A method and application study on holistic decision tree for human reliability analysis in nuclear power plant
WU Zhi-yu · Chinese Journal of Nuclear Science and Engineering · 2008
The paper introduces a human reliability analysis method mainly used in Nuclear Power Plant Safety Assessment and the Holistic Decision Tree(HDT) method and how to apply it.The focus is primarily on providing the basic framework and some background of HDT method and steps to perform it.Influence factors and quality descriptors are formed by the interview with operators in Qinshan Nuclear Power Plant and HDT analysis performed for SGTR and SLOCA based on this information.The HDT model can use a graphic tree structure to indicate that error rate is a function of influence factors.HDT method is capable of dealing with the uncertainty in HRA,and it is reliable and practical.