Nonlinear MPC using an Identified LPV Model

详细信息    查看全文

• 作者：Zuhua Xu ; Jun Zhao* ; Jixin Qian ; Yucai Zhu
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2009
• 出版时间：March 18, 2009
• 年：2009
• 卷：48
• 期：6
• 页码：3043-3051
• 全文大小：253K
• 年卷期：v.48,no.6(March 18, 2009)
• ISSN：1520-5045

文摘

A method of nonlinear model predictive control based on an identified LPV model is proposed. In process identification, a linear parameter varying (LPV) model approach is used. First, typical working-points are selected and linear models are identified using data sets at various working-points; then the LPV model is identified by interpolating the linear models using total data that include transition test data. Further, nonlinear model predictive control based on the LPV model is proposed. The control action is computed via a multistep linearization method of nonlinear optimization problem. The method uses low cost tests and can reach higher control performance than linear MPC. Simulation studies are used to verify the effectiveness of the method.