A Robust Controller Interpolation Design Technique

作者：Hencey Brandon^*; Alleyne Andrew G

来源：IEEE Transactions on Control Systems Technology, 2010, 18(1): 1-10.

DOI：10.1109/TCST.2008.2009121

• Controller interpolation
• gain-scheduling
• H-infinity control
• suboptimal control
• switched systems

Switching or blending among controllers is termed controller interpolation. This paper investigates a robust controller interpolation technique and applies it to an experimental test bed. Although an interpolated controller is composed of linear time-invariant (LTI) controllers stabilizing the LTI plant, closed-loop performance and stability are not guaranteed. Thus, it is of interest to design the interpolated controller to guarantee closed-loop stability and a performance level for all interpolation signals describing controller switching sequences and combinations. The performance metric that is under investigation in this paper is the norm. A suboptimal robust interpolated-controller design algorithm is framed in terms of bilinear matrix inequalities. The motivating example demonstrates the efficacy of the robust interpolated-controller design.

• 出版日期2010-1