Research and development of new generation wind turbines of high-energy efficiency

Research in the field of electricity generation using wind, as a renewable energy source, is one of the energy sector research priorities. Due to the power transfer through a gear multiplier with constant transmission ratio in modern wind turbines, their design has a huge shortage that is reflected in the unsatisfactory regulation of the generator rotor rpm within the optimum interval. The regulation of generator rotor rpm by changing blades pitch results in the efficiency reduction of wind turbines, which can be avoided by applying CVT in wind turbine power transmission. The project will significantly enhance and expand research in the field of wind turbines power transmission by CVT. The transfer of power through wind turbines with CVT transmission requires the redesign of drive train, energetic and control subsystems, therefore, the research will be expanded to mentioned subsystems also. The project proposal foresees the development of other wind turbine components and subsystems that can be manufactured in Serbia. The application of developed components and subsystems will enable the increase in annual electricity production of up to 10%. The key results of the project are: • complete technical documentation for manufacturing of wind turbine family with power rating 300 kW - 5 MW, • developed subsystem for control of the process of wind energy conversion into electric energy, • developed subsystem for operation monitoring of wind turbine components and subsystems.