학술논문
Implementation and testing of a fault detection software tool for improving control system performance in a large commercial building
Document Type
Conference
Author
Source
Conference: ACEEE 2000 Summer Study on Energy American Council for an Energy Efficient Economy, Asilomar Conference Center, Pacific Grove, CA, August 20-25, 2000
Subject
Language
English
Abstract
This paper describes a model-based, feedforward control scheme that can detect faults in the controlled process and improve control performance over traditional PID control. The tool uses static simulation models of the system under control to generate feed-forward control action, which acts as a reference of correct operation. Faults that occur in the system cause discrepancies between the feedforward models and the controlled process. The scheme facilitates detection of faults by monitoring the level of these discrepancies. We present results from the first phase of tests on a dual-duct air-handling unit installed in a large office building in San Francisco. We demonstrate the ability of the tool to detect a number of preexisting faults in the system and discuss practical issues related to implementation.