Risk Assessment of Power Transformer Based on FTA, FAHP and GA

Abstract:

The reliability of power transformer is very important to the safe operation of the power system. So a new method for power transformer risk assessment based on FTA, FAHP and GA is proposed. The method firstly establishes the power transformer fault tree; Secondly, it analyzes the fault tree through Fuzzy Analytic Hierarchy Process and constructs the fuzzy judgment matrix on transformer fault factors; Finally, it changes the question of solving the weight coefficients of each factor into a mathematical programming problem, and uses Genetic Algorithms to get the result so as to obtain the transformer reliability. In addition, the application result shows the effectiveness of the method above.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 2274-2277
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.2274
• Online since: October 2013
• Authors: Yi Yun Sun, Xin Wang*, Yi Hui Zheng, Li Xue Li, Li Dan Zhou, Qing Shan Xu
• Keywords: Fault Tree, Fuzzy Analytic Hierarchy Process, Genetic Algorithm (GA), Risk Assessment, Transformer

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