[논문]A Systems Engineering Approach for CEDM Digital Twin to Support Operator Actions

Mousa, Mostafa Mohammed; Jung, Jae Cheon

doi:10.14248/jkosse.2020.16.2.016

A Systems Engineering Approach for CEDM Digital Twin to Support Operator Actions 원문보기

시스템엔지니어링학술지 = Journal of the Korean Society of Systems Engineering, v.16 no.2, 2020년, pp.16 - 26

Mousa, Mostafa Mohammed (Department of NPP Engineering, KEPCO International Nuclear Graduate School) , Jung, Jae Cheon (Department of NPP Engineering, KEPCO International Nuclear Graduate School)

Abstract ▼ AI-Helper

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.

주제어

표/그림 (9)

그림 [Figure 1] Information model of the control action process
그림 [Figure 2] Systems Engineering V-Model
그림 [Figure 3] General Digital Twin Architecture
그림 [Figure 4] General CEDM Digital Twin Architecture
그림 [Figure 5] CEDM Digital Twin context diagram
그림 [Figure 6] LCO logic for CEA deviation
그림 [Figure 7] action extracted from LCO
그림 [Figure 8] action extracted from event report
표 Classification algorithms validation accuracy

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문제 정의

This paper introduced a systems engineering approach for applying Digital Twin technology concept to the CEDM complex system in a nuclear power plant to support operator actions. Systems engineering V-model is used to represent the stepwise development of a new system by addressing the requirements and balances development activities with their corresponding testing activities.
This paper proposes the operational concept of a digital twin with a recommender system that would provide recommendations according to the LCO.

가설 설정

1)The CEDM digital twin should maintain and improve plant operational safety and performance.
3)System should predict how the process going to help the operator in mitigation abnormal situations.

참고문헌 (15)

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