In this work, a computationally efficient solution for constraint management of square
multi-input multi-output (MIMO) systems is presented. The solution, referred to as
the Decoupled Reference Governor (DRG), maintains the highly-attractive computational
features of scalar reference governors (SRG) compared to Vector Reference
Governor (VRG) and Command Governor (CG). This work focuses on square MIMO
systems that already achieve the desired tracking performance. The goal of DRG is to
enforce output constraints and simultaneously ensure that the degradation to tracking
performance is minimal. DRG is based on decoupling the input-output dynamics
of the system so that every channel of the system can be viewed as an independent
input-output relationship, followed by the deployment of a bank of scalar reference
governors for each decoupled channel. We present a detailed set-theoretic analysis of
DRG, which highlights its main characteristics. A quantitative comparison between
DRG, SRG, and the VRG is also presented in order to illustrate the computational
advantages of DRG. Finally, a distillation process is introduced as an example to
illustrate the applicability of DRG.
| Identifer | oai:union.ndltd.org:uvm.edu/oai:scholarworks.uvm.edu:graddis-1970 |
| Date | 01 January 2018 |
| Creators | Liu, Yudan |
| Publisher | ScholarWorks @ UVM |
| Source Sets | University of Vermont |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Graduate College Dissertations and Theses |
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