孤岛运行下微电网并联逆变器下垂控制策略研究  

Research on Droop Control Strategy of Microgrid Parallel Inverter Under Island Operation

作　　者：龙夏 邓秋玲[1] 向全所 柯梦卿 张群[1] LONG Xia;DENG Qiu-ling;XIANG Quan-suo;KE Meng-qing;ZHANG Qun(Hunan Provincial Key Laboratory of Wind Generator and Its Control, College of Electrical and Information Engineering, Hunan Institute of Engineering, Xiangtan 411104, China)

机构地区：[1]湖南工程学院电气与信息工程学院风力发电机组及控制湖南省重点实验室,湘潭411104

出　　处：《湖南工程学院学报（自然科学版）》2020年第1期14-19,共6页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南省自然科学基金省市联合资助项目(2018JJ4041).

摘　　要：随着全球能源互联网的发展,微电网也得到了迅速的发展.微电网系统的稳定性和可靠性将直接受到逆变器运行特性的影响.结合微电网的电压、频率、有功功率和无功功率,分析了逆变器下垂控制的运行特性,实现了孤岛模式下微电网并联逆变器的下垂控制策略的优化.通过数学建模并搭建MATLAB/Simulink仿真模型,详细分析了孤岛模式下微电网负载变化时电压和频率的动态特性.仿真结果验证了微电网并联逆变器下垂控制策略优化的正确性和有效性.With the development of the global energy Internet,the microgrid has also developed rapidly.The stability and reliability of the microgrid system will be directly affected by the operating characteristics of the inverter.Combined with the voltage,frequency,active power and reactive power of the microgrid,the operating characteristics of the inverter droop control are analyzed.Then the optimization of the droop control strategy of the microgrid parallel inverter in island mode is realized.Through the mathematical modeling and construction of MATLAB/Simulink simulation model,the dynamic characteristics of voltage and frequency in the microgrid load change in island mode are analyzed in detail.The simulation results show the correctness and effectiveness of the droop control strategy optimization of the parallel inverter of the microgrid.

关 键 词：微电网 并联逆变器 下垂控制 电压、频率动态特性 MATLAB/SIMULINK仿真 

分 类 号：TM464[电气工程—电器]