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원자력발전소 PID 공정제어기에 대한 튜닝 최적화 방법
성찬호,민문기,Sung, Chan Ho,Min, Moon Gi 한국압력기기공학회 2014 한국압력기기공학회 논문집 Vol.10 No.1
PID(Proportional, Integral, Derivative) controller is one of the most used process controllers in nuclear power plants. The optimized parameter setting of process controller contributes to the stable operation and efficiency in the operating nuclear power plants. PID parameter setting is tuned when new process control system is established or process control system is changed. It is a burdensome work for I&C(Instrument and Control) engineers to tune the PID controller because it requires a lot of experience and knowledge. When the plant is in operation, inadequate PID parameter setting can be the cause of the unstable process of the plant. Therefore the results of PID parameter setting should be compared, simulated, verified and finally optimized. The practical PID tuning methods used in process controller are tuning operation calculation(Ziegler-Nicholes, Minimum TIAE, Lambda, IMC), exclusive tuning program based on computer and Matlab application. This paper introduces the various tuning methods and suggests an optimized PID tuning process in the operating nuclear power plants.
Jung Ho Kim(김정호),Chan Ho Sung(성찬호) 대한인간공학회 2021 대한인간공학회 학술대회논문집 Vol.2021 No.11
Objective: The aim of this paper is to describe the CPS human factors engineering verification and validation in the integrated system validation. Background: Human Factors Engineering (HFE) is required to be applied to Computerized Procedure System (CPS) in Shin-Kori Units 5&6. In order to achieve a human factors engineering level and ensure the good design of CPS, integrated system validation (ISV) should be performed. The purpose of Shin-Kori Units 5&6 ISV (Integrated System Validation) is to confirm whether the power plant can be operated safely and efficiently when operating by using Man-Machin Interface linked design results. Method: The Purpose of CPS V&V of ISV is to evaluate overall MMI design suitability and Human Performance when using CPS and other MMISs in MCR. For this, CPS designer, operation expert and HFE expert conduct an evaluation by applying various methods such as experiment, observation and survey. ISV was conducted at Simulator in Shin-Kori. 12 scenarios are developed for the ISV ( 9 Design based Accident, DBA, 3 diversity and defense in depth, D3) . In CPS HFE V&V, 3 HEDs (concurrent/independent verification, CPS use in the event of CCF, and plant status information check in Task Group) were identified. For this, we performed CPS Questionnaires and interviews with operators. Results: As a result of the CPS ISV evaluation, it was found that the 3 HEDs had no problem with usability. However, additional CPS requirements (ex, the designation of the crew procedure in the abnormal procedure) have been found, and will be terminated before ISV next year. Conclusion: HEDs for Shin-Kori units 5&6 CPS were terminated through the 1st and 2nd CPS centered HFE V&V and the 1st ISV. Application: Additional requirements from operators for CPS will be reflected before the 2nd ISV to be carried out next year.