Prakash J, Srinivasan K
Department of Instrumentation Engineering, Madras Institute of Technology, Anna University, Chennai-44, India.
ISA Trans. 2009 Jul;48(3):273-82. doi: 10.1016/j.isatra.2009.02.001. Epub 2009 Mar 19.
In this paper, the authors have represented the nonlinear system as a family of local linear state space models, local PID controllers have been designed on the basis of linear models, and the weighted sum of the output from the local PID controllers (Nonlinear PID controller) has been used to control the nonlinear process. Further, Nonlinear Model Predictive Controller using the family of local linear state space models (F-NMPC) has been developed. The effectiveness of the proposed control schemes has been demonstrated on a CSTR process, which exhibits dynamic nonlinearity.
在本文中，作者将非线性系统表示为一族局部线性状态空间模型，基于线性模型设计了局部PID控制器，并使用局部PID控制器输出的加权和（非线性PID控制器）来控制非线性过程。此外，还开发了使用局部线性状态空间模型族的非线性模型预测控制器（F-NMPC）。所提出的控制方案的有效性已在一个具有动态非线性的连续搅拌槽式反应器（CSTR）过程中得到了验证。
