Safety Assessment for Power Plants using Analytical Hierarchy Process and System Functionality

A safety assessment approach based on analytical hierarchy process and system functionality is proposed in this paper for power plant safety. The multi-hierarchy valuation structure is established on a basis of key influence factors for power plant safety. The preponderant function of system safety is constructed by using system functionality principle and analytical hierarchy process for resolving the problem that systems safety preponderates over the weight sum of sub-systems safety. The proposed analysis approach can adjust the harmonics of safety assessment factors for power plants, and provide decision-making advices or safety simulation means for the enterprise managers for safety management and safety assessment. The proposed method is applied successfully to the enterprise safety assessment of Datang Luoyang Shouyangshan Power Plant.