SVPWM USING SIC, GAN POWER DRIVEN MOTORS FOR SEA WATER COOLING SYSTEM & BALLAST WATER MANAGEMENT

The major consumption of energy and burning of fuel on board is generally
required for ballast water management, sea water cooling system, cargo operation
and propulsion. As ships get bigger, the pollution is getting worse. Therefore just 16
of the world’s largest ships can produce as much lung-clogging sulphur pollution as
all the world’s cars (800 million cars). The shipping industry is facing ever greater
challenges, especially regarding energy saving and the environment protection. Today
the improvement in energy efficiency has become the most important aspect of
shipping industry to achieve excellence in cost competitiveness. This proposed system
controls the flow there by reduces 60% of fuel consumption and 53% of CO2 emissions
there by reducing the green house effect. Wide bandgap semiconductors, such as silicon carbide (SiC) and gallium nitride (GaN), provide larger bandgaps, higher breakdown electric field, lower switching losses and higher thermal conductivity. Power semiconductor devices made with SiC and GaN are capable of higher blocking voltages, higher switching frequencies, and higher junction temperatures than silicon devices. SiC is by far the most advanced material and, hence, is the subject of attention from power electronics