中国电机工程学报2024，Vol.44Issue(14)：5517-5527,中插6,12.DOI:10.13334/j.0258-8013.pcsee.230259
基于随机预测理论的双馈风电机组参与电网调频控制策略
Frequency Regulation Control Strategy of DFIG Participating in Power Grid Based on Stochastic Prediction Theory
摘要
Abstract
With the increasing penetration of wind power in power system,the random fluctuation of power and load brings great challenges to the frequency stability of power grid.To solve the above problems,this paper proposes a frequency regulation strategy based on chance constrained stochastic model predictive control.First,the frequency response model of wind power grid-connected system is established by considering the real-time random fluctuation of wind speed and load.Then,the desired objective function is established to minimize the system frequency variation and wind power fluctuation,and the chance constraint is incorporated into the stochastic optimization model.Finally,according to the distribution information of random disturbance or cantelli inequality,and combined with the state feedback control law to solve the stochastic optimization model,the optimal control law at the current moment is obtained.A detailed wind power grid-connected system model is built in MATLAB/Simulink for simulation verification.The results show that the proposed strategy can effectively suppress wind power fluctuations and system frequency changes,and improve the frequency stability of power grid.关键词
风电参与电网调频/随机波动/随机模型预测控制/机会约束Key words
wind power participates in grid frequency regulation/random fluctuation/stochastic model predictive control/chance constraint分类
信息技术与安全科学引用本文复制引用
聂永辉,吴永庆,蔡国伟,刘家僮,赵妍..基于随机预测理论的双馈风电机组参与电网调频控制策略[J].中国电机工程学报,2024,44(14):5517-5527,中插6,12.基金项目
国家自然科学基金项目(61973072) （61973072）
吉林省自然科学基金项目(20230101216JC). Project Support by National Natural Science Foundation of China(61973072) （20230101216JC）
Natural Science Foundation of Jilin Province(20230101216JC). （20230101216JC）
