... Abstract Direct drive generators have become advantageous for wind turbines, especially offshore wind, due to their increased reliability and efficiency. Any type of generator must be adequately cooled in order to meet operating conditions preventing the degradation of copper winding insulation...

.... An analytical model was also created to compare the configurations within two leading industry cooling systems. The work suggests that additively manufactured conformal cooling channels incorporated into the stator of direct drive generators allows a reduction in winding temperature advantageous to direct drive...