数据驱动的负荷频率系统自整定控制器设计  

Design of Data-driven Self-tuning Controller for Load Frequency System

作　　者：陈宗遥 卜旭辉[1] 崔立志[1] 余威 郭金丽 CHEN Zong-yao;BU Xu-hui;CUI Li-zhi;YU Wei;GUO Jin-li(School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《控制工程》2023年第2期238-244,共7页Control Engineering of China

基　　金：国家自然科学基金资助项目(61573130,U1804147);河南省高校科技创新团队项目(20IRTSTHN019);河南理工大学创新型科技团队项目(T2019-2,T2017-1)。

摘　　要：在互联电力系统负荷频率控制系统中,存在建模不精确和工况大规模变化等一系列不确定性问题,使得固定参数的PI控制器难以取得预期的频率控制效果。针对以上问题设计了一种数据驱动参数自整定控制器,基于迭代反馈整定算法使PI控制器的控制性能达到最优状态,可维持电力系统的频率稳定。首先,基于I/O数据提出负荷频率控制系统的性能函数;然后,在闭环系统上进行两次实验并采集I/O数据;最后,通过迭代参数更新算法进行PI参数迭代寻优的过程。三区域互联系统仿真结果表明提出的数据驱动的PI参数自整定控制器具有良好的跟踪性能。In the load frequency control system of interconnected power system, there are a series of uncertainty problems, such as modeling inaccurately and large-scale changes of working conditions, which make it difficult for the PI controller with constant parameters to achieve expected frequency control effect. A data-driven parameter self-tuning controller is designed to deal with the aforesaid problems. Based on the iterative feedback tuning algorithm, the PI controller can achieve the optimal control performance and maintain the frequency stability of the power system. Firstly, the performance function of load frequency control system is proposed based on I/O data. Secondly, two experiments are carried out on the closed-loop system and I/O data are collected. Finally, the iterative optimization process of PI parameters is carried out through the iterative parameter updating algorithm. The simulation results of three-area interconnection system indicate that the proposed data-driven PI parameter self-tuning controller has good tracking performance.

关 键 词：多区域电力系统 迭代反馈整定 负荷频率控制 数据驱动控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]