100%新能源场景下考虑频率稳定约束的源网荷储一体化系统储能优化配置  

The Optimal Configuration of Energy Storage in the Source-Grid-Load-Storage Integrated System Considering Frequency Stability Constraints in 100%New Energy Scenarios

作　　者：赵冬梅[1] 宋晨铭 冯向阳 虞程超 徐辰宇 Zhao Dongmei;Song Chenming;Feng Xiangyang;Yu Chengchao;Xu Chenyu(School of Electrical and Electronic Engineering,North China Electric Power University,Beijing,102206,China)

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《电工技术学报》2025年第7期2146-2161,共16页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划资助项目(2022YFB2402700)。

摘　　要：新能源富集和负荷集中地区建设源网荷储一体化系统是推动新能源大规模就地消纳的有效方式。然而,100%新能源场景下,一体化系统缺乏同步惯量支撑,频率稳定面临极大挑战。为深度挖掘“源-网-荷-储”各环节调频潜力,首先对跟网型和构网型新能源场站,以及需求侧响应的频率支撑能力进行研究,并根据系统实际运行状态和预想故障场景设置合理的虚拟惯性时间常数,建立一体化系统频率响应模型;其次,在100%新能源场景下的储能配置模型中,提出考虑各调频资源协同运行的储能优化配置方法,并利用时域仿真将频率安全稳定约束嵌入配置模型;最后,基于西南某地区待建设的源网荷储一体化试点工程进行算例验证,结果表明,该文提出的配置方法能够有效提升一体化系统频率稳定性。It is an effective means to promote large-scale local consumption of new energy to construct an integrated source-grid-load-storage system in areas with abundant new energy and concentrated loads.However,the frequency stability problem is becoming increasingly prominent due to the lack of conventional power supply inertia support in the 100%new energy scenario.To address these issues,the potential of frequency modulation resources on the source,energy storage and load sides is fully explored in this paper,establishing an integrated system energy storage optimization configuration model considering frequency stability and the coordinated operation of various frequency modulation resources,realizing the coordinated operation of flexible adjustment resources and ensuring the frequency stability of the system.Firstly,the virtual inertia time constant is reasonably set according to the actual operating state of the system and the expected fault scenario,which is based on the safety constraint of rate of change of frequency.Secondly,the influence of the control strategy and demand-side response on the frequency response of grid forming(GFM)and grid following(GFL)were explored,which improves the frequency regulation ability of new energy stations in all aspects.Finally,a frequency response model considering the dynamic frequency response constraints and the operation characteristics of frequency modulation resources in each link of the integrated system is established,so as to effectively avoid the frequency out-of-limit problem.Simulation analysis of the proposed optimal configuration model for energy storage has a positive effect on improving the inertia level of the system and ensuring the frequency stability of the system.The frequency safety of the power system can be improved while improving economic benefits considering the frequency characteristics of new energy units,energy storage power stations and demand-side response under the framework of energy storage allocation optimization.The rotor kinetic energy stor

关 键 词：源网荷储一体化系统 跟网型 构网型 频率稳定 储能优化配置 

分 类 号：TM712[电气工程—电力系统及自动化]