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Development of a cause analysis system for a CPCS trip by using the rule-base deduction method.
Je-Yun Park1, In-Soo Koo, Chang-Ho Sohn
1I&C HFE Department, Korea Atomic Energy Research Institute, Yuseong, Daejeon, Republic of Korea. parkjy1@kaeri.re.kr
ISA Transactions
|March 3, 2009
Summary
A new Cause Analysis System for Core Protection Calculator Systems (CASCPCS) helps nuclear power plant operators quickly identify reactor trip causes. This system enhances plant reliability and simplifies operational management.
Area of Science:
- Nuclear Engineering
- Computer Science
Background:
- Core Protection Calculator Systems (CPCS) initiate reactor trips but do not identify causes.
- Operator analysis of CPCS trip causes is time-consuming and resource-intensive.
Purpose of the Study:
- To develop a Cause Analysis System for Core Protection Calculator Systems (CASCPCS).
- To assist nuclear power plant operators in diagnosing CPCS trip causes efficiently.
Main Methods:
- Utilized a rule-base deduction method for trip cause analysis.
- Developed an inference engine using depth-first searching.
- Constructed a knowledge base including rules, constants, and trip variables.
- Implemented a menu-driven, window-based user interface.
Main Results:
- CASCPCS successfully diagnoses trip causes for CPCS.
- The system significantly reduces time and effort for operators.
- Enhanced plant availability and reliability through faster diagnostics.
Conclusions:
- CASCPCS provides an effective solution for identifying CPCS trip causes.
- The system simplifies management and improves operational efficiency in nuclear power plants.
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