Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
  • F03D—WIND MOTORS
  • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
  • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
  • F03D—WIND MOTORS
  • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
  • F03D9/10—Combinations of wind motors with apparatus storing energy
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
  • F05B2240/00—Components
  • F05B2240/10—Stators
  • F05B2240/12—Fluid guiding means, e.g. vanes
  • F05B2240/122—Vortex generators, turbulators, or the like, for mixing
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
  • F05B2240/00—Components
  • F05B2240/10—Stators
  • F05B2240/13—Stators to collect or cause flow towards or away from turbines
  • F05B2240/131—Stators to collect or cause flow towards or away from turbines by means of vertical structures, i.e. chimneys
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/70—Wind energy
  • Y02E10/72—Wind turbines with rotation axis in wind direction
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
  • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

• the present invention generally relates to generation of wind power electricity. Particularly the present invention relates to a wind power station module, for large-scale wind power production.
• wind power stations are today used to convert the energy content of the wind to electricity.
• the direction of the wind as well as the velocity of the wind changes strongly with the altitude above the surface of the earth.
• the wind force is generally larger with increased altitude above the surface of the earth.
• the wind energy content on 100 meters altitude above the earth is generally three times larger than the wind energy content on 10 meters altitude. In the inland, this relationship can increase to six times. This fact favours wind power generators on high altitude, since the produced effect is directly proportional to the swept area of the rotor blades and the density of air, as well as proportional to the cubic wind velocity.
• wind power station parks can be build. In this way it is possible to establish large-scale wind power production in an environmental reasonable way. Additional large-scale is achievable if the wind power stations in a wind power station park are designed with several generators on each wind power station. In this way the plant area needed to obtain a certain amount of power production, is limited.
• An object of the present invention is to provide a wind power station module that increases the wind power-generated electricity on a limited plant area.
• An advantage with a wind power station module designed according to the present invention, with four wind power generators, is that the wind power-generated electricity on a limited plant surface is increased.
• Another advantage with a wind power station module according to the present invention is that the construction technique may be more effective by large-scale advantages, i.e. investment costs per generated power is lower and the wind power-produced electricity is made more commercially competitive.
• a further object of the present invention is to provide a wind power station utilizing a wind power module according to the present invention, as well as a wind power park utilizing a wind power station according to the present invention.
• Figure 1 shows a side view of a wind power module according to an embodiment of the present invention.
• Figure 2 shows a front view of the wind power module shown in figure 1.
• Figure 3 illustrates schematically a top view of the wind power module shown in figure 2.
• Figure 4 illustrates schematically a top view of a wind power module according to an alternative embodiment.
• Figure 5 illustrates a plurality of wind power modules combined to a plurality of wind power stations .
• Figure 6 illustrates schematically a wind power station park according to an embodiment of the present invention.
• a wind power module 10 comprises four separate individual wind power generators 1, 2, 3, and 4.
• the module 10 is built up around a module stem 5 and the four generators 1-4 are mounted on two horizontal stems 6, 7, which protrude in four directions from the module stem 5.
• the horizontal stems 6 , 7 protrude 10-50 meters, or more, from the module stem 5, above all in dependence on how large rotor blades the generators 1-4 are equipped with.
• the generators 1-4 are mounted on the ends of the stems 6, 7. All four generators 1-4 are mounted for operation in a common wind direction by the stems 6 , 7 being attached to module stem 5, which in turn is pivotally mounted to other modules being part of one and the same wind power station.
• the stems 6 and 7 respectively are individually pivotally mounted on a fixedly mounted module stem 5 and the generators are in pairs mounted for operation in a common wind direction, i.e. generators 1 and 3, and 2 and 4, respectively.
• the stems 6 and 7 respectively are positioned in two planes, preferably such that two fifths of the total height of the module stem 5 is below stem 7, two fifths is between stem 6 and 7, and one fifth is above stem 6.
