Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (3): 62-66.doi: 10.3969/j.issn.1000-565X.2011.03.013

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Analysis of Static Loss Factors Based on AHP-Gray Relation and GM（1,N） Model

Zhang Yong-jun1  Shi Hui1  Liang Jin-zhao2  Han Peng1   

  1. 1. South China university of technology, guangdong province electricity institute ∥ green energy technology key laboratory, guangdong guangzhou 510640; 2. Guangdong power grid corporation power supply bureau zhongshan, guangdong zhongshan 528400
  • Received:2010-04-21 Revised:2010-08-27 Online:2011-03-25 Published:2011-02-01
  • Contact: 张勇军(1973-) ，男，博士，副教授，主要从事电力系统无功优化和电压稳定、电力系统可靠性与规划等研究 E-mail:zhangjun@ scut.edu.cn
  • About author:张勇军(1973-) ，男，博士，副教授，主要从事电力系统无功优化和电压稳定、电力系统可靠性与规划等研究
  • Supported by:

    国家自然科学基金重点资助项目( 50337010)

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Abstract:

Proposed in this paper is an idea of analyzing the correlation degree between static loss factors and line loss rate through gray relation（GR） with variable weights,and a GM（1,N） model for predicting the line loss rate.In this method,first,the impact weights of various factors on the line loss are determined based on the loss mechanism.Then,the relationships between various factors and the line loss rate are compared via the GR method.Finally,strongly-correlated factors are picked to establish a loss-rate model for the prediction of distribution line loss rate and loss reduction potential due to relevant factor optimization.Case analyses show that both the GR analysis and the prediction is of high accuracy,and that the proposed method requires fewer samples and less computation,so that it provides a useful guidance for the energy-saving evaluation and planning of power network.

Key words: gray relation, variable weights, GM(1, N), loss factor, line loss rate