中国电力2025，Vol.58Issue(9)：164-174,11.DOI:10.11930/j.issn.1004-9649.202502011
计及储能随机接入退出行为的互联电网自适应负荷频率控制策略
Adaptive Load Frequency Control Strategy for Interconnected Power Systems Considering Stochastic Access/Exit Behaviors of Energy Storage Systems
摘要
Abstract
Utilizing energy storage systems(ESSs)to participate in load frequency control(LFC)can effectively improve the frequency stability of power systems.However,due to such factors as state of charge or sudden physical failures,the random access or exit of ESSs may cause uncertain changes in LFC structure,which is not conducive to the controller design.In this paper,an asynchronous switched adaptive LFC strategy is proposed.Firstly,a series of possible scenarios for ESSs to participate in LFC were pre-set.For each scenario,the control parameter design constraints were determined by constructing Lyapunov functionals.Secondly,to address the uncertainties of LFC structure caused by random access/exit of ESSs,update criteria for control parameters switching between any two scenarios were derived based on the average dwell time technique.Finally,to minimize the average dwell time between any two operating scenarios,an LFC parameter optimization method based on harmony search was designed to effectively improve the tolerance of the power system for stochastic energy storage access/exit behaviors.Simulation results show that compared with existing control schemes that do not consider the factors of access/exit of ESSs,the proposed method can effectively reduce the impact of ESSs'access/exit on the dynamic behaviors of LFC system.关键词
互联电网/负荷频率控制/异步切换/储能系统/自适应控制Key words
interconnected power system/load frequency control/asynchronous switch/energy storage system/adaptive control引用本文复制引用
满林坤,吴珂鸣,迟成,尤金石,赵梓潼,张亚健..计及储能随机接入退出行为的互联电网自适应负荷频率控制策略[J].中国电力,2025,58(9):164-174,11.基金项目
国家电网有限公司科技项目(东北电网新型储能参与电力市场机制与运行效果评估推演的关键技术研究,529926240003). This work is supported by Science and Technology Project of SGCC(Research on Key Technologies for the Evaluation and Simulation of the Participation Mechanism and Operation Effect of New Energy Storage in Northeast Power Grid,No.529926240003). （东北电网新型储能参与电力市场机制与运行效果评估推演的关键技术研究,529926240003）
