Construction and Design of a Switch-Mode Converter for a TFPMSM in Wave Power Application

Abstract: Established climate changes and increasing regulations on fossil fuels makes it important toexplore different options for electric power generation from renewable energy sources. In 2015Sweden had the highest proportion of renewable energy in the European Union and electricitygeneration contributes the most to the proportion of renewable energy. An interestingopportunity to a further improvement on the number of renewable energy sources is wavepower. Wave power is based on the conversion of energy available in the motion of the wavesto electric power. Electric power generation from wave power plants has been studied since1970 and the major obstacles for its development have been the high costs of the plants and lowefficiencies. The KTH researcher PhD Anders Hagnestål, has developed a new type of wavepower generator with significant improvements on the machine’s efficiency. This master thesisdeals with the electrical energy conversion of the electric power provided by the generator. Thedesign and construction of single-phase switch-mode converter used for the electricalconversion AC/DC and DC/AC of the generated electric power is discussed and explained. Theconstructed single-phase converter showed a good electrical design. Nevertheless, importantimprovements are needed in the operating speed of the used microcontroller.