Abstract: A wind turbine (1) with an external stator generator includes a tower (20), a shuttle (30) positioned on the tower (20), a wind rotor (50) having at least one blade (51) hit by a wind flow, and an electric generator (40) for producing an electric current from the wind flow mounted inside the shuttle (30). The generator (40), of the radial flow kind, includes a stator (41) and a rotor (42); the stator (41) being external to the rotor (42); the wind turbine (1) including a support bearing (60) of the wind rotor (50) and of the rotor of the generator (42). The bearing (60) includes a first and second ring (61, 62); the first ring (61) being fixed with respect to the shuttle (30); the second ring (62) rotating with respect to the shuttle (30); the bearing (60) being installed in a stress relief position of at least one part of the frame of the generator (31).
Abstract: A control system (50, 100) is for wind power plants including aerogenerators (10) provided with DC modular converters (40). The control system (50, 100) includes devices for receiving at least a voltage signal coming from a DC medium voltage line (MTDC) electrically connected to the converters (40) and a mechanical torque signal (CRIF) produced by the aerogenerators (10) and controls AC-DC conversion modules (40a?-40a??) of the plant. The modules have electronic devices driven by impressed voltage and producing on their outputs a respective partial continuous voltage (Vdci). For each aerogenerator (10) there are secondary control stages (100) and a single main control stage (50). Each of the secondary control stages (100) supplies control signals to a respective AC-DC conversion module (40a?-40a??) and is designed to keep the partial continuous voltage (Vdci) at a constant value.
Type:
Application
Filed:
September 30, 2010
Publication date:
August 30, 2012
Applicant:
Trevi Energy S.p.A
Inventors:
Francesco Castelli Dezza, Gabriele Marchegiani, Fabio Pallotti, Gabriele Rosati
Abstract: A modular converter 30 for converting the electric power produced by aerogenerators, designed to be used within a wind-power plant, which is equipped with: input terminals 30a designed to be connected to an electric-power generator 3 of a single-phase or multiphase type; output terminals 30b; and control devices 36 for controlling the power of the electric-power generator 3. The modular converter has multiple modules 31 designed to receive on their inputs 31.1 alternating electric current and to produce on the respective outputs 31.2a, 31.2b direct electric current to be distributed within the wind-power plant, and, moreover, the control devices 36 receive a signal from the modules 31 and act on the electric-power generator 3.
Type:
Grant
Filed:
April 28, 2009
Date of Patent:
May 8, 2012
Assignee:
Trevi Energy S.p.A.
Inventors:
Francesco Castelli Dezza, Fabio Pallotti, Gabriele Marghegiani
Abstract: A modular converter 30 for converting the electric power produced by aerogenerators, designed to be used within a wind-power plant, which is equipped with: input terminals 30a designed to be connected to an electric-power generator 3 of a single-phase or multiphase type; output terminals 30b; and control devices 36 for controlling the power of the electric-power generator 3. The modular converter has multiple modules 31 designed to receive on their inputs 31.1 alternating electric current and to produce on the respective outputs 31.2a, 31.2b direct electric current to be distributed within the wind-power plant, and, moreover, the control devices 36 receive a signal from the modules 31 and act on the electric-power generator 3.
Type:
Application
Filed:
April 28, 2009
Publication date:
November 5, 2009
Applicant:
TREVI ENERGY S.p.A
Inventors:
Francesco Castelli Dezza, Fabio Pallotti, Gabriele Marghegiani