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.
作者
徐文斌
周宇飞
薛诚
Xu Wenbin;Zhou Yufei;Xue Cheng(Institute of Electrical and Automation,Anhui University,Hefei 230601,China)
出处
《电测与仪表》
北大核心
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)。
关键词
多模块
并联逆变器
等效
斜坡补偿
multi-module
parallel inverter
equivalent
slope compensation
