Method and device for regulating a wind machine

A device for regulating an installation for producing electric power comprising an electric alternator having a rotor integral with the rotating part of a wind machine in order to form a rotary assembly, a power electronics module including a means for converting the alternating current produced by the alternator into direct current, and means for measuring the amperage and voltage of the current produced by the alternator and the speed of rotation of the rotary assembly, wherein the means for conversion of the alternating current produced by the alternator into direct current is a pulse width modulating rectifier connected to a digital control and regulating unit regulating the direct current by pulses produced by the pulse width modulating rectifier as a function of the measurement of said amperage and voltage of the current produced by the alternator and said speed of rotation of the rotary assembly.

A method of regulating an installation for producing electric power, the installation having an electric alternator having a rotor integral with a rotating part of a wind machine forming a rotary assembly, and a power electronics module, the method comprising the steps:

• producing an alternating current at the output of an electric alternator and having electrical characteristics, including amperage, voltage, phase difference between current and voltage and frequency;
• converting the alternating current produced by the alternator into pulses of direct current, wherein the electrical characteristics, including amperage, voltage, phase difference between current and voltage and frequency of the alternating electric current are regulated,
• the regulation occurring in response to controlling the speed of rotation of the rotary assembly by resisting torque imposed by the alternator by modulating the pulses of continuous current produced by the conversion means of the power electronics module resulting from the alternating electric current produced by the alternator, wherein the maximum speed of rotation of the rotary assembly of the wind machine is regulated at a value permitting disengagement of the blades of the rotating part of the wind machine for a predetermined wind speed, by modulating the pulses of continuous current produced by said conversion means.