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Process Systems Engineering
Improved frequency response model identification method for processes with initial cyclic-steady-state
Article first published online: 2 MAR 2011
DOI: 10.1002/aic.12550
Copyright © 2011 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Cheon, Y. J., Sung, S. W., Lee, J., Je, C. H. and Lee, I.-B. (2011), Improved frequency response model identification method for processes with initial cyclic-steady-state. AIChE J., 57: 3429–3435. doi: 10.1002/aic.12550
Publication History
- Issue published online: 4 NOV 2011
- Article first published online: 2 MAR 2011
- Accepted manuscript online: 18 JAN 2011 10:08AM EST
- Manuscript Revised: 28 DEC 2010
- Manuscript Received: 9 SEP 2010
Funded by
- Ministry of Knowledge and Economy (MKE).
- Abstract
- Article
- References
- Cited By
Keywords:
- process identification;
- frequency response;
- Fourier transform;
- autotuning
Abstract
A new nonparametric process identification method is proposed to obtain the frequency response model from given process input and output data. The proposed algorithm can estimate exact models for all desired frequencies. It is applicable to various process conditions (initial/final steady-state, initial steady-state/final cyclic-steady-state, and initial/final cyclic-steady-state) and requires a smaller amount of memory than previous methods. Also, it provides the exact models even in the presence of a static disturbance and shows an acceptable robustness to measurement noises. © 2011 American Institute of Chemical Engineers AIChE J, 2011