Research on the Transformer Condition Assessment Based on the Entropy Weight Method

Abstract:

As one of the important hinge equipments in the electric power system, the operating reliability of power transformer has deep influences on security and stability of power system. In order to guide transformer maintenance and assess the risk of the electric power system, it is of important significance to know the state of the running insulation of transformer in time and accurately. Based on the analysis of transformer state parameters, the method determining the evaluation index weight has been studied; methods of entropy value objective weight and improved analytic hierarchy process subjective weight have been combined to calculate the weighting coefficients of evaluation indexes. Its correctness has been verified by analyzing examples of transformer operation.

• Periodical: Advanced Materials Research (Volumes 732-733)
• Pages: 930-935
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.732-733.930
• Online since: August 2013
• Authors: Hai Feng Liang*, De Shan Lin
• Keywords: Condition Assessment, Entropy Method, Improved Analytic Hierarchy Process, Transformer

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