面向沙戈荒新能源基地的构网型场站与同步调相机协调配置策略  

Coordinated Configuration Strategy of Grid-forming Stations and Synchronous Condensers for Renewable Energy Bases in Gobi Desert and Other Arid Areas

作　　者：林俐[1] 徐宁[1] 崔灏 唐传伟 LIN Li;XU Ning;CUI Hao;TANG Chuanwei(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,北京市102206

出　　处：《电力系统自动化》2025年第7期115-125,共11页Automation of Electric Power Systems

基　　金：国家重点研发计划资助项目:“无常规电源支撑的大规模新能源发电基地稳定运行及直流送出关键技术”(2022YFB2402700);国家电网公司科技项目(52272222001J)。

摘　　要：沙戈荒地区新能源基地的开发有力推动了电力系统低碳转型,但由于缺乏就地同步电源,这类基地呈现出低惯量、低短路比的特征。构网型场站与调相机的合理配置能使基地惯量、电压特性得到有效改善,但现有研究往往仅侧重两种特性之一。因此,文中提出了兼顾惯量、电压支撑的构网型场站与同步调相机协调配置策略。首先,分析构网型场站与同步调相机的支撑能力机理及其配置关系;其次,构建基于无功支撑系数的构网型场站改造优先级顺序,依据该顺序确定构网型场站初步配置方案,以满足系统惯量需求;然后,配置同步调相机以满足新能源多场站短路比约束,并计及调相机提供的惯量支撑对初步方案进行修正,实现对构网型场站和同步调相机支撑能力的最大化配置;最后,以中国西北某缺乏同步电源支撑的沙戈荒新能源基地为研究对象进行仿真,验证了所提策略的有效性。The development of renewable energy bases in desert,Gobi and desertification land has given a strong push to the lowcarbon transition of power systems.However,due to the lack of synchronous power source on site,these bases are characterized by low inertia and low short-circuit ratio.The reasonable configuration of grid-forming stations and condensers can effectively improve the inertia and voltage characteristics of the bases,but the existing research often focuses on only one of the two characteristics.Therefore,a coordinated configuration strategy of grid-forming stations and synchronous condensers considering both inertia and voltage support is proposed in this paper.First,the supporting capability mechanism of the grid-forming station and the synchronous condenser and the configuration relationship between them are analyzed.Then,based on the reactive power support coefficient,the priority order of grid-forming station reconstruction is built,and the preliminary configuration scheme of the grid-forming station is determined according to the order to meet the system inertia demand.Further,the synchronous condensers are configured to satisfy the constraint of the short-circuit ratio of multiple renewable energy stations,and the preliminary scheme is modified considering the inertia support provided by condensers.The configuration that maximizes the support capability of gridforming stations and synchronous condensers is achieved eventually.Finally,the effectiveness of the proposed strategy is verified by the simulation with a renewable energy base located in the Gobi Desert and other arid areas in Northwest China which lacks the support of synchronous power source.

关 键 词：沙戈荒地区 新能源基地 惯量 构网型场站 同步调相机 

分 类 号：TM721[电气工程—电力系统及自动化]