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提出一种Markov方法与积分法相结合的方法,通过全厂断电后电源恢复的概率安全评价(PSA)详细阐述了该方法。分析表明该方法可以有效地处理时间相关性,消除PSA模型中不必要的保守,同时又可以考虑电厂维修策略等动态过程。
A method based on Markov method and integral method is proposed in this paper. The method is described in detail by the probabilistic safety evaluation (PSA) of power recovery after powering off the whole plant. The analysis shows that this method can deal with the time correlation effectively, eliminate the unnecessary conservativeness in the PSA model and at the same time can consider the dynamic process such as the maintenance strategy of the power plant.