A robustness analysis with respect to exogenous perturbations for flatness-based exact feedforward linearization

Hagenmeyer, Veit; Delaleau, Emmanuel

doi:10.1016/s1474-6670(17)31222-3

Cited by 3 publications

(10 citation statements)

References 12 publications

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“…Then the desired state trajectory x 2,d is determined solving the uniquely invertible output equation (10). The desired trajectory z d of the flat output is calculated via a numerical solution of differential equation (20) …”

Section: Flatness-based Feedforward Designmentioning

confidence: 99%

“…x 2 √ (20) in which x 1 can be substituted by (16). As outlined in [17] relation (20) can be regarded as a diffeomorphic representation of the one-dimensional internal dynamics of system (9) with respect to output (10).…”

Section: Flatness-based Feedforward Designmentioning

confidence: 99%

“…As outlined in [17] relation (20) can be regarded as a diffeomorphic representation of the one-dimensional internal dynamics of system (9) with respect to output (10). As the corresponding zero dynamics is asymptotically stable; see [12], the flat output z remains bounded.…”

Section: Flatness-based Feedforward Designmentioning

confidence: 99%

“…A detailed discussion on the robust stability of the closed-loop system with the structure shown in Fig. 7 can be found in [19,20].…”

Section: Feedback Designmentioning

confidence: 99%

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Flatness‐based deposition rate control of thermally evaporated organic semiconductors

Steinberger¹,

Horn²,

Fian

2013

IET Control Theory & Applications

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The most crucial step in manufacturing organic electronic devices is the deposition of the active organic layers. This deposition is mostly achieved by thermal evaporation of special organic materials out of an evaporation cell in a high-vacuum environment. The major goal is to produce a thin layer with a well-defined deposition rate. In this study, a mathematical model of the deposition process is presented and a procedure for identifying the unknown model parameters is given. The model covers the transient evaporation of organic materials as well as the thermal behaviour of the evaporation source. A control law based on the concepts of differential flatness turned out to be superior to conventional control strategies. The controller is tested on a real world high-vacuum system using two different evaporation materials. Finally, it is demonstrated, that the proposed approach yields improved layer morphologies that are the basis of outstanding device characteristics.

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Section: Flatness-based Feedforward Designmentioning

confidence: 99%

Section: Flatness-based Feedforward Designmentioning

confidence: 99%

Section: Flatness-based Feedforward Designmentioning

confidence: 99%

“…A detailed discussion on the robust stability of the closed-loop system with the structure shown in Fig. 7 can be found in [19,20].…”

Section: Feedback Designmentioning

confidence: 99%

See 2 more Smart Citations

Flatness‐based deposition rate control of thermally evaporated organic semiconductors

Steinberger¹,

Horn²,

Fian

2013

IET Control Theory & Applications

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“…Remark that the case of robustness w.r.t. exogenous robustness is dealt with in Hagenmeyer and Delaleau (2004).…”

Section: Robustness Analysismentioning

confidence: 99%

Continuous-time non-linear flatness-based predictive control: an exact feedforward linearisation setting with an induction drive example

Hagenmeyer

Delaleau

2008

International Journal of Control

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To cite this article: V. Hagenmeyer & E. Delaleau (2008) Continuous-time non-linear flatness-based predictive control: an exact feedforward linearisation setting with an induction drive exampleA general flatness-based framework for non-linear continuous-time predictive control is presented. It extends the results of Fliess and Marquez (2000) to the non-linear case. The mathematical setting, which is valid for multivariable systems, is provided by the theory of flatness-based exact feedforward linearisation introduced by the authors (Hagenmeyer and Delaleau 2003b). Thereby differential flatness does not only yield an easy calculation of the predicted trajectories considering the respective system constraints, but allows to use simple linear feedback parts in a two-degree-of-freedom control structure. Moreover, this formalism permits one to handle non-minimum phase systems, and furthermore to deal with parameter uncertainties and exogenous perturbations. Respective robustness analysis tools are available. Finally, an induction drive example is discussed in detail and experimental results for this fast electro-mechanical system are presented.

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Sliding Mode Control

Sira‐Ramírez

2015

Control Engineering

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A robustness analysis with respect to exogenous perturbations for flatness-based exact feedforward linearization

Cited by 3 publications

References 12 publications

Flatness‐based deposition rate control of thermally evaporated organic semiconductors

Flatness‐based deposition rate control of thermally evaporated organic semiconductors

Continuous-time non-linear flatness-based predictive control: an exact feedforward linearisation setting with an induction drive example

Sliding Mode Control

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