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Improved Frequency Response Model Identification Method for Processes with Initial Cyclic-Steady-State
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DOI：10.1002/aic.12550.png)
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Abstract
En 中文
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. (C) 2011 American Institute of Chemical Engineers AIChE J, 57: 3429-3435, 2011
Keywords:
process identification
frequency response
Fourier transform
autotuning
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