Reference governors are applied to closed-loop tracking systems that are linear and discrete time and have constraints on state and control variables. Earlier results are extended in signi"cant ways. Disturbance inputs, whose values belong to a speci"ed set, are allowed and a general class of refere
Calculation of recoverable sets for systems with input and state constraints
β Scribed by Jennifer Stephan; Marc Bodson; John Lehoczky
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 278 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0143-2087
No coin nor oath required. For personal study only.
β¦ Synopsis
The paper investigates two methods to calculate recoverable sets for continuous-time, linear time-invariant systems subjected to input and state constraints. A state is said to be recoverable if it can be driven to the equilibrium point while respecting the constraints. The recoverable set is the set of all the recoverable states. The first computational method discussed in the paper is based on the equivalence between recoverability and the existence of a time-optimal control law. The second method uses short-cuts that are applicable to two-dimensional systems and reduce the number of computations by about an order of magnitude. Several examples with distinctive characteristics are presented.
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