Case Library Construction Technology of Energy Loss in Distribution Networks Considering Regional Differentiation Theory

Ze Yuan, Weizhou Wang, Jing Peng, Fuchao Liu and Jianhua Yang
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Ze Yuan: College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
Weizhou Wang: State Grid Gansu Electric Power Company, Lanzhou 730046, China
Jing Peng: State Grid Gansu Electric Power Company, Lanzhou 730046, China
Fuchao Liu: State Grid Gansu Electric Power Company, Lanzhou 730046, China
Jianhua Yang: College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China

Energies, 2017, vol. 10, issue 11, 1-14

Abstract: The grid structures, load levels, and running states of distribution networks in different supply regions are known as the influencing factors of energy loss. In this paper, the case library of energy loss is constructed to differentiate the crucial factors of energy loss in the different supply regions. First of all, the characteristic state values are selected as the representation of the cases based on the analysis of energy loss under various voltage classes and in different types of regions. Then, the methods of Grey Relational Analysis and the K-Nearest Neighbor are utilized to implement the critical technologies of case library construction, including case representation, processing, analysis, and retrieval. Moreover, the analysis software of the case library is designed based on the case library construction technology. Some case studies show that there are many differences and similarities concerning the factors that influence the energy loss in different types of regions. In addition, the most relevant sample case can be retrieved from the case library. Compared with the traditional techniques, constructing a case library provides a new way to find out the characteristics of energy loss in different supply regions and constitutes differentiated loss-reducing programs.

Keywords: regional differentiation; case library construction; characteristic state values of cases; case-based reasoning theory (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
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