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The safety-class distributed control system (DCS) realizes functions such as emergency trip and engineered safety features actuation, ensuring the safety and stability of nuclear reactor. To enhance the performance and quality of safety-class DCS, Analytic Hierarchy Process (AHP) is introduced to establish the relationship between target layer, criterion layer, index layer and performance evaluation targets, decision factors and performance indicators. AHP model is constructed through processes such as construction of the judgment matrix, weight calculation and consistency verification. Based on the model, the weight of the corresponding optimization measures in the index layer were quantitatively evaluated, and the optimization plan was formulated according to the evaluation conclusion. Taking ACP1000 Zhangzhou nuclear power plant safety-class DCS as an example, the primary influencing factors of the response time performance and quality were effectively improved, and the applicability of the method to the quality improvement of safety-class DCS was proved.

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Research on Performance Evaluation Methods for Nuclear Safety-Class DCS

  • 会议论文

  • 发表日期：

    2025年

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  • Xiao-jun Deng,
  • Shi-man Feng,
  • Die Hu,
  • Shi-yong Chen,
  • Ping Xu

摘要

The safety-class distributed control system (DCS) realizes functions such as emergency trip and engineered safety features actuation, ensuring the safety and stability of nuclear reactor. To enhance the performance and quality of safety-class DCS, Analytic Hierarchy Process (AHP) is introduced to establish the relationship between target layer, criterion layer, index layer and performance evaluation targets, decision factors and performance indicators. AHP model is constructed through processes such as construction of the judgment matrix, weight calculation and consistency verification. Based on the model, the weight of the corresponding optimization measures in the index layer were quantitatively evaluated, and the optimization plan was formulated according to the evaluation conclusion. Taking ACP1000 Zhangzhou nuclear power plant safety-class DCS as an example, the primary influencing factors of the response time performance and quality were effectively improved, and the applicability of the method to the quality improvement of safety-class DCS was proved.