Integrering av Smart-grid teknologi i skip for å unngå tap av kraft.

The advent of diesel-electric power and propulsion systems in the late 1990s has brought significant benefits that maritime vessels benefit from. Instead of utilizing large diesel engines that are directly connected to the vessel's propellers through axles, and in this way must have their own engines for remaining power supplies aboard the vessel, diesel-electric propulsion can be carried out using several smaller engines that make up the total power supply in the vessel. With smart engine management, the relative power demand, where the engines run at an rpm, where the power supply and fuel consumption is optimized, can significantly reduce the vessel's overall fuel consumption. In addition to reduced consumption and selectivity in engine placement and dimensioning, diesel-electric power generation will increase the response time for vessel positioning using electric thrusters. The use of advanced (active and passive) engine drives (drives) in diesel-electric ship systems, and especially AC power systems, introduces harmonic noise (pollution) into the power system. Harmonic noise contributes to increased active loss (power) as well as increased reactive power in the system. Increased level of harmonic noise in a power system can lead to unfortunate events. For example, different components may enter auto-shutdown mode to avoid being damaged. Upper limits for permitted harmonic noise in a shipboard system are regulated by class companies such as DNV-GL, BV and ABS. The aim of this project has been to support and contribute to smart implementations of Power Management systems that can be realized as a product. In particular, two points are laid as foundation for the thesis: 1. Smart control and optimization of power generation through measurements, estimation and prediction of power demand 2. Development of smart harmonic filtering in maritime power generation systems using active power filters (APF) These two aspects are important for achieving increased environmental gains, while increasing the robustness, reliability and safety of the electrical power system. Due to the smart management of power generation, and cancellation / filtering of harmonic noise, reduced fuel consumption and environmental emissions (footprints) are achieved.

Prosjektet vil omfatte fremtidens fremdriftssystem for avanserte fartøy. Vi ser at det er kommet mye ny teknologi innenfor kraftproduksjon og styringen av denne. Samtidig er nå batteriteknologien klar nok til å ha praktisk anvendelse i et kraftsystem om b ord i fartøy. Utfordringen i dag er å få ned drivstoff forbruket til et minimum, for samtidig å ha muligheter til å unngå tap av kraft i kritiske situasjoner. Vi ønsker å se på sammenhengen mellom komponenter som f.eks. dieselmotor, elektrisk motor, gener ator, frekvensomformer, batteri og distribusjon, samt styring av de for optimalisering mhp drivstoff, sikkerhet, kost, plass og vekt. Ulstein samarbeider med komponentleverandør på kraftproduksjon og dette dr.ing. studiet vil bidra inn i et etablert samar beid med denne leverandøren Utfordringen i dag er å få ned drivstoff forbruket til et minimum, for samtidig ha muligheter for å unngå tap av kraft i kritiske situasjoner. Vi ønsker å se på sammensetningen av komponenter som f,eks, dieselmotor, generator, elektrisk motor, frekvensomformer, batteri og distribusjon, samt styring av de for å optimalisere dette mhp drivstoff, sikkerhet, kost og vekt.