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Robust control design for systems with probabilistic uncertainty
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kenny, Sean P. Crespo, Luis G. |
| Copyright Year | 2005 |
| Description | This paper presents a reliability- and robustness-based formulation for robust control synthesis for systems with probabilistic uncertainty. In a reliability-based formulation, the probability of violating design requirements prescribed by inequality constraints is minimized. In a robustness-based formulation, a metric which measures the tendency of a random variable/process to cluster close to a target scalar/function is minimized. A multi-objective optimization procedure, which combines stability and performance requirements in time and frequency domains, is used to search for robustly optimal compensators. Some of the fundamental differences between the proposed strategy and conventional robust control methods are: (i) unnecessary conservatism is eliminated since there is not need for convex supports, (ii) the most likely plants are favored during synthesis allowing for probabilistic robust optimality, (iii) the tradeoff between robust stability and robust performance can be explored numerically, (iv) the uncertainty set is closely related to parameters with clear physical meaning, and (v) compensators with improved robust characteristics for a given control structure can be synthesized. |
| File Size | 1872483 |
| Page Count | 53 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050110225 |
| Archival Resource Key | ark:/13960/t3kx0cb1q |
| Language | English |
| Publisher Date | 2005-03-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Controllers Robustness Mathematics Stability Control Systems Design Tradeoffs Probability Theory Scalars Targets Random Variables Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
