Abstract: A rotor for an aircraft is described having: a support angularly fixed with respect to an axis and housing a power source; a unit rotatable about axis and housing an electrical load of the resistive type; and a power supply system for the electrical load and comprising: a first transformer electrically interposed between the power source and the load; the first transformer comprises: a first winding arranged on the support and a second winding arranged on the unit, a stator carried by the support, rotationally fixed with respect to axis and to which the first winding is fixed; and a rotor operatively connected to the unit and to which the second winding is fixed; the power supply system comprises a capacitive circuit electrically connected to the first transformer, so as to reduce the reactive power absorbed by the rotary transformer.

Abstract: Wearable device having one or more impact sensors and at least one unit transmitting a detected signals to a remote station, the device being composed of an inner glove wearable under a martial art glove.

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.

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.

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.

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.