Husum Wind Energy Congress
Session title: “Engineering Offshore”
Date: Wednesday, 19 September 2012
Time: 12:00 – 12:45
Presentation title: Medium-Speed Brushless DFIG Drivetrain
Presenter: Peter Tavner, Wind Technologies Ltd
We will present the results from testing a 250 kW medium-speed Brushless DFIG system developed by Wind Technologies Ltd. The new drivetrain concept comprising a medium-speed Brushless DFIG, a partially rated converter and a simplified 2-stage gearbox offers a low-cost, low maintenance and reliable solution for wind turbine applications, particularly for offshore installations. In addition, the Brushless DFIG has enhanced low-voltage ride-through (LVRT) performance during grid faults which eliminates the need for additional protection hardware such as crowbar.
The presentation will also discuss the quantified assessment of ‘cost of energy’ for a multi-MW Brushless DFIG drivetrain as compared to conventional drivetrains based on DFIGs and PMGs.