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Turbine generator

A technology for turbine generators and generators, which is applied in the fields of hydraulic turbines, horizontal axis turbines and generator assemblies, and wind turbines, and can solve problems such as increasing propulsion loads and increasing the cost of supporting structures

Inactive Publication Date: 2014-11-05
UNIV OF SOUTHAMPTON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conduit is a bulky and expensive component which increases the propulsion load on the device and therefore increases the cost of the supporting structure

Method used

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Examples

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Embodiment Construction

[0046] The power available from a water flow is proportional to the cube of the flow velocity. For tidal flows near the shoreline in estuaries, and in straits between continents and islands, the velocity varies roughly sinusoidally with time, with periods associated with the different tidal flow components. The most favorable locations for development have a maximum flow velocity in excess of 1.5 m / s, for example the Bristol Channel in the UK has a flow velocity of 2.5 m / s. Rivers can flow at speeds up to 3.5m / s, which can be further increased by damming.

[0047] Figure 1 is a view of a fluid turbine assembly 100 suitable for extracting energy from flowing water, either a tidal stream or a river, according to one embodiment of the present invention. The assembly includes a bracket 101 supporting a hydrodynamically efficient ellipsoidal structure. The ellipsoidal structure has a major axis A-A' which is oriented such that the major axis is substantially aligned with the dire...

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PUM

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Abstract

The invention relates to the generation of electricity from flowing fluid and in the preferred embodiment to a horizontal axis turbine and generator assembly. The present invention is applicable to water turbines and the invention is described in relation to this application. It is however to be appreciated that it is applicable to wind turbines. The present invention provides turbine generator for generating electrical power from flowing fluid comprising a rotatable hub having an external surface and a rotational axis arranged, in use, parallel to the direction of the flow, a plurality of blades mounted on the external surface of the hub and extending radially outwards from the hub; a plurality of magnets mounted on a surface inside the rotatable hub said surface arranged to rotate with the rotatable hub thereby forming a rotor of an electrical generator, and a plurality of non-rotating coils fixed to a stationary cylindrical core within the periphery of the rotatable hub, said coils and core thereby forming a stator of the electrical generator.

Description

technical field [0001] The present invention relates to generating electricity from flowing fluids and, in a preferred embodiment, to a horizontal axis turbine and generator assembly. The invention is applicable to water turbines and is described with respect to this application. It should however be understood that the invention is also applicable to wind turbines. Background technique [0002] Climate change, pollution, and energy security are major issues of our time, and addressing them will require major changes to energy infrastructure. Renewable energies are essential in this regard, while fossil fuels are gradually being replaced by clean, non-depleting sources of energy. Among these sources of energy are wind currents and water currents across the surface of the earth. The main method of extracting energy from these wind and water currents is through the use of turbine generators to generate electricity. [0003] The power per unit area available from a fluid fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/18H02K21/24H02K3/28F03D7/02H02P25/22H02K49/10H02M5/458H02M7/49H02K5/132F01D5/14
CPCF03B13/00Y02E10/76H02K7/1838H02K7/1823F03D9/002Y02E10/725H02K2213/03H02P2009/003F05B2220/7068F03B13/105H02K7/11H02K49/102F05B2210/16Y02E10/22H02M2007/4835F05B2220/7066H02P2009/004H02P2101/10H02P2101/15F03D9/25Y02E10/728Y02E10/20Y02E10/72H02M7/4835F03D13/20F03D15/10
Inventor S·M·沙克A·T·弗雷泽M·A·于拉蒂克S·R·特诺克
Owner UNIV OF SOUTHAMPTON