Nonlinear decoupling control of compressor systems for fast load transients in combined cycle power plants

Schwung, Andreas; Berner, Patrik Simon; Osmic, Semir; Jost, Michael; Mönnigmann, Martin

doi:10.1109/cca.2014.6981324

Cited by 7 publications

(2 citation statements)

References 16 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

View full text Add to dashboard Cite

show abstract

“…This paper introduces a differential flatness theory approach for control and state estimation in electric power units consisting of gas‐turbines connected to synchronous generators. There has been a rapid growth in the demand for electric energy and this had made apparent the necessity of advanced and optimised control schemes for electric power units [1–7]. Power generation units consisting of a gas turbine and of a synchronous generator exhibit strong non‐linearities and the solution of the associated control problem is a non‐trivial procedure [8–12].…”

Section: Introductionmentioning

confidence: 99%