Abstract: Aiming at the problem that the semantic ambiguity and the correlation between indicators are not considered in the process of power terminal security evaluation, a weight determination method based on fuzzy AHPDEMATEL method is proposed, and then the security of power terminals is evaluated by VIKOR method. Firstly, the fuzzy theory is introduced into the AHP method and DEMATEL to solve the defect of the deviation caused by the semantic ambiguity and the strong subjectivity. At the same time, the centrality is calculated to judge the importance degree of the index in the evaluation system and solve the influence of the coupling between indicators on the evaluation result. Fuzzy AHP and DEMATEL method are integrated to determine the comprehensive weight. Then, based on VIKOR method, the security of five different power terminals is evaluated considering the preference of decision makers. Finally, through case analysis and method comparison, it is shown that the method proposed in this paper considers the uncertainty caused by semantic ambiguity in the evaluation and the coupling between security indicators, which is more objective to evaluate the security of power terminals

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摘要： 针对电力终端安全评估过程中未考虑语义模糊以及指标之间关联性的问题，提出了一种基于模糊AHPDEMATEL方法的权重确定方法，再利用VIKOR方法进行评估.首先将模糊理论引入AHP方法与DEMATEL方法中，解决语义模糊以及主观性过强对结果造成偏差的缺陷，同时通过计算中心度来判断指标在评估系统中的重要程度，解决指标间相互耦合对评估结果的影响.综合模糊AHP与DEMATEL方法，确定出综合权重.然后基于VIKOR方法，考虑决策者偏好，对5种不同电力终端的安全性进行评估.最后通过案例分析与方法对比，表明所提方法考虑语义模糊造成的评估过程中的不确定性，同时考虑安全性指标之间相互耦合问题，较为客观地对电力终端安全性进行评估.

关键词: 电力系统, 安全评估, 权重, AHP方法, DEMATEL方法, VIKOR方法