考虑负荷特性的光伏消纳能力的模拟与评估  

SIMULATION AND EVALUATION OF PHOTOVOITAIC ABSORPTION CAPACITY CONSIDERING LOAD CHARACTERRISTICS

作　　者：孙万通 陈众[1] 陈慧霞 徐翼 郎坤 Sun Wantong;Chen Zhong;Chen Huixia;Xu Yi;Lang Kun(School of Electrical and Information Engineering,Changsha University of Science and Technology,Changsha 410004,China;State Grid Guantao Branch,Hebei Electric Power Co.,Ltd.,Handan 057750,China)

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410004 [2]国网河北省电力有限公司馆陶分公司,邯郸057750

出　　处：《太阳能学报》2024年第4期475-481,共7页Acta Energiae Solaris Sinica

摘　　要：针对目前在配电网光伏消纳能力评估过程中不能全面考虑电力系统中负荷特性多样化对光伏消纳能力影响的不足,提出一种考虑负荷运行中的实际情况,光伏消纳模拟与概率评估的方法。首先采用支持向量机-随机森林算法对负荷数据进行清洗,再采用改进谱聚类算法对不同类型的负荷特性进行聚类分析,然后基于场景分析法选取不同负荷的类型曲线作为节点处负荷数据,最后基于蒙特卡洛模拟法和均匀抽样法进行光伏消纳方案随机模拟与消纳能力近似评估。基于IEEE 33节点系统算例分析,对有无考虑负荷特性的抽样结果进行对比,有效验证了所述方法的适用性。In view of the shortcomings that the influence of the diversification of load characteristics on the photovoltaic absorption capacity of the power system cannot be fully considered in the process of evaluating the photovoltaic absorption capacity of the distribution network,a method of photovoltaic absorption simulation and probability evaluation considering the actual situation in load operation is proposed.Firstly,the support vector machine-random forest algorithm is used to clean the load data,and then the improved spectral clustering algorithm is used to cluster the different types of load characteristics.Furtherly,the type curves of different loads are selected as the load data at nodes based on the scenario analysis method.Finally,based on the Monte Carlo simulation method and the uniform sampling method,the stochastic simulation of the photovoltaic absorption scheme and the approximate evaluation of the absorption capacity are carried out.Based on the example analysis of IEEE33 node system,the sampling results considering the load characteristics are compared,which effectively verifies the applicability of the proposed method.

关 键 词：配电网 光伏 负荷 改进谱聚类算法 蒙特卡洛模拟法 均匀抽样 

分 类 号：TM715[电气工程—电力系统及自动化]