WT-2. Drive train optimization for on-land wind turbine

Design drive train for the series of WT;

• 500 kW (20 rpm, 238 kNm),
• 1 MW (17 rpm, 562 kNm), and
• 3 MW (15 rpm, 1910 kNm).

Overspeed is the same for all the turbines – 1.2. Grid voltage – 10000 V.

Design for lowest cost.

Try different electric machines and different gear ratios. Try different variants with placement of the drive train components.

Assume enough space inside the tower to place e.g. FC and transformer. Include variant with FC and transformer in a container on the ground next to the WT (see the sketch below). Summarize and present all key characteristics in a table.