720577Protoype development of ship-board modular resonant power converter for ballast water management systemsClosedGRD Development of PrototypeInnovate UKEnvironmental damage to marine environments valued at $150bn globally arises from the inadvertent transfer of aquatic invasive species (AIS) in seawater ballast. In response to this, the International Convention for the Control and Management of Ships Ballast Water & Sediments, proposed by the International Maritime Organisation, is expected to be ratified by 2016, upon which ballast water treatment (BWT) systems will be mandatory in all ships over 4,000T. (>55,000 ships globally). Although a number of approaches to BWT exist, electrochlorination (EC) is suitable for all vessels and has high efficacy without further environmental risk. However, widespread deployment of EC is limited by the size of high DC current power supply, based on low frequency power converters, which require very large magnetic rectifier components. Castlet Ltd aim to develop a novel power supply, typeapproved for EC of seawater ballast, providing a step-change in capability with respect to conventional EC power supplies. The outcomes of the project will be demonstrated through two fully commissioned prototype demonstration units, to be used for industry engagement with potential deployers of the technology.