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BARD joins with VOITH Turbo

Windpower plant manufacturer BARD has joined with Voith Turbo as a contract partner in the WinDrive project which has recently received the Hermes Award. Both companies have agreed to jointly develop a drive concept for the driveline of the new BARD 5.0 wind turbine.
The BARD Group is developing the technology still further with a new and more efficient drive concept which retains the original rotor diameter of 122 meters and a hub height of 90 metres.
The new BARD 5.0 features an increased output of up to 6.5 MW (7 MVA), an important step towards higher commercial viability of offshore wind power systems.
The central component in the driveline of the turbine will be the Voith WinDrive, which will be used in a fully commercial BARD wind turbine for the first time in the Spring of 2010.
"For us, the Voith WinDrive technology represents the optimum synergy of all existing technologies combined with the latest innovations," comments a BARD spokesman.
"With the WinDrive system we can more closely match the requirements of energy suppliers using windfarms," he said.
WinDrive is a variable-speed planetary gear with a torque converter.
Its key function is to control and convert the variable-speed input of the wind turbine rotor into a constant output speed for synchronous generators. Depending on the wind speed the WinDrive adjusts the wind rotor to its most efficient operating point and its highest efficiency. At nominal power, the WinDrive acts as a back-up for controlling torque limitations.