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摘要 针对交流接触器状态评估的问题,研究了一种基于变权重系数的交流接触器状态评估方法。首先选取影响交流接触器状态的特征参数,建立状态评估指标体系;其次采用层次分析法(AHP)和灰色关联分析法相结合的主客观组合赋权法,得到常权重系数,再引入具备均衡函数的变权重系数方法,得到各个特征参数的变权重系数;最后通过模糊综合评判对交流接触器运行状态进行评估。试验结果表明,提出的状态评估方法能较为准确地反映交流接触器运行的真实状态,有效提高用电系统的安全性和可靠性。 Aiming at the problem of AC contactor state evaluation,a state evaluation method of AC contactor based onvariable weight coefficient was studied. Firstly,the characteristic parameters affecting the state of the A Ccontactor are selected to establish the state evaluation indexsystem. Secondly,using the subjective and objective combination weighting method combined with the analytic hierarchy process( AHP) and the grey relational analysis method,the constant weight coefficient is obtained,and thevariable weight coefficient method with the equilibrium function is introduced to obtain the variable weight coefficient of each characteristic parameter. Finally,theoperation status of the AC contactor is evaluated by fuzzy comprehensive evaluation. The experimental results show thatthe state evaluation method proposed in this paper canaccurately reflect the real state of the AC contact oroperation and effectively improve the safety and reliability of the power system.
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