An adaptive control strategy for microgrid secondary frequency based on parameter identification

作     者：Yong Shi Yin Cheng Bao Xie Jianhui Su Yong Shi;Yin Cheng;Bao Xie;Jianhui Su

作者机构：Photovoltaic System Engineering Research Center of the Ministry of EducationHefei University of TechnologyHefei 230009P.R.China State Grid Wuhu Power Supply CompanyWuhu 241000P.R.China 

出 版 物：《Global Energy Interconnection》 (全球能源互联网（英文版）)

年 卷 期：2023年第6卷第5期

页      面：592-600页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 0835[工学-软件工程] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：This work was supported by“the Fundamental Research Funds for the Central Universities”(Grant No.PA2022GDGP0032) National Natural Science Foundation of China(51907045) 

主　　题：Adaptive control Genetic algorithm Microgrid Online identification 

摘      要：Complex microgrid structures and time-varying conditions, among other factors, cause problems in the mechanical modeling of microgrids, making model-based controller optimization difficult. Therefore, this study proposed a secondary frequency adaptive control strategy based on parameter identification, which uses an online parameter identification method to identify the parameters in the microgrid in real-time. The identified parameters are then used in the secondary frequency adaptive controller to optimize the real-time controller performance. The proposed method realizes adaptive optimization of the controller in the microgrid operation state and is applied to a microgrid with unknown parameters to adjust the controller parameters. Finally, a simulation experiment was conducted to verify the model accuracy and the frequency regulation effect of the proposed adaptive control strategy.