Electric solutions avoid losses and provide wide-ranging benefits

摘要

Diesel-electric power is almost considered the norm for many types of offshore support vessels (OSVs), with most ships having four or six diesel gensets and a pair of main propulsion motors, sometimes driving through a gearbox but often directly linked to the main propulsors, especially where the thrust is provided by azimuth thrusters rather than conventional propellers. Multiple gensets allow total power output to be matched to demand with the engines running at optimum speed. When less power is needed, there is no need for all the engines to be running, thus allowing for fuel savings. The number of engines also confers a high degree of redundancy on a diesel-electric ship where even one engine will permit the vessel to maintain some controlled motion in all but the heaviest of seas.