Optimization of electrical energy production in offshore installations

Prosjektet har følgende hovedmål: Optimalisering av elektrisk energiproduksjon på eksisterende olje-og gassinstallasjoner På de fleste av eksisterende olje-og gassplattformer er det gassturbiner som gir strøm til plattformen. Mens turbinene ikke er kon struert for optimal effektivitet ved part-load, opererer de med part-load det meste av tiden. Arbeidet i dette prosjektet fokuserer på følgende spørsmål - Hva er det optimale kontrollsystemet for en kjede av GTs koblet i et autonom kraftnettet? - Hva er det optimale GT design for offshoreplattformer? - Hvilke WHR teknologier kan benyttes for å produsere elektrisitet på offshoreplattformer? - Er energiflyten (forbruk av elektrisk energi) optimal?

The main objective of the project is to increase the energy efficiency in the range 15-20% on offshore installations and thus help to reduce the emissions to the atmosphere. There is a potential to increase the electrical energy production efficiency by using advanced control techniques. It is very common to have a decentralized control system for each gas turbine, but not an adaptive supervisory control system for the overall electrical energy production facility at the installation. The project focuses on developing an adaptive supervisory control system for the overall electrical energy production facility. An advanced condition monitoring system for the relevant production facility, which collects critical information from each gas turbine system and provide the necessary information to the control system The flue gases from the gas turbines have considerable sensible energy which can be utilized to eliminate additional heating systems in the platform and further to produce electrical energy from the heat. On the offshore installations with no oil and gas processing systems, the heat in the flue gases from the gas turbines is not utilized. Thus the scope to produce electrical energy production from the energy available in the flue gases is enormous. The most optimal electrical energy production can be achieved by combined optimization of the gas turbine systems and the waste heat recovery systems. The case to establish this system is the Draugen platform and installation. To obtain commercial solutio ns, both advanced technical solutions and make then commercial, research institutes, universities and commercial companies will collaborate.