Analysis and Design of Partially Decentralized Controllers
It is well-known that decentralized controllers may not achieve desired performance for a strongly-coupled multivariable process, and multivariable controllers are usually complex in structure and difficult to implement in practice, so partially decentralized controllers (PDC) may be used to improve the performance while retaining the simplicity of decentralized controllers. In this paper, a partially decentralized controller is designed for a distillation column. The PDC structure is analyzed via Gramian based interaction measure, and an expansion method is used to design the PDC. Robust stability of the closed-loop control system under the PDC is analyzed via the structure singular value method. Simulation results show that the PDC can achieve better performance and robustness than decentralized controllers.
Partially decentralized control (PDC) Gramian interaction measure Expansion independent design method Non-square internal model Control Robustness
Guannan Lou Wen Tan
School of Control & Computer Engineering, North China Electric Power University, Zhuxinzhuang,Dewai, School of Control & Computer Engineering, North China Electric Power University, Zhuxinzhuang, Dewai
国际会议
2011 China Control and Decision Conference(2011中国控制与决策会议 CCDC)
四川绵阳
英文
623-628
2011-05-23（万方平台首次上网日期，不代表论文的发表时间）