Reliable Decentralized Controller Design for Discrete/continuous-Time, Sampled-Data, and Multirate Systems

Observer-based controller designs are presented that are robust to failures from a preselected set of sensors or actuators for both centralized and decentralized systems. The designs guarantee stability and an $H\sb\infty$-norm bound on the closed-loop system despite failures in any subset of that preselected set of sensors or actuators. The discrete-time divided-difference operator formulation facilitates the solution of three problems: the unification of discrete- and continuous-time results for sampled-data systems, providing a numerical method for solving the decentralized discrete-time design equation; the design of sampled-data decentralized controllers that bound the continuous-time closed-loop system norm; and the design of multirate decentralized digital controllers for systems with sensors and actuators operating at different sampling and zero-order-hold rates.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Shor, Molly Hathaway

Contributors dc:contributor

• Perkins, W.R.,

• Engineering, Electronics and Electrical
• Engineering, System Science

Identifier

(UMI)AAI9305694

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71985