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Adaptive Cascade Generalized Predictive Control

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DOI: 10.4236/ijis.2014.43009    2,179 Downloads   2,738 Views   Citations
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ABSTRACT

Cascade control is one of the most popular structures for process control as it is a special architecture for dealing with disturbances. However, the drawbacks of cascade control are obvious that primary controller and secondary controller should be tuned together, which influences each other. In this paper, a new Adaptive Cascade Generalized Predictive Controller (ACGPC) is introduced. ACGPC is a method issued from GPC and the inner and outer controllers of a cascade system are replaced by one cascade generalized predictive controller, where both loops model are updated by Recursive Least Squares method. Compared with existing methods, the new method is simpler and yet more effective. It can be directly integrated into commercially available industrial auto-tuning systems. Some examples are given to illustrate the effectiveness and robustness of the proposed method.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Geng, T. and Zhao, J. (2014) Adaptive Cascade Generalized Predictive Control. International Journal of Intelligence Science, 4, 70-79. doi: 10.4236/ijis.2014.43009.

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