Patent
Offshore wind turbine with multiple wind rotors and floating system
Reads0
Chats0
TLDR
In this article, a semi-submersible hull with ballast weight that is moveable to increase the system's stability is used to support a wind energy conversion system optimized for offshore application.Abstract:
A wind energy conversion system optimized for offshore application. Each wind turbine includes a semi-submersible hull with ballast weight that is moveable to increase the system's stability. Each wind turbine has an array of rotors distributed on a tower to distribute weight and loads and to improve power production performance where windshear is high. As much of the equipment associated with each rotor as possible is located at the base of the tower to lower the metacentric height. The equipment that may be emplaced at the bottom of the tower could include a power electronic converter, a DC to AC converter, or the entire generator with a mechanical linkage transmitting power from each rotor to the base of the tower. Rather than transmitting electrical power back to shore, it is contemplated to create energy intensive hydrogen-based products at the base of the wind turbine. Alternatively, there could be a central factory ship that utilizes the power produced by a plurality of wind turbines to create a hydrogen-based fuel. The hydrogen based fuel is transported to land and sold into existing markets as a value-added "green" product.read more
Citations
More filters
Patent
Increased power in compressed-gas energy storage and recovery
TL;DR: In this paper, energy is stored or recovered via super-atmospheric compression and expansion of gas in conjunction with substantially adiabatic compression and/or expansion from or to atmospheric pressure.
Patent
Floating foundation supporting framework with buoyancy components, having an open-relief design
Jaehnig Jens,Dahlhaus Frank +1 more
TL;DR: The floating foundation supporting framework as discussed by the authors comprises a plurality of buoyancy elements which are arranged on the outside of a bar-type supporting framework which in turn is connected to ballast elements via cables.
Patent
Rapid response portable hybrid emergency energy generator
TL;DR: In this article, a towable, buoyant hybrid renewable energy platform for producing and storing electrical energy using wind, water, and solar power, or a combination of these methods is presented.
Patent
Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange
Troy O. McBride,Alexander Bell,Benjamin R. Bollinger,Andrew Shang,David Chmiel,Horst Richter,Patrick Magari,Benjamin Cameron +7 more
TL;DR: In this paper, the efficiency of energy storage and recovery systems compressing and expanding gas is improved via heat exchange between the gas and a heat transfer fluid, which is referred to as heat transfer.
Patent
Systems and methods for energy storage and recovery using gas expansion and compression
TL;DR: In various embodiments, energy storage systems are based upon an open-air arrangement in which pressurized gas is expanded in small batches from a high pressure of, e.g., several hundred atmospheres to atmospheric pressure as mentioned in this paper.
References
More filters
Patent
Speed control system for a variable speed wind turbine
TL;DR: In this article, a controller and method for operating a variable speed turbine to better track wind speed fluctuations for greater efficiency in conversion of wind energy to electrical energy is described, where the controller controls the rotor speed in accordance with a wind speed supplied by a wind observer in order to approximately follow the varying wind speeds.
Patent
Maritime power plant system with processes for producing, storing and consuming regenerative energy
TL;DR: In this article, a maritime power plant system for producing, storing and consuming regenerative energy has a support structure on which energy producing devices for producing a continuous supply of energy by at least two different methods from regenerative sources are provided.
Patent
Wind energy facility with a closed cooling circuit
TL;DR: In this paper, the authors proposed a cooling system for a wind energy facility which reduces losses in the facility by evacuating the heat from the cooling circuit by means of the tower or the nacelle.
Patent
Method of controlling operating depth of an electricity-generating device having a tethered water current-driven turbine
TL;DR: In this article, a method for controlling a tethered, underwater, water current-driven turbine, power-generating device is described, where a predetermined maximum depth and a predetermined minimum depth are set.
Patent
Large vertical-axis variable-pitch wind turbine
TL;DR: In this paper, a self-starting vertical-axis wind turbine is proposed for economically competitive power production by driving large grid-connected AC generators. But, it is not suitable for wind power generation.