适用于风电集群的分群指标求解及自适应等值建模方法  

Clustering Indicator Solution and Adaptive Equivalent Modeling Method for Wind Power Clusters

作　　者：李东晟 沈沉[1] 吴林林 杨艳晨 LI Dongsheng;SHEN Chen;WU Linlin;YANG Yanchen(Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;State Grid Jibei Electric Power Research Institute,Beijing 100045,China)

机构地区：[1]清华大学电机工程与应用电子技术系,北京市100084 [2]国网冀北电力科学研究院,北京市100045

出　　处：《电力系统自动化》2024年第24期166-173,共8页Automation of Electric Power Systems

基　　金：国家电网公司科技项目(4000-202214067A-1-1-ZN)。

摘　　要：大规模风电集群通常包括多个风电场,分析时需要对其进行等值建模来提高仿真效率。当风电集群内部发生故障时,需要对集群内各风电场等值点进行选择,实现在保留内部故障线路的同时使等值机组数量尽可能少。当风电集群内部还含有其他有源设备时,现有针对风电场的等值建模方法将无法直接应用。为此,提出了一种适用于预想故障分析的风电集群自适应等值建模方法。首先,利用等值模型迭代仿真的方法得到其他有源设备的输出特性及风电机组的分群指标,并基于此对风电集群进行等值建模;然后,提出了各风电场等值点自适应选择方法。将该方法与等值方法相结合实现了风电集群等值模型的自动构建。最后,将所提方法与传统等值方法进行对比,证明了所提方法的有效性。Large-scale wind power clusters usually include multiple wind farms,which need to be equivalently modeled during analysis to improve the simulation efficiency.When a fault occurs within a wind power cluster,it is necessary to select the equivalent point of each wind farm to make the number of equivalent units as small as possible while retaining the internal fault lines.When the wind power cluster contains other active devices,the current equivalent modeling method for wind farms cannot be directly applied.To address this,an adaptive equivalent modeling method for wind power clusters is proposed for anticipated fault analysis.First,the output characteristics of the other active devices and the clustering indicators of wind turbines are obtained by the iterative simulation method of the equivalent model,and on this basis,the equivalent modeling for wind power clusters can be carried out.Then,an adaptive selection method for the equivalent point of each wind farm is proposed.The combination of this method and the equivalent method can realize the automatic construction of the equivalent model for wind power clusters.Finally,the proposed method is compared with the traditional equivalent methods,and the effectiveness of the proposed method is proven.

关 键 词：直驱风电机组 风电场 风电集群 等值建模 仿真 

分 类 号：TM614[电气工程—电力系统及自动化]