Dynamic Simulation of Compressor Station Operation Including Centrifugal Compressor and Gas Turbine

Botros, K. K.; Campbell, Paul J.; Mah, D. B.

doi:10.1115/90-gt-344

Cited by 10 publications

(7 citation statements)

References 8 publications

(9 reference statements)

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“…System simulation based on dynamic coupling equations is widely assumed and introduced, among others authors, by Schobeiri et al (1994) and Garrard (1996) with respect to aero engines and Botros (Botros et al, 1991;Botros, 1994) with regard to compressor stations. For control purposes, fast simulation is demanded and the model configuration is kept as simple as possible.…”

Section: Introductionmentioning

confidence: 99%

Hammerstein-model-based predictive control of micro-turbines

Jurado

2006

Int. J. Energy Res.

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SUMMARYMicro-turbine operation is restricted due to mechanical, thermal, and flow limitations. Model predictive control is selected because it can explicitly handle the nonlinearities, and constraints of many variables in a single control formulation. The Hammerstein models are particular kinds of nonlinear systems where the nonlinear block is static and is accompanied by a linear system. This paper suggests a model-based controller for the regulation of a micro-turbine. The performances using both the linear and Hammerstein models are studied with constraints. The results show the capabilities of the proposed control to track a periodic reference trajectory and a significantly better closed-loop response.

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Section: Introductionmentioning

confidence: 99%

Hammerstein-model-based predictive control of micro-turbines

Jurado

2006

Int. J. Energy Res.

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“…Reference [11] studied the application of dynamic simulation for the design and control of compressors. Dynamic behavior of compressor stations was also modeled by [12,13]. These modeling approaches involved deriving a set of nonlinear partial differential equations describing the pipe flow as well as deriving a set of nonlinear algebraic equations describing the flow passing through compressors and valves.…”

Section: S Sanaye and J Mahmoudi-mehr / Technical Assessment Of Isothmentioning

confidence: 99%

“…Based on the gas mass flow rate, the following new form of conservation equations were derived as shown in Appendix 1 and are proposed here as: see Equations (11)(12)(13).…”

Section: Pipelinementioning

confidence: 99%

Technical Assessment of Isothermal and Non-Isothermal Modelings of Natural Gas Pipeline Operational Conditions

Sanaye

Mahmoudimehr

2012

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Résumé -Évaluation technique de modélisations isothermes et non isothermes de conditions opérationnelles de conduites de gaz naturel -Une modélisation d'équipement au sein d'un gazoduc a été réalisée en dérivant une nouvelle forme d'ensemble d'équations de conservation pour un écoulement compressible. Une section du troisième réseau de distribution de gaz iranien (Nourabad-PatavehDorahan, N-P-D) a été ensuite étudiée selon des approches de modélisation isotherme (IT) et non isotherme (NIT) en prenant en compte les effets de la température du sol. Dans la première partie, le fonctionnement en régime stationnaire du gazoduc N-P-D, comprenant une station de compresseurs à Pataveh, a été étudié. Pour les valeurs connues de débit massique de gaz naturel et de pression de gaz d'entrée/sortie aux points Nourabad/Dorahan, les modélisations IT et NIT ont présenté respectivement des écarts maximaux en pourcentages d'environ 33,7 %, 16,6 % et 23 % en ce qui concerne la tête des compresseurs, la vitesse de rotation des compresseurs et les taux de consommation de carburant. Dans la deuxième partie, le fonctionnement instable du gazoduc N-P-D, dû à l'arrêt d'un compresseur à la station de compresseurs de Pataveh (PCS: Pataveh Compressor Station), a été étudié. Les résultats ont confirmé qu'à des températures de sol faibles (0 et 20°C), les compresseurs restants pouvaient compenser la perte d'un compresseur. Toutefois, à des températures de sol supérieures (40 et 50°C), les compresseurs devaient tourner plus vite que la vitesse maximale acceptable pour parvenir à délivrer un certain débit massique sans réduction de la pression de gazoduc requise. Dans tous les cas étudiés ci-dessus, le temps de calcul de la modélisation non isotherme a été approximativement trois fois plus long que celui de la modélisation isotherme. Abstract -Technical Assessment of Isothermal and Non-Isothermal Modelings of Natural Gas Pipeline Operational Conditions -Modeling of equipment in a gas pipeline was performed here by deriving a new form of conservation equation set for compressible flow. Then a section of the third Iranian gas transmission pipeline (Nourabad-Pataveh-Dorahan, N-P-D) was investigated by isothermal (IT) and non-isothermal (NIT) modeling approaches taking into

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“…Thus, the Total Variation Diminishing (TVD) technique can be used with higher-order accuracy in order to resolve sharp discontinuous fronts. Botros et al (1989Botros et al ( , 1991 and Botros (1994) presented a dynamic simulation for a compressor station that consists of nonlinear partial differential equations describing the pipe flow together with nonlinear algebraic equations describing the quasi-steady flow through various valves, constrictions, and compressors. This model included a mathematical description of the control system, which consists of mixed algebraic and ordinary differential equations with some controller limits.…”

Section: Transient Solutionmentioning

confidence: 99%