METHOD OF SCENARIO SELECTION FOR INTEGRATED SYSTEM VALIDATION

抄録

Integrated System Validation is performance-based assessment of integrated human-system interface（HSI） prior to loading in nuclear power plants. Appropriate integrated system validation scenario selection method is to confirm that the activity is sufficient, necessary and orderly. Based on the HSI design of nuclear power plant, this paper proposes a set of systematic and implementable integrated system validation scenario selection method on meeting the review requirements of Human Factors Engineering Program Review Model (NUREG 0711) on sampling of operational conditions, so that the integrated system validation work is more reasonable and efficient.

Since a nuclear power plant design consists of hundreds or thousands of individual HSI devices and plant operations are complex and varied, ISV activities for all operating conditions and human tasks are neither practical nor necessary. Therefore an appropriate context selection approach to ISV is required. ISV scenarios select three elements as tasks, procedures and complex factors, among which tasks and procedures are general elements, and complex factors are considered as additional elements. The three elements (tasks, procedures, and complex factors) ISV scenario selection method introduced in this paper can avoid the disorder of previous scenario selection, and make the scenario selection more systematic and complete. It can not only meet the requirements of regulations and standards, but also make the validation work more reasonable and efficient, and can meet the requirements of all power plants, including new advanced nuclear power units, for the comprehensive validation of integrated HSIs.