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Technology Innovation in Instrumentation and Control System for Nuclear Power Plant

Technology Innovation in Instrumentation and Control System for Nuclear Power Plant. Takaharu FUKUZAKI, Dr. Eng . Professor, Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo 7-3-1Hongo, Bunkyo-ku, Tokyo, 113-8656, JAPAN

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Technology Innovation in Instrumentation and Control System for Nuclear Power Plant

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  1. Technology InnovationinInstrumentation and Control SystemforNuclear Power Plant Takaharu FUKUZAKI, Dr. Eng. Professor, Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo 7-3-1Hongo, Bunkyo-ku, Tokyo, 113-8656, JAPAN fukuzaki@nuclear.jp

  2. Contents 1. Introduction 2. Core Operation and Management System (COMS) for Nuclear Power Plant 3. Computer-Based Console for Nuclear Power Plant Trial (COCONUT) 4. Lessons Learned from R&D Experience 5. Conclusion

  3. Introduction Achievement #1 • BWR Core Performance Calculation System • [BWR: Boiling Water Reactor] On-line monitoring of power distribution in reactor core by physical-model-based simulation program World leading & EPRI collaboration

  4. Introduction Achievement #2 ABWR Instrumentation and Control System [ABWR: Advanced BWR] Enlargement of automatic operation One-man control prototype console Digitalization of control console

  5. Core Performance Calculation ProgramConstitution 5

  6. Core Performance Calculation ProgramFlowchart and Models 6

  7. Core Performance Calculation ProgramAdaptive capability 7

  8. Core Performance Calculation ProgramParameter optimization 8

  9. Core Performance Calculation ProgramPower correction factor calculation 9

  10. Core Performance Calculation ProgramControl rod dependent power correction 10

  11. Core Performance Calculation ProgramPredicting mode calculation 11

  12. Core Performance Calculation ProgramEvaluation of thermal power prediction 12

  13. Core Performance Calculation Program Evaluation of power distribution 13

  14. Transition of Man-Machine Interfacesin Main Control Room Improved Advanced Conventional (Monitoring)(Decision)(Operation) (Monitoring)(Decision) (Monitoring)(Decision)(Operation) Operator Operator Operator Advanced Device Conventional I&C Conventional I&C Enlarged Automation Primary Sys. Automation Plant Process Plant Process Plant Process

  15. NUCAMM-90(NUCAMM: Nuclear Power Plant Complex with Advanced Man-Machine Interface) 15

  16. Selection of Important Alarmsduring Plant Transient

  17. Systematic Problem SolvingInfinite Final Solution Which approach is preferable ? 2nd Stage Current Stage Infinite Final Solution You might lose the way. 1st Stage You might be embarrassed by moving targets. You might be required a little bit more effort and imagination. Infinite Final Solution 1st Stage (F-1)th Stage (F-2)th Stage Current Stage You can easily find the way.

  18. Systematic Problem Solving Technology Evolution S-curve Every technology evolutes in S-curve. Technology transfer is inevitable to reach higher degree. Degree of ideality To minimize cost To increase reliability To increase efficiency To increase performance To operate stably To be operable (5) Retirement (4) Mature (3) Infant / Growth (2) Birth Time (1) Idea Focus of invention is dependent on S-curve position.

  19. Conclusion • Two achievements were introduced: • BWR Core Performance Calculation System • for on-line monitoring of power distribution • in reactor core by physical-model-based simulation program • ABWR Instrumentation and Control System • for enlargement of automatic operation, and • digitalization of control console • Two approaches of Systematic Problem Solving • in Technology Innovation were proposed: • to search from GOAL to START • to recognize Technology Evolution S-curve

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