摘要
本文针对风电场并网对电力系统小干扰稳定性问题进行了研究。建立了风电场的模型,利用小干扰稳定理论,将系统线性化,根据状态矩阵的特征值,定性的分析了两区域互联系统并网前后阻尼特性的变化情况。搭建了两区域四机系统,将风电场并入,仿真结果表明:风电场并网后系统的动态特性变差并且风电场接在不同区域系统表现出的稳定性不同。
Small signal stability problem of wind power plants grid-connected is studied in this paper The system is linearized by establishing the model of wind power plants and using small signal stability theory. In addition, using the characteristic root of state matrix to analyze the two area interconnected systems qualitatively and obtain the damping characteristic is necessary. Then, the study builds and simulates the classic two-area four-machine systems. The results demonstrate that the dynamic characteristics will be worse after wind power plants connect to grid,besides the stability of different area system of wind farm is different
出处
《系统仿真技术》
2016年第2期83-87,共5页
System Simulation Technology
基金
上海市自然科学基金项目(15ZR1417300
15ZR1417200)
上海市教委创新基金项目(15ZZ106
14YZ157)
上海市闵行区科技项目(2014MH166)
国家自然科学基金(11304200)
关键词
风电场
动态特性
电力系统
小干扰稳定
wind power plants
dynamic characteristics
power grid
small signal stability
