The electrical system design of the 2.5 MW wind turbine consists
of a permanent magnet generator and full power conversion.
In the lower tower section, the power module efficiently converts
the energy from the permanent magnet generator into power that
provides frequency and voltage control required by transmission
system operators. The integration of the converter and transformer
down tower , rather than the nacelle, ensures that vibration loads
do not affect the reliability of the power electronics. The converter
cooling system has been designed to minimize moving parts
for reliability and features passive coolers that use the same
wind that powers the turbine.