Flatness-based feedforward control for fast operating point transitions of compressor systems

Osmic, Semir; Berner, Marc Oliver; Schwung, Andreas; Jost, Michael; Mönnigmann, Martin

doi:10.1109/cca.2014.6981566

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…But also adaptive [2] and high-gain control [3] as well as bifurcation-based [26] and optimum criteria-based methods [35] have been used. Moreover, research was done on tracking fast setpoint changes for a coupled compressor/gas turbine system using flatness-based feedforward control [30] and gain-scheduled decoupling control [32]. An advantage of active control is the stabilization of unstable open-loop working points.…”

Section: Introductionmentioning

confidence: 99%

Model based MIN/MAX override control of centrifugal compressor systems

Schulze¹,

Richter²

2023

Preprint

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We consider an application-oriented nonlinear control of centrifugal compressors. Industrial applications require the compressor system to adjust to variable process demands and to be restricted to the valid operation range (e.g. surge limit). We modify a compressor model of Gravdahl and Egeland to account for characteristic features of industrial compressors and combine the framework of nonlinear output regulation via the internal model principle with MIN/MAX-override control in order to implement trajectory tracking between given state constraints. Furthermore the switching scheme as well as the practical stability of the closed-loop MIMO system is analysed by the corresponding switched and impulsive error system. The override control is demonstrated by applying discharge pressure control, anti-surge control and maximum discharge pressure limitation.

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Section: Introductionmentioning

confidence: 99%

Model based MIN/MAX override control of centrifugal compressor systems

Schulze¹,

Richter²

2023

Preprint

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“…The example is a rotary crane (derrick) decomposed into an equivalent portal crane tangential to the trajectory where separate on-line shapers are used (Zavřel et al, 2004;Piazzi et al, 2002). The third approach is usage of differential flatness that constructs the full relationship between the input and all outputs (Post et al, 2011;Schindele et al, 2009;Zimmert and Sawodny, 2010;Osmic et al, 2014;Heyden and Woernle, 2006). The fourth approach is the use of a non-linear quadratic regulator (NQR) for stable solution of the trajectory (Kittnar et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Optimized re-entry input shapers

Beneš

Valášek

2016

jtam

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The paper deals with the design of optimized input shapers for non-vibrational control of flexible mechatronic systems. The described method is based on a combination of advantages from two approaches -precomputed control curves and on-line shapers. The strategy has two steps. Primarily, an optimized precomputed curve is found as a solution to the point-to-point control problem with respect to any requested optimization goals. Then it is transformed into an on-line shaper with the re-entry property. The resulting shaper transforms any arbitrary input signal to a non-vibrational one. In contrast to other techniques, the shaper length is not determined from the system natural frequency. The shaper can be easily modified with respect to position, velocity, acceleration or jerk control. The theoretical results are verified by experiments using a laboratory crane.

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Model-based MIN/MAX override control of centrifugal compressor systems

Schulze,

Richter

2024

Franklin Open

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Flatness-based feedforward control for fast operating point transitions of compressor systems

Cited by 6 publications

References 18 publications

Model based MIN/MAX override control of centrifugal compressor systems

Model based MIN/MAX override control of centrifugal compressor systems

Optimized re-entry input shapers

Model-based MIN/MAX override control of centrifugal compressor systems

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