Abstract
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 timeinvariant (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 closedloop 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 H∞ 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.
Original language | English (US) |
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Article number | 4895694 |
Pages (from-to) | 1-10 |
Number of pages | 10 |
Journal | IEEE Transactions on Control Systems Technology |
Volume | 18 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2010 |
Keywords
- Controller interpolation
- Gain-scheduling
- H-infinity control
- Suboptimal control
- Switched systems
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering