Research of Maximum Entropy Method for Determine the Priori Distribution in Reliability Assessment of Low-voltage Switchgear
Bayesian theory is used to assess the reliability of low-voltage switchgear.The priori distribution is the key issues in the whole reliability assessment and it has a great influence on the final results.The maximum entropy method has been taken seriously for it could take full advantage of the prior information and avoid the introduction of other unknown factors.In this paper, based on the definition of two parameter joint entropy of maximum entropy principle, the joint prior distribution was determined and its pan function was constructed,the problem of two-parameter maximum entropy constraint solving was solved by calculating the sequence of parameters m and η using prior information.The prior distribution of low-voltage switchgear was obtained by further calculating the mathematical expectation and the variance.The robustness of maximum entropy method was analysised by combing the relative likelihood of marginal distribution function with field test information in the paper.
Bayes theory Reliability assessmentl Prior distribution Robustness analysis
Meng Wang Jingqin Wang Shuyu Xu Si Tian
Hebei University of Technology Hebei University of Technology;Tianjin Electronic Information College Tianjin 300130, China
国际会议
温州
英文
318-322
2014-11-16（万方平台首次上网日期，不代表论文的发表时间）