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20082025
most citedTowards model based control of the Vertical Gradient Freeze crystal growth process

15 citations · 29 across the 10 of their papers we have counts for

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math.OC2022★ 1 cited

Late lumping of observer-based state feedback for boundary control systems

Marcus Riesmeier, Frank Woittennek

Infinite-dimensional linear systems with unbounded input and output operators are considered. For the purpose of finite-dimensional observer-based state feedback, an observer appro…

math.OC2022★ 1 cited

Late lumping of transformation-based feedback laws for boundary control systems

Marcus Riesmeier, Frank Woittennek

Late-lumping feedback design for infinite-dimensional linear systems with unbounded input operators is considered. The proposed scheme is suitable for the approximation of backstep…

math.OC2020★ 9 cited

Control of the Vertical Gradient Freeze crystal growth process via backstepping

Stefan Ecklebe, Frank Woittennek, Jan Winkler

This contribution presents a backstepping-based state feedback design for the tracking control of a two-phase Stefan problem which is encountered in the Vertical Gradient Freeze cr…

math.OC2019★ 15 cited

Towards model based control of the Vertical Gradient Freeze crystal growth process

Stefan Ecklebe, Frank Woittennek, Jan Winkler +2

In this contribution tracking control designs using output feedback are presented for a two-phase Stefan problem arising in the modeling of the Vertical Gradient Freeze process. Th…

math.OC2008★ 3 cited

Controllability of networks of one-dimensional second order p.d.e. - An algebraic approach

Frank Woittennek, Hugues Mounier

We discuss controllability of systems that are initially given by boundary coupled p.d.e. of second order. Those systems may be described by modules over a certain subring R of the…