(The) manipulation of time-varying dynamic variables using rule modification method and performance index in NPP accident diagnostics expert system = 원자력발전소 사고진단 전문가시스템에서의 룰변환 방법과 수행지수를 이용한 시간변화에 따른 동적 변수의 처리
The most significantly difficult problem when developing expert system for NPP accident diagnosis and treatment is the manipulation of time-varying dynamic variables. In order to manipulate the time-varying dynamic plant variables, this paper attempts to modify accident diagnosis rules when time is varying. In addition to rule modification method, this system also used transient analysis codes and accident analysis codes as a data-base. In order to simulate this expert system, PROLOG was used for its knowledge representation and its inherent backtracking inference strategy was used for inference engine.