含可再生能源的多区域电力系统负荷频率控制  

Load Frequency Control of Multi-area Power System with Renewable Energy Sources

作　　者：关燕鹏 李晓宁 贾新春[1] GUAN Yanpeng;LI Xiaoning;JIA Xinchun(School of Automation and Software Engineering,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学自动化与软件学院,太原030006

出　　处：《电力系统及其自动化学报》2022年第7期64-71,共8页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(61973201);山西省应用基础研究基金资助项目(202103021224030)。

摘　　要：针对可再生能源接入后多区域电力系统惯量减小、调频困难的问题,提出一种基于虚拟惯量技术的分布式最优负荷频率控制方法。首先,对具有控制器稀疏互联结构约束的分布式最优负荷频率控制系统建立了数学模型;然后,利用Lyapunov-Krasovskii方法得出该模型的稳定性判据,利用线性矩阵不等式技术和混合整数规划法得出稀疏结构控制器的设计方法;最后,以1个4区电力系统为例进行仿真,结果表明利用所提方法可实现系统的稳定控制。To deal with the problem of inertia reduction and difficulty in frequency regulation in a multi-area power sys⁃tem with the access of renewable energy sources,a distributed optimal load frequency control method based on the virtu⁃al inertia technique is proposed.First,a mathematical model for a distributed optimal load frequency control system with controller sparse interconnection structure constraints is established.Second,the stability criterion for this model is obtained via the Lyapunov-Krasovskii theory,and a design method for the sparse structure controller is formulated us⁃ing linear matrix inequality techniques and mixed integer programming.Finally,a 4-area power system is taken as an example for simulation,and results show that the stability control of the system can be achieved using the proposed method.

关 键 词：多区域电力系统 负荷频率控制 虚拟惯量 分布式优化 稀疏结构 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]