AFGELAST: IMAREST lecture: Integrity of (dual fuel) electric power plants for (large) DP-vessels
DIT EVENEMENT IS AFGELAST
Speakers: Paul Bracke and Shuang Li (Bakker Sliedrecht)
Topic: Integrity of (dual fuel) electric power plants for (large) DP-vessels
The safest way of operating a DP-vessel equipped with a High Voltage diesel electric power plant is a mode were all bus ties are opened. However this way of operation it not very fuel efficient, bad for emissions, high running hours, fouling the engines etc. The market asks for a power plant with a reduced number of generators so in a mode with closed bus tie(s). It will be explained what the effects are for the requirements for the DP power plant. Furthermore it will be shown that a power plant in closed ring mode is the most flexible and efficient. However a closed bus or closed ring configuration effects the integrity of the power plant and requires additional protection on system level. It will be demonstrated how these protections are operating and how they are tested. Results are shown from a 40 MW 11kV power plant for a DP-vessel equipped with 4 Dual Fuel (diesel and LNG) engines which added additional phenomena due to differences in dynamic behaviour of the engines.