原子能科学技术
原子能科學技術
원자능과학기술
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2015年
4期
719-724
,共6页
入侵性野草算法%概率因果模型%故障诊断
入侵性野草算法%概率因果模型%故障診斷
입침성야초산법%개솔인과모형%고장진단
invasive weed optimization algorithm%probability causal model%fault diagnosis
针对船用核动力装置故障原因与相应故障征兆之间并非完全一一对应的特点，提出了一种将入侵性野草算法和概率因果模型相结合的故障诊断方法，该方法将概率因果模型中的似然函数作为入侵性野草算法的适应函数，从而将复杂系统的故障诊断转化为优化问题。结果表明，该方法能用于诊断过程中出现的不确定性问题，也可实现通过多个征兆来诊断多个故障的目的，且具有较高的诊断可靠性与实用性。
針對船用覈動力裝置故障原因與相應故障徵兆之間併非完全一一對應的特點，提齣瞭一種將入侵性野草算法和概率因果模型相結閤的故障診斷方法，該方法將概率因果模型中的似然函數作為入侵性野草算法的適應函數，從而將複雜繫統的故障診斷轉化為優化問題。結果錶明，該方法能用于診斷過程中齣現的不確定性問題，也可實現通過多箇徵兆來診斷多箇故障的目的，且具有較高的診斷可靠性與實用性。
침대선용핵동력장치고장원인여상응고장정조지간병비완전일일대응적특점，제출료일충장입침성야초산법화개솔인과모형상결합적고장진단방법，해방법장개솔인과모형중적사연함수작위입침성야초산법적괄응함수，종이장복잡계통적고장진단전화위우화문제。결과표명，해방법능용우진단과정중출현적불학정성문제，야가실현통과다개정조래진단다개고장적목적，차구유교고적진단가고성여실용성。
It is not completely accordant for fault reasons to match up corresponding symptoms of the marine nuclear power plant .A kind of fault diagnosis method was proposed ,which is about invasive weed optimization algorithm combined with probabili‐ty causal model .The probability causal model likelihood function was used as fitness function of the invasive weed optimization algorithm ,after that the fault diagnosis of complex systems can be converted to optimization problem .The simulation results show that the method can not only be used for the process of diagnosis of uncertainty ,but also for the purpose of multiple symptoms to multiple faults diagnose with high reliabili‐ty and practicability .
