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Control loop performance monitoring

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2 Author(s)
C. B. Lynch ; Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada ; G. A. Dumont

Control loop monitoring can be used to improve the performance of processes in industry. The monitoring tools presented are concerned with reducing the output variance of regulation loops. As a result, three different estimators are used to determine the minimum achievable output variance, the time delay and the static input-output relationship of the process. These three properties can be used together or individually to provide insights into the process. Once the methods are introduced and their algorithms outlined, the monitoring tools are tested on data from industrial processes. These results show the capabilities and limitations of the proposed estimation methods and the potential benefits to be obtained from monitoring

Published in:

IEEE Transactions on Control Systems Technology  (Volume:4 ,  Issue: 2 )