基于有差调节的群体式低压直流微电网的稳定性分析  

Stability Analysis of Group-type LVDC Microgrid Based on Difference Regulation

作　　者：陶冶[1] 张明[1] Tao Ye;Zhang Ming(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电气自动化》2018年第2期55-57,107,共4页Electrical Automation

摘　　要：近年来,通过户用太阳能系统的互连而形成的群体式低压直流微电网,在一些发展中国家的偏远地区的电气化方面展示出了巨大的潜力。由于技术快速发展,群体式低压直流微电网的稳定性必须加以考虑。基于李雅普诺夫稳定性理论,提出了以非线性普通微分方程系统建模的基于有差调节的群体式低压直流微电网的稳定性的分析方法。并以五角星结构的微电网作为研究案例,分析了不同参数对微电网稳定性的影响,并将微电网的稳定运行区间可视化,对群体式低压直流微电网的规划和设计具有一定作用。In recent years,group-type LVDC microgrids formed through the interconnection of household solar energy systems have shown great potential in the electrification of remote areas in some developing countries.Due to the rapid development of this technology,the stability of group-type LVDC microgrids must be considered.Based on the Lyapunov stability theory,a method of analyzing the stability of group-type LVDC microgrid based on the difference regulation was proposed according to the modeling of nonlinear ordinary differential equation system.By taking the microgrid with pentagram structure as a case study,the influence of different parameters on the stability of the microgrid was analyzed,and the stable operating range of the microgrid was visualized.It has a certain effect on the planning and designing of group-type LVDC microgrids.

关 键 词：太阳能 群体式 微电网 有差调节 稳定性 

分 类 号：TM926[电气工程—电力电子与电力传动]