Martin Jackubowski
Seawind Ocean Technology, Netherlands
Title: Seawind 6- The Complete Offshore wind energy system to lower the CoE
Biography
Biography: Martin Jackubowski
Abstract
Seawind Ocean Technology has developed a complete offshore wind energy system to bring the LCoE below 9 cents reducing CAPEX and OPEX and extending the life-time of the system to 30+ years. Seawind uses a two-bladed wind turbine head with an elastic teetering hinge, which prevents that the moments coming from the rotor action can reach the drive train. The drivetrain of the Seawind 6 only sees rotor torque, no bending moments and no gyroscopic momentum as the elastic hinge eliminates the gyroscope, which a wind turbine with a ridged rotor represents. This enables the Seawind 6 wind turbine to control the power of the turbine simply by yawing, not by pitching blades, reducing the complexity of the wind turbine. The elastic rotor coupling also reduces drastically fatigue and ultimate loads on rotor, drivetrain and the entire turbine structure. The Seawind 6 is designed for 25 years of lifetime and will operate 30+ years in the rough sea environment with a lifetime extension program due to very low fatigue values. The two-bladed configuration opens up assembly and installation methods based on sinking of the entire unit at the site, rather than constructing the offshore wind turbine at sea. Installation of the system and any maintenance operation do not require heavy and costly crane vessels or jack-ups. The system is designed to allow for maintenance and operation on board and has a double access: via sea and via the strong helideck for double engine helicopters mounted on the self-sustaining steel nacelle body.