Application of SPAR-H Method in Human Reliability Analysis of  Digital Nuclear Power Plants

The applicability of SPAR-H method in the digital nuclear power plant has not been fully studied. This paper studied the operator behavior characteristics of the digital nuclear power plant and the application of SPAR-H method in Lingdong Nuclear Power Plant. The study results show that SPAR-H method has some deficiencies, such as over-conservative analysis results, incomplete cognitive process, and over-sensitivity of partial PSF when applied to digital nuclear power plants. In view of the above shortcomings, some suggestions are put forward for SPAR-H method, such as defining the PSF criterion, perfecting the cognitive model of SPAR-H method, and establishing the human factors database, and thus SPAR-H method can be more suitable for HRA of digital nuclear power plants.