Development of a 20kw power supply module for ballast water treatment systems

Electrolysis ballast water treatment with effective disinfection effects has been receiving more attentions compared to other methods. Conventional electrolysis ballast water treatment is vulnerable to thermal control and has a disadvantage in size. It is also less flexible due to the all-in-one structure. This paper describes the development of an electrolysis ballast water treatment system using power conversion devices. The power conversion device was developed as a 20kW class module types with very high installation flexibility in order to respond easily to ship structure and demand capacity. This paper explains the electrical characteristics of the applied circuit and the operational principle by simulations and experiments. In addition, this study summarizes the advantages of the developed electrical treatment system and the results of the performance evaluation.