Adaptive Cascade Generalized Predictive Control

• 作者: Jin Zhao Tao Geng
• 来源期刊: 智能科学国际期刊(英文)
• 学科: 工学
• 关键词: ADAPTIVE CASCADE GENERALIZED PREDICTIVE CONTROL Model Identification CASCADE CONTROL
• 年，卷（期）: 2014,（3）
• 页码范围: 70-79
• 页数: 10页
• 分类号: TP2

摘要

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.