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The Safety Constraints and Evaluation of I&C Algorithm Configuration Based on SCADE Platform

[+] Author Affiliations
Hua Liu, Xiao-Hua Yang, Zhao-hui Liu, Jie Liu, Shi-yu Yan, Meng Li

University of South China, Hengyang, China

Zhi Chen

Nuclear Power Institute of China, Chengdu, China

Paper No. ICONE25-66327, pp. V001T04A007; 6 pages
doi:10.1115/ICONE25-66327
From:
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 1: Operations and Maintenance, Engineering, Modifications, Life Extension, Life Cycle and Balance of Plant; I&C, Digital Controls, and Influence of Human Factors
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5779-3
  • Copyright © 2017 by ASME

abstract

Algorithm library plays an important role in digital instrument control system. In the design process, software testing and safety verification are focused on safety and reliability of the algorithm library. The generation of trip that is a shutdown signal is applied based on the basic algorithms library of SCADE platform. A new standpoint is proposed. The safety constraints are mainly focus on the configured parameters. The configured parameters are important to the safety and reliability. Relations of parameters among the different modules are very complex. Parameters are easy to be wrongly configured in the design process. The correct or mistakes of the parameters must be considered and checked. The analysis process of safety constraints is established. The algorithm module invariables and constraint rules are concluded according to the functions of each module, inputs and outputs, parameter description in the library. The typical test cases are generated by the correct rules. Safety constraints and analysis have enough operability.

Copyright © 2017 by ASME
Topics: Safety , Algorithms

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