei;Xue Cheng(Institute of Electrical and Automation,Anhui University,Hefei 230601,China)

机构地区：[1]安徽大学电气与自动化学院,合肥230601

出　　处：《电测与仪表》2021年第1期91-95,共5页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(61071023);安徽省自然科学基金资助项目(1708085MF155);安徽省教育厅自然科学研究重点项目(KJ2015A416)。

摘　　要：研究峰值电流模式多模块逆变器并联系统的非线性行为,分析系统在同步控制下的拓扑模块,通过理论分析和仿真对比,将并联系统等效为单模块H桥逆变器输出情况。此系统是属于时变参数系统,研究中发现其很容易产生时域上的快标不稳定现象,而斜坡补偿是一种简单而有效的方法。这里从等效的单模块H桥逆变器非线性理论出发,分析计算出多模块H桥逆变器并联系统的斜坡补偿信号幅度的理论要求,并进行了仿真验证和数值分析。To study the nonlinear behavior of multi-module inverter parallel system under peak current mode,the topology module under synchronous control is analyzed in this paper.The parallel system is equivalent to the single-module H-bridge inverter through theoretical analysis and simulation comparison.This system is a time-varying parameter system and we found in the research that it is easy to produce fast-scale instability in time domain,and slope compensation is a simple and effective method.Based on the nonlinear theory of equivalent single-module H-bridge inverter,the theoretical requirements of slope compensation signal amplitude of multi-module H-bridge inverter parallel system are analyzed and calculated,and the simulation verification and numerical analysis are carried out.

关 键 词：多模块 并联逆变器 等效 斜坡补偿 

分 类 号：TM464[电气工程—电器]