Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)
- 2008.06a
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- Pages.282-287
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- 2008
Real-time steady state identification technology of a heat pump system to develop fault detection and diagnosis system
열펌프의 고장감지 및 진단시스템 구축을 위한 실시간 정상상태 진단기법 개발
- Kim, Min-Sung (Geothermal Energy Research Center, Korea Institute of Energy Research) ;
- Yoon, Seok-Ho (Energy Systems Research Division, Korea Institute of Machinery and Materials) ;
- Kim, Min-Soo (School of Mechanical and Aerospace Engineering, Seoul National University)
- Published : 2008.06.25
Abstract
Identification of steady-state is the first step in developing a fault detection and diagnosis (FDD) system. In a complete FDD system, the steady-state detector will be included as a module in a self-learning algorithm which enables the working system's reference model to "tune" itself to its particular installation. In this study, a steady-state detector of a residential air conditioner based on moving windows was designed. Seven representing measurements were selected as key features for steady-state detection. The optimized moving window size and the feature thresholds was suggested through startup transient test and no-fault steady-state test. Performance of the steady-state detector was verified during indoor load change test. From the research, the general methodology to design a moving window steady-state detector was provided for vapor compression applications.
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