Simple Input Disturbance Observer-Based Control: Case Studies | Zendy

Tomáŝ Polóni | Zendy; Ilya Kolmanovsky | Zendy; Boris Rohal’-Ilkiv | Zendy

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Simple Input Disturbance Observer-Based Control: Case Studies

Author(s) -

Tomáŝ Polóni,

Ilya Kolmanovsky,

Boris Rohal’-Ilkiv

Publication year - 2017

Publication title -

journal of dynamic systems measurement and control

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.528

H-Index - 89

eISSN - 1528-9028

pISSN - 0022-0434

DOI - 10.1115/1.4037298

Subject(s) - control theory (sociology) , inverted pendulum , robustness (evolution) , aerodynamics , computer science , matching (statistics) , disturbance (geology) , simple (philosophy) , control system , state observer , control (management) , control engineering , engineering , mathematics , nonlinear system , artificial intelligence , paleontology , philosophy , epistemology , biology , biochemistry , chemistry , physics , statistics , electrical engineering , quantum mechanics , gene , aerospace engineering

In this paper, the application of an input disturbance observer (IDO)-based control, based on a simple input observer previously proposed and used for engine control, is demonstrated in two case studies. The first case study is longitudinal aircraft control with unmodeled aerodynamic nonlinearities satisfying matching conditions. The second case study is the control of an inverted pendulum on a cart which corroborates the ease of integration of IDO-based control into more complex controllers in situations when the matching condition is not satisfied. Improved robustness is demonstrated on an experimental system including changing the pendulum weight which is shown to have no effect on the overall control performance. In both case studies, if the IDO is not applied, the control performance is poor and leads to unstable operation.

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