Example $5$:

A direct driven wind turbine has the following details:

A $12\mathrm{.}6kV,2\mathrm{.}5$MVA,$60-$pole, permanent magnet synchronous generator. The mechanical and electrical efficiencies are $87\%$ and $92\%$ respectively.

Rotor swept area is $2000m^2$ with a rotor efficiency of $42\%.$

Full size WT side AC$/$DC uncontrolled full bridge converter.

Grid side $11kV,2\mathrm{.}5$kVA, three phase DC$/$AC inverter. The inverter is controlled to achieve constant power factor and coupled to the grid via $2$ mH per phase coupling inductance.