WO2024084527A1 - System for the generation of energy through the exploitation of wind at an altitude - Google Patents

System for the generation of energy through the exploitation of wind at an altitude Download PDF

Info

Publication number
WO2024084527A1
WO2024084527A1 PCT/IT2023/050229 IT2023050229W WO2024084527A1 WO 2024084527 A1 WO2024084527 A1 WO 2024084527A1 IT 2023050229 W IT2023050229 W IT 2023050229W WO 2024084527 A1 WO2024084527 A1 WO 2024084527A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
constraint element
wind
designed
altitude
Prior art date
Application number
PCT/IT2023/050229
Other languages
French (fr)
Inventor
Giovanni Vergnano
Original Assignee
Windtime S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windtime S.R.L. filed Critical Windtime S.R.L.
Publication of WO2024084527A1 publication Critical patent/WO2024084527A1/en

Links

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
    • F03D7/00—Controlling wind motors 
    • F03D7/051—Controlling wind motors  the wind motors being supported in air by airborne structures; of the tethered aircraft type
    • 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
    • F03D5/00—Other wind motors
    • F03D5/015—Other wind motors of the tethered aircraft type, e.g. kites, with traction and retraction of the tether
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/917—Mounting on supporting structures or systems on a stationary structure attached to cables
    • F05B2240/9172—Mounting on supporting structures or systems on a stationary structure attached to cables of kite type with traction and retraction
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/92—Mounting on supporting structures or systems on an airbourne structure
    • F05B2240/921—Mounting on supporting structures or systems on an airbourne structure kept aloft due to aerodynamic effects

Definitions

  • the present invention refers to an improved system for generating energy by exploiting wind at an altitude using rotor devices .
  • Rotors for the generation of electrical energy similar to the one described in the present invention and its generation cycle are not known in the art .
  • Obj ect of the present invention is solving the aforementioned prior art problems of energy generation by providing an improved system capable of determining a li ft higher than gravity and of alternating cycles of elevation to an altitude with recovery cycles through the use of cables that allow the rotor constraint point and the consequent flight attitude to be modi fied .
  • FIG. 1 shows a schematic side view of an embodiment of the system of the present invention
  • FIG. 2 shows a schematic side view of an implementation of the improved system with a rotor rising to an altitude for energy production
  • Figure 3 shows the movement of the constraint element or point which determines a di f ferent flight attitude according to the present invention .
  • the improved system 1 for the generation of energy through the exploitation of wind at an altitude of the present invention includes at least one generator 12 placed on the ground and operationally connected to at least one device 7 for the collection of energy through at least one constraint element or point 9 designed to transmit energy in the form of mechanical traction from the device 7 to the generator 12 .
  • the device 7 is usually a rotor designed for the conversion of wind energy at an altitude through rotation of wing profiles and consequent li ft which determines a traction force having an intermediate direction between the wind axis and the vertical to the ground .
  • the system is equipped with at least three cables 20 ; 22 , 24 which connect the device 7 and the constraint element 9 to each other : these cables 20 ; 22 , 24 are designed to determine a movement of the constraint element 9 with respect to the system 1 through their lengthening/ shortening, a function which, depending on the solutions adopted, can be obtained with other simple measures always aimed at modi fying the constraint point which is an essential element for flight control ( in the twinrotor a sliding of the attachment point is suf ficient ) .
  • flight control occurs by moving the mobile constraint element 9 which can be implemented by the action of the cables 20 ; 22 , 24 or through the action of mechanical actuators .
  • the movement of the constraint element 9 along the longitudinal axis from the point of cable 20 to the point of cable 22 determines a di f ferent flight attitude of the system 1 .
  • Changing the position of the constraint element 9 is important to determine the behaviour of the rotor device 7 , which must alternate traction steps on the constraint cable to the generator 12 placed on the ground with fast recovery steps .
  • the device 7 is a single rotor, it is also necessary to compensate for the li ft asymmetry of the rotor 7 which, on one of its sides , has a greater ef ficiency since its blades move against the wind due to the rotation ef fect .
  • a commercially available inertial platform allows veri fying and maintaining a correct flight attitude of the device 7 even i f its rotor disk has li ft asymmetries typical of rotors : therefore , it is essential that the movement of the constraint element 9 is also possible laterally .
  • the generator 12 is designed to be driven by at least one cable reel 11 suitable for allowing the production of energy .
  • the invention also relates to a process for the generation of energy through the exploitation of the wind at a altitude using the system 1 described above , in which the process comprises the steps of :