• Other elevation positions of the stems 6 and 7 on the module stem 5 are preferably adapted considering the prevailing conditions on the plant site, such as described above. Further consideration may be taken to, among other things , the length of the stems 6 and 7 , respectively, as well as mountings of stay wires.
• the generators 2 and 4 are positioned on stem 6 on equal distance from the module stem 5 to minimize structural stress on the wind power module. In a corresponding way the generators 1 and 3 are positioned on stem 7 on equal distance from the module stem 5 to minimize structural stress.
• Generator 3 will be in wind shadow of generator 1 and is arranged to receive the wind from the back of the generator.
• the different wind conditions for generator 3 compared to 1, 2, and 4 entail it to advantageously have deviating effect, i.e. lower effect.
• the total height of the whole module may vary between 30 and 120 meters, or more, in dependence of among other things the same considerations, which has been described above.
• a framework of steel forms the module stem and the horizontal stems , in order to obtain as low production costs as possible, and the stems are supported by ground- attached wires.
• modules in a different material, or in a combination thereof, e.g. the module stem in concrete, alternatively steel tubes as in the conventional wind power generators of today, and the stems, supporting the four generators, of a framework of steel.
• FIG. 4 Stems according to an alternative embodiment compared to those of the first embodiment are illustrated in figure 4.
• the four generators 1-4 are mounted at the ends of a long horizontal stem 6 and a short horizontal stem 7', respectively.
• the generators 2 and 4, and 1 and 3, respectively, are positioned equally distant from the module stem, in order to minimize structural stress .
• a wind power station according to a preferred embodiment is comprised of four modules 10, as described above, standing on top of each other, and thus comprising 16 wind power generators.
• the advantage by using modules 10 is that it is easy to choose how many wind power generators that should be part of the wind power station, in multiples of four. Theoretically it is possible to utilize one module up to an indefinite number of modules . The number is limited, above all, for structural strength reasons.
• Each module stem 5 comprises two pivoted bearings to the horizontal stems with the four generators 1-4, so that each horizontal stem 6 and 7 individually can be directed against the wind. This is advantageous as the wind direction may vary at different heights elevations above the ground. Alternatively, each module may be pivotally attached to the other modules in the wind power station.
• the wind power stations support each other by stay wires attached into adjacent wind power stations, so that the closeness of other wind power stations do not reduce the structural strength of each respective wind power station.
• a plurality of wind power stations are positioned in the plurality of parallel rows forming a wind power station park.
• the rows are positioned perpendicularly to the predominant wind direction of the site, where the predominant wind direction is the direction in which the wind most often blows .
• the wind power stations are positioned in rows with a relative distance of about 75-500 meters, preferably 200-250 meters.
• the rows are positioned with a distance of about 75-500 meters, preferably 200-250 meters.
• wind power parks need some kind of storage capacity for surplus energy. This can be solved, environmentally sound, in several ways and/or combinations thereof . Four such possibilities are described below.
• Excess energy in the wind power park can be used to produce hydrogen gas by electrolysis of water. Residual products will be pure oxygen gas, which can be sold for many different purposes.
• the hydrogen gas can be stored in liquid state, united with metal to a metal hybrid during very low temperatures in heat-isolated tanks. Alternatively, it could be compressed and stored under high pressure in pressure tanks .
• Excess energy in the wind power park may store water in the form of potential energy. Water can be pumped up in large land or sea basins, and electric energy will be released when water is released back and produces electricity by regular water turbines. However, this type of storage requires a relatively large ground area, but is otherwise very environmental.
• Excess energy in the wind power park can be utilized to store the electric energy as heating energy by heating water in for instance large water tanks/basins in connection to district-heating networks. Heating energy is released during need, via heat exchangers, on the district-heating networks.
• tap warm water can be produced in this way.

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• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Wind Motors (AREA)

Applications Claiming Priority (4)

Publications (1)

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Country Status (2)

Cited By (5)

Citations (8)

• 2004
  • 2004-02-26 SE SE0400458A patent/SE526063C2/sv unknown
  • 2004-07-09 WO PCT/SE2004/001122 patent/WO2005008062A1/en active Application Filing

Patent Citations (8)

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