drive belt suitable for connection to an alternating electrical grid and power generation installation for use in an electrical grid

摘要

drive belt suitable for connection to an alternating electrical grid and power generation installation for use in an electrical grid is a drive belt (16) comprising an electric machine (18) including a rotor (22) and a stator (20), wherein the stator (20) is connected to an alternating grid (12) and has a stator frequency, and a bidirectional system (24) for converting an alternating current into another alternating current. the conversion system (24) is connected between the grid (12) and the rotor (22) and comprises an ac-dc converter (28) connected to the grid (12), an inverter (30) connected between the ac converter -cc (28) and the rotor (22) and a device (32) for controlling the commutations of the inverter (30) according to a control law. the control law is such that the active power exchanged by the inverter (30) with the rotor (22) is essentially always less than 0.3 times the nominal power of the direct current that flows specifically between the ac-dc converter and the inverter (30) for the frequencies of a target range of between 0.6 times the stator frequency and 1.4 times the stator frequency.