Evolution of wind turbine size and the power electronics seen from 1980 to 2018

The size of individual wind turbine is also increasing dramatically to obtain a reduced price per generated kilowatt hour. In 2012, the average turbine size delivered to the market was 1.8 MW, among which the average offshore turbine has achieved a size of 4-MW. The growing trends of emerging turbine size between 1980 and 2018 are shown in Figure, where the development of power electronics in the WTS (rating coverage and function role) is also shown. It is noted that the cutting-edge 8-MW wind turbines with a diameter of 164 m have already shown up in 2012. Right now most of the turbine manufacturers are developing products in the power range 4.5–8 MW, and it is expected that more and more large wind turbines with multimegawatt power level, (even up to 10-MW will appear in 2018), will be present in the next decade—driven mainly by the considerations to lower down the cost of energy.

Frede Blaabjerg and Ke Ma “Future on Power Electronics for Wind Turbine Systems” IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 1, No. 3, September 2013


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