逆变器并联系统阻抗分析  

Analysis of output impedance of parallel inverters

作　　者：朱子梁[1] 亓迎川[2] 王杰[3] 孙中华[4] 

机构地区：[1]空军雷达学院电力工程教研室,湖北武汉430019 [2]武汉理工大学自动化学院,湖北武汉430019 [3]海军士官学校发供电教研室,安徽蚌埠233012 [4]空军雷达学院研究生管理大队,湖北武汉430019

出　　处：《电源技术》2010年第7期683-686,共4页Chinese Journal of Power Sources

摘　　要：逆变器并联系统的环流抑制是实现并联需解决的关键问题,增大逆变器输出阻抗可有效抑制环流,但会严重影响逆变器的抗扰动特性。针对这一矛盾,提出了在传统双闭环控制结构基础上加入平均负载电流前馈的控制方法,通过详细的理论分析,得出该方案有效地增大了并联逆变器间的阻抗,增强了系统的环流抑制能力和抗扰动能力。并通过仿真进行了验证,证明该方案对环流抑制效果明显且简单易行,对增强并联系统稳定性具有实用意义。The circumfluence control is the key to achieve the inverter parallel operation.Increasing the output impedance of inverter can effectively control the circumfluence,but it will seriously influence dynamic characteristic of inverter.The average-load-current front-feed based on dual-loop controlled inverters was brought out in this paper.The detailed theoretical analysis proved that the curcumfluence impedance could be enlarged,and the circumfluence control and dynamic characteristic could be enforced.The simulation results show that this project can effectively control the circumfluence and enforce the stability of parallel inverter system.

关 键 词：逆变器 并联 环流阻抗 环流 

分 类 号：TM464[电气工程—电器]