- Title
- A Critique of Observers Used in the Context of Feedback Control
- Creator
- Goodwin, Graham C.
- Relation
- 11th International Conference on Intelligent Robotics and Applications (ICIRA 2018). Intelligent Robotics and Applications: 11th International Conference, ICIRA 2018, Newcastle, NSW, Australia, August 9–11, 2018, Proceedings, Part I (Newcastle, NSW 9-11 August, 2018) p. 1-24
- Publisher Link
- http://dx.doi.org/10.1007/978-3-319-97586-3_1
- Publisher
- Springer
- Resource Type
- conference paper
- Date
- 2018
- Description
- One of the core tenets of feedback control is that a system’s state contains all of the information necessary to predict a system’s future response given future inputs. If the state is not directly measured then it can be estimated using a suitably designed observer. This is a powerful idea with widespread consequences. This paper will present a critique of the use of observers in feedback control. Benefits and drawbacks will be highlighted including fundamental design limitations. The analysis will be illustrated by several real world examples including robots executing a repetitive task, relay autotuning in the presence of broadband disturbances, power line signalling in AC microgrid power systems, Type 1 diabetes management and harmonic suppression in power electronics.
- Subject
- fundamental limitations; harmonic suppression; observers; periodic disturbances; type 1 diabetes management; SDG 3; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1446308
- Identifier
- uon:42826
- Identifier
- ISBN:9783319975856
- Language
- eng
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