VERTICAL AXIS TURBINE DEVELOPTMENT
At the division for electricity, Uppsala University, vertical axis wind turbines are researched from many different aspects including advanced aerodynamical simulations, noise measurements, generator design and system studies.
There are several advantages with using vertical axis wind turbines. The most noticeable advantage is that the turbine accepts wind from any direction and does not need a yaw mechanism. The vertical axis rotation enables the generator to be placed at ground level. This will simplify the generator maintenance and reduce nacelle weight. The wind turbine has a simple structure with fixed blades, i.e. no pitching mechanism, and with few moving parts, which is supposed to lower the requirement for maintenance. Another advantage is that this type of wind turbine is expected to have a lower noise level than conventional turbines.
Some research topics include:
-Experimental research on a 12 kW and a 200 kW prototype
-Modelling of the whole system “from wind to grid”.
-Noise measurements and simulations
-Studies of turbine interaction with electrical system
-Force measurements and dynamical studies
-Aerodynamic simulation method development