DIFF Subgroup
F03D 7/042 Full Title
Controlling wind motors (supplying or distributing electrical power H02J, e.g. arrangements for adjusting, eliminating or compensating reactive power in networks H02J3/18; controlling electric generators H02P, e.g. arrangements for controlling electric generators for the purpose of obtaining a desired output H02P9/00) > the wind motors having rotation axis substantially parallel to the air flow entering the rotor > Automatic control; Regulation
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.