공정시스템 이동현상 화학공정안전 / 유틸리티 플랜트에 대한 최적 총계 오차 판별 방법의 선택 = Selection of Optimal Gross Error Detection Method for Utility Plant

다국어 초록 (Multilingual Abstract)

The measured data in a utility plant have little consistency in both mass and energy balances due to random and gross errors, Data Reconciliation tries to resolve this inconsistency in measured data. Gross Errors that include leak, miscalibration of measurement instrumentation, and sensor malfunction should be detected and eliminated from the measured data. Several methods for gross error detection such as Chi-square test, Measurement test, Constraint test, Maximum power test, and Principal component test are compared and analyzed based on several cases in a utility plant. This article summarized the distinguishing features in every tests and proposed optimal processes for each tests.