Phase Theoretical Line Loss Calculation and Analysis Based on Clustering Theory
Li Xueping1,Liu Yiran1,2,Lu Zhigang1,Bao Feng3
1. Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province Yanshan University Qinhuangdao 066004 China; 2. State Grid Jibei Electric Power Company Limited Qinglong County Electric Power Supply Company Qinhuangdao 066500 China; 3. State Grid Heilongjiang Province Electric Power Company Limited Haerbin 150090 China
Abstract：Automatic acquisition may fail to collect data; what’s more, single section network loss can not depict loss of power grid during a period. In view of the above facts, a method based on clustering theory for phase theoretical line loss calculation and analysis is proposed,which only takes node power injection and parameter variation into account. Firstly, the composition of section network loss is analyzed. Secondly, on the basis of section data, feature vector is extracted. A nuclear feature vector calculation method based on rough set theory is used to deal with the situation of failure acquisition. Weight vector of the clustering center section is calculated to match the feature vector through quantizing the network loss increment caused by node power injection and network parameters variation. Finally, the nearest neighbor clustering is improved to analyse and to obtain the theoretical line loss of any section and any period. The Matlab simulation results demonstrate the effectiveness of the proposed method.
李学平,刘怡然,卢志刚,鲍锋. 基于聚类的阶段理论线损快速计算与分析[J]. 电工技术学报, 2015, 30(12): 367-376.
Li Xueping,Liu Yiran,Lu Zhigang,Bao Feng. Phase Theoretical Line Loss Calculation and Analysis Based on Clustering Theory. Transactions of China Electrotechnical Society, 2015, 30(12): 367-376.
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2015, Vol. 30 
