摘要
风机出力会随风速改变而变化,对含大量风电接入的电网而言,风力出力的变动会影响电网频率。研究利用分数阶PID频率控制器来抑制风机出力变动引起的电网频率不稳定。运用Matlab/Simulink搭建了含风电接入的电网模型,并设计了分数阶控制器。通过仿真分析证明,分数阶PID控制器比传统控制器具有更优的控制性能。
Wind speed can change the output of wind power plants. For the grid with large scale of wind power integration, the output change of wind power plants would result in frequency variation. In order to keep the stability of frequency,a fractional PID frequency controller is proposed. The paper has construc- ted a single-area power system with the wind speed fluctuation was contained based on Matlab / Simulink ,and the fractional controller is designed. Simulation results show that, the improved PID controller has better control performance than traditional frequency controller .
作者
王志兰
赵兴勇
WANG Zhi-lan ZHAO Xing-yong(Department of Electric Power Engineering , Shanxi University, Tai yuan 030013,China)
出处
《电力学报》
2017年第4期265-268,304,共5页
Journal of Electric Power
基金
电力系统运行与控制山西省重点实验室开放基金(2017021032)
关键词
频率控制
风电接入
分数阶
非线性因素
frequency control
integration of wind power
fractional order
nonlinear factors