ELECTRIC GENERATOR FOR WIND MOTOR SYSTEMS WITH TWO COUNTER-ROTATING TURBINES

摘要

The invention relates to an electric generator for wind motor systems with two counter-rotating turbines. According to the invention, the generator comprises an internal synchronous generator with permanent magnets and an external asynchronous generator, the two generators being coupled electrically and mechanically, where the synchronous generator comprises an internal inductor (I) and an armature located inside the medial armature (II), where the internal inductor (I) driven in one direction, by the high-speed turbine (1), consists of a magnetic circuit (7) and permanent magnets (8) and generates at the level of the air-gap (δ) a rotating field which induces electromotive voltages in the turns of the polyphase winding (11) located in the notches of the magnetic core (10) within the medial armature (II) fixed on a non-magnetic cylinder (9) which is driven in the opposite direction by the low-speed turbine (2) and which has on the exterior the primary winding of the asynchronous generator which consists of a magnetic core (12) with notches wherein there are the conductors of another polyphase winding (13) which is serially connected, by reversing the succession of phases, with the polyphase winding (11) within the medial armature (II), so that the currents which close between the two polyphase windings (11, 13) generate at the level of the air gap (δ) a rotating field having the same sense of rotation as the medial armature (II) which, in its turn, induces electromotive voltages in the polyphase winding (20) of the fixed external armature (III) which is the secondary winding of the asynchronous generator, at the terminals of which the electric power is supplied.