This paper presents the concepts of platformless DC connections of offshore wind power plants. First, the paper describes the feasible wind turbine drivetrain arrangements capable of producing sufficiently high DC voltage. Then, electrical system designs are proposed with consideration of balanced preferences between the DC wind turbine and the DC collection and transmission system. After that,...

The dynamically positioned wind turbine concept consists of a floating platform equipped with and propellers. In contrast to conventional offshore turbine, it has no moorings. Instead, the propellers are used keep stationary. It may also be an on-board energy storage system (e.g. batteries, hydrogen, etc.) avoid grid-connection. This is well suited for deployment in far-offshore, where grid-con...

Abstract: Aerodynamics and motion performance of the floating vertical wind turbine (VAWT) were studied in this paper, where the wind turbine was H-type and the floating foundation was truss spar type. Based on the double-multiple-stream-tube theory, the formulae were deduced to calculate the aerodynamic loads acting on the wind turbine considering the motions of the floating foundation. The su...

The wind turbine foundation serves as a permanent construction in the harsh marine corrosive environment, its anticorrosion design is essential to the safe use of the wind turbine structure. At present, there is a significant controversy over the local corrosion mechanism (such as pitting corrosion, and crevice corrosion) and its diffusion mechanism in the academic circle. In the paper, the Far...

In recent years, the use of offshore wind turbines has been considered on the agenda of the countries which have a significant maritime boundary due to more speed and stability of wind at sea. The aim of this study is to investigate the effect of wind turbulence on the aero-hydrodynamic behavior of offshore wind turbines with a monopile platform. Since in the sea, the wind turbine structures ar...