Modeling and simulation of a gearless variable speed wind turbine system with PMSG

Wind turbine designs and production is an advance high-tech technology when considering design features from different manufacturers. The design of a wind turbine gearbox is demanding owing to loading and environmental circumstances in which the gearbox must function, Hence, the need for gearless wind turbine designs. As a replacement for gearbox, gearless wind turbine technology can be used, this actually causes the turbine to be more reliable, by reducing downtime and repair costs, an important special consideration for offshore turbines, a place or terrain some more costly to dispatch skilled workers to carry out maintenance operations. This paper analysis a gearless variable speed wind turbine system with Permanent Magnet Synchronous Generator (PMSG). Modelling and simulation of the gearless variable speed wind turbine scheme with PMSG is implemented by utilizing MATLAB/Simulink software. Results shows that the wind turbine has the capability to sustain an electric-power scheme. This research work is beneficial to Model, simulate and analyze the influence of changes in wind speed and Q-reference of a variable speed wind turbine system with permanent magnet synchronous generator.