微电网并网对电网的影响  

Impact of the Integration of Micro-grid to Grid

作　　者：陈丽娟[1] 王致杰[1] 苏新霞 裴泽阳 

机构地区：[1]上海电机学院,上海200240

出　　处：《电力学报》2014年第5期367-370,409,共5页Journal of Electric Power

基　　金：国家自然科学基金(11201267);上海市自然科学基金(12ZR1411600);上海市教育委员会科研创新重点项目(12ZZ197)~~

摘　　要：微电网中分布式电源并入大电网时会改变电网的稳态潮流分布和能量流动的单向性,从而影响电网的稳定性。建立了微电网并网的简化模型,并从微电网结构、微电网渗透率、电网运行安全型以及经济性等方面进行分析,阐述了微电网并网对电网潮流分布、静态电压、网络损耗、暂态稳定性以及继电保护的影响,对微电网并网的最佳能量分布和提高电网的稳定性和安全性提供了一定的理论依据。最后结合智能电网的发展,对微电网中分布式电源并网的发展前景进行展望。The load distribution and the direction of energy flow would be changed when distributed generation in the mi- cro-grid was connected to grid, which affects the stability of grid. This paper established the simplified model of the integra- tion of Micro-grid, and analyzed the effect on load distribution, static voltage, network loss, transient stability and relay protec- tion from the aspect of the structure of micro-grid, the perme- ability of micro-grid, the security and economy of grid. It pro- vides some theoretical basis of the optimum Energy distribution and the advance of security and economy of grid. And at last, combined with smart grid, this paper discussed the development prospect of the integration of Micro-grid.

关 键 词：微电网 渗透率 分布式电源 潮流分布 电网稳定性 

分 类 号：TM73[电气工程—电力系统及自动化]