Journal of the Korean Society of Systems Engineering (시스템엔지니어링학술지)

The Korean Society of Systems Engineering (한국시스템엔지니어링학회)
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A Systems Engineering Approach for CEDM Digital Twin to Support Operator Actions

  • Mousa, Mostafa Mohammed (Department of NPP Engineering, KEPCO International Nuclear Graduate School) ;
  • Jung, Jae Cheon (Department of NPP Engineering, KEPCO International Nuclear Graduate School)
  • Received : 2020.08.27
  • Accepted : 2020.12.15
  • Published : 2020.12.31
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Abstract

Improving operator performance in complex and time-critical situations is critical to maintain plant safety and operability. These situations require quick detection, diagnosis, and mitigation actions to recover from the root cause of failure. One of the key challenges for operators in nuclear power plants is information management and following the control procedures and instructions. Nowadays Digital Twin technology can be used for analyzing and fast detection of failures and transient situations with the recommender system to provide the operator or maintenance engineer with recommended action to be carried out. Systems engineering approach (SE) is used in developing a digital twin for the CEDM system to support operator actions when there is a misalignment in the control element assembly group. Systems engineering is introduced for identifying the requirements, operational concept, and associated verification and validation steps required in the development process. The system developed by using a machine learning algorithm with a text mining technique to extract the required actions from limiting conditions for operations (LCO) or procedures that represent certain tasks.

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