摘要
随着风电并网规模的增大,其对电力系统电压稳定的作用日益突出。本文通过采用双馈式风力机组系统的双质块数学模型,在算例系统中研究了定风速下的系统电压失稳机理。本文重点分析讨论了当风速为12m/s时系统的电压稳定性,仿真结果表明在该风速下分析系统中存在着Hopf分岔、鞍结分岔等现象。这些分岔是电力系统电压失稳崩溃的动力学本质。
With large scale and high concentration of wind power integrated into the grid, the compact of wind power concerning the voltage stability is now increasingly prominent. In the thesis, two-mass shaft model was established and an- alyze the mechanism of the voltage instability in a model of a three-node power system. When the wind speed is 12m/s, the results show that Hopf,sad-dle-node was existed and they essentially induce the voltage instability even the voltage collapse of the studied system.
出处
《电气开关》
2016年第4期37-38,41,共3页
Electric Switchgear
关键词
电压稳定
双馈式风机
分岔理论
voltage stability
doubly fed induction generator wind turbine
bifurcation theory
