Abstract: The present invention relates to a control device (1) for an electricity generator set, the generator set comprising: an engine fitted with at least one actuator (2) for controlling fuel admission; an alternator driven by the engine; and a speed regulator (4) for the engine and controlling the actuator(s); the control device being arranged to detect a variation in the load on the alternator as a function of at least one voltage thereof and to control the actuator(s) in such a manner as to compensate for the load variation thus detected; the control device delivering a control signal that acts directly on the actuator(s) taking the place of or being superposed on an output signal of the speed regulator when a variation in load is detected; or the control device delivering a control signal that acts on the actuator(s) via at least a portion of the speed regulator by taking the place of a speed regulator signal.

Abstract: The present invention relates to an alternator comprising: an alternator stator (2) comprising a main secondary winding (7) delivering an output voltage; at least one auxiliary winding (3); and an exciter field winding (5) powered by the auxiliary winding(s); a regulator (20) for regulating the output voltage of the alternator; and an alternator rotor (8) comprising an exciter secondary winding (6); a rotary field winding (4) powered by the exciter secondary winding (6); and a control circuit (10) for controlling the power supply to the rotary field winding (4) and configured to maintain the amplitude of the output voltage from the alternator at a predetermined level by controlling the power supply to the rotary field winding (4) in response to a control signal coming from the voltage regulator (20), the auxiliary winding(s) (3) generating a voltage because they are exposed to a varying magnetic field generated by the rotary field winding (4) in rotation.

Abstract: The present invention provides an electricity generator for a lighting tower having a plurality of discharge lamps, each lamp being of power greater than 750 W, the generator being arranged to be driven by an engine, the generator being a multiphase generator having n phases, where n is an even integer, each phase being independent in a magnetic circuit that is common to all of the phases and being configured to power one lamp, the generator comprising a rotor with permanent magnets, having 3 n poles, and a stator concentric with the rotor and subjected to the radial magnetic flux from the magnets, the stator comprising a stack of laminations of silicon iron having a silicon content greater than 0.5% and of individual thickness greater than 0.35 mm, defining 4 n magnetic circuit teeth, with every other tooth carrying a winding.

Abstract: The present invention relates to an alternator comprising: an alternator stator (2) comprising a main secondary winding (7) delivering an output voltage; at least one auxiliary winding (3); and an exciter field winding (5) powered by the auxiliary winding(s); a regulator (20) for regulating the output voltage of the alternator; and an alternator rotor (8) comprising an exciter secondary winding (6); a rotary field winding (4) powered by the exciter secondary winding (6); and a control circuit (10) for controlling the power supply to the rotary field winding (4) and configured to maintain the amplitude of the output voltage from the alternator at a predetermined level by controlling the power supply to the rotary field winding (4) in response to a control signal coming from the voltage regulator (20), the auxiliary winding(s) (3) generating a voltage because they are exposed to a varying magnetic field generated by the rotary field winding (4) in rotation.

Abstract: The present invention relates to a control device (1) for an electricity generator set, the generator set comprising: an engine fitted with at least one actuator (2) for controlling fuel admission; an alternator driven by the engine; and a speed regulator (4) for the engine and controlling the actuator(s); the control device being arranged to detect a variation in the load on the alternator as a function of at least one voltage thereof and to control the actuator(s) in such a manner as to compensate for the load variation thus detected; the control device delivering a control signal that acts directly on the actuator(s) taking the place of or being superposed on an output signal of the speed regulator when a variation in load is detected; or the control device delivering a control signal that acts on the actuator(s) via at least a portion of the speed regulator by taking the place of a speed regulator signal.

Abstract: The present invention provides an electricity generator for a lighting tower having a plurality of discharge lamps, each lamp being of power greater than 750 W, the generator being arranged to be driven by an engine, the generator being a multiphase generator having n phases, where n is an even integer, each phase being independent in a magnetic circuit that is common to all of the phases and being configured to power one lamp, the generator comprising a rotor with permanent magnets, having 3 n poles, and a stator concentric with the rotor and subjected to the radial magnetic flux from the magnets, the stator comprising a stack of laminations of silicon iron having a silicon content greater than 0.5% and of individual thickness greater than 0.35 mm, defining 4 n magnetic circuit teeth, with every other tooth carrying a winding.