新能源电力系统国家重点实验室(华北电力大学),北京市 102206
林俐(1968—),女,博士,副教授,主要研究方向:电力系统分析与控制、新能源并网及其分析等。E-mail:linli@ncepu.edu.cn
崔灏(2000—),女,通信作者,硕士研究生,主要研究方向:新能源并网及其分析。E-mail:jucute@163.com
徐宁(2000—),女,硕士研究生,主要研究方向:新能源并网及其分析。E-mail:xn000927@163.com
收稿:2024-11-20,
修回:2025-01-19,
网络首发:2025-04-14,
纸质出版:2025-12-10
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林俐,崔灏,徐宁.计及短路比约束的新能源基地构网型场站与调相机协调配置策略[J].电力系统自动化,2025,49(23):57-67.
LIN Li,CUI Hao,XU Ning.Coordinated Configuration Strategy of Grid-forming Stations and Synchronous Condensers in Renewable Energy Base Considering Short-circuit Ratio Constraints[J].Automation of Electric Power Systems,2025,49(23):57-67.
林俐,崔灏,徐宁.计及短路比约束的新能源基地构网型场站与调相机协调配置策略[J].电力系统自动化,2025,49(23):57-67. DOI: 10.7500/AEPS20241120002.
LIN Li,CUI Hao,XU Ning.Coordinated Configuration Strategy of Grid-forming Stations and Synchronous Condensers in Renewable Energy Base Considering Short-circuit Ratio Constraints[J].Automation of Electric Power Systems,2025,49(23):57-67. DOI: 10.7500/AEPS20241120002.
“沙戈荒”地区的新能源基地往往地理位置偏远,系统呈现低惯量、低短路比特征。为提高新能源基地的短路比,文中首先分析了基于虚拟同步发电机控制的构网型场站的控制原理,并与跟网型场站和同步发电机的支撑能力进行对比,进一步量化构网型场站的构网运行能力,分析了其运行成本。基于多馈入短路比的定义,提出了含构网型场站的新能源基地多馈入短路比计算方法,并构建了构网型场站短路比灵敏度指标,以此确定构网型场站配置的优先级顺序。进而,设计了一种计及短路比约束的构网型场站与同步调相机的协调配置策略。最后,以某缺乏同步电源支撑的实际新能源基地为算例,仿真验证了所提配置策略的有效性。
Renewable energy bases in the Gobi Desert and other arid areas are often geographically remote
and the system is characterized by low inertia and low short-circuit ratio. To improve the short-circuit ratio of the renewable energy base
this paper first analyzes the control principle of grid-forming stations based on the virtual synchronous generator control. Compared with the support capability of the grid-following station and the synchronous generator
the grid-forming operation capability of the grid-forming station is further quantified
and the operation cost of the grid-forming station is analyzed. Based on the definition of multi-infeed short-circuit ratio
this paper proposes a method for calculating the multi-infeed short-circuit ratio of the renewable energy base containing grid-forming stations
and constructs the sensitivity index of short-circuit ratio for grid-forming stations
to determine the configuration priority order for grid-forming stations. Then
a coordinated configuration strategy of grid-forming stations and synchronous condensers is designed. Finally
an actual renewable energy base that lacks the support of the synchronous power supply is taken as a case to verify the effectiveness of the proposed configuration strategy.
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