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (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)
  • Wind Motors (AREA)

Abstract

An improved system (1) for the generation of energy through the exploitation of wind at an altitude is described, comprising at least one generator (12) placed on the ground and operationally connected to at least one device (7) for the collection of energy through at least one constraint element (9) designed for the transfer of mechanical energy generated as traction from the device (7) to the generator (12), the device (7) being a rotor designed for the conversion of wind energy at an altitude with force traction having an intermediate direction between the wind axis and the vertical to the ground; the system (1) is also equipped with means (20; 22, 24) designed to modify the position of the constraint element (9) for flight control.

Description

SYSTEM FOR THE GENERATION OF ENERGY THROUGH THE
EXPLOITATION OF WIND AT AN ALTITUDE
The present invention refers to an improved system for generating energy by exploiting wind at an altitude using rotor devices .
Rotors for the generation of electrical energy similar to the one described in the present invention and its generation cycle are not known in the art .
Obj ect of the present invention is solving the aforementioned prior art problems of energy generation by providing an improved system capable of determining a li ft higher than gravity and of alternating cycles of elevation to an altitude with recovery cycles through the use of cables that allow the rotor constraint point and the consequent flight attitude to be modi fied .
The above and other obj ects and advantages of the invention, as will appear from the following description, are achieved with an improved system such as that described in claim 1 . Preferred embodiments and non-trivial variations of the present invention form the subj ect matter of the dependent claims .
It is understood that all attached claims form an integral part of the present description .
It will be immediately obvious that countless variations and modi fications can be made to what i s described ( for example relating to shape , dimensions , arrangements and parts with equivalent functionality) without departing from the scope of the invention as appears from the attached claims .
The present invention will be better described by some preferred embodiments thereof , provided as a non-limiting example , with reference to the enclosed drawings , in which :
- Figure 1 shows a schematic side view of an embodiment of the system of the present invention;
- Figure 2 shows a schematic side view of an implementation of the improved system with a rotor rising to an altitude for energy production; and
Figure 3 shows the movement of the constraint element or point which determines a di f ferent flight attitude according to the present invention .
Referring to the Figures , the improved system 1 for the generation of energy through the exploitation of wind at an altitude of the present invention includes at least one generator 12 placed on the ground and operationally connected to at least one device 7 for the collection of energy through at least one constraint element or point 9 designed to transmit energy in the form of mechanical traction from the device 7 to the generator 12 .
The device 7 is usually a rotor designed for the conversion of wind energy at an altitude through rotation of wing profiles and consequent li ft which determines a traction force having an intermediate direction between the wind axis and the vertical to the ground .
For controlling its flight , the system is equipped with at least three cables 20 ; 22 , 24 which connect the device 7 and the constraint element 9 to each other : these cables 20 ; 22 , 24 are designed to determine a movement of the constraint element 9 with respect to the system 1 through their lengthening/ shortening, a function which, depending on the solutions adopted, can be obtained with other simple measures always aimed at modi fying the constraint point which is an essential element for flight control ( in the twinrotor a sliding of the attachment point is suf ficient ) .
In an innovative way, flight control occurs by moving the mobile constraint element 9 which can be implemented by the action of the cables 20 ; 22 , 24 or through the action of mechanical actuators .
The movement of the constraint element 9 along the longitudinal axis from the point of cable 20 to the point of cable 22 determines a di f ferent flight attitude of the system 1 .
Changing the position of the constraint element 9 is important to determine the behaviour of the rotor device 7 , which must alternate traction steps on the constraint cable to the generator 12 placed on the ground with fast recovery steps .
Furthermore , in the event that the device 7 is a single rotor, it is also necessary to compensate for the li ft asymmetry of the rotor 7 which, on one of its sides , has a greater ef ficiency since its blades move against the wind due to the rotation ef fect .
A commercially available inertial platform allows veri fying and maintaining a correct flight attitude of the device 7 even i f its rotor disk has li ft asymmetries typical of rotors : therefore , it is essential that the movement of the constraint element 9 is also possible laterally .
Preferably, the generator 12 is designed to be driven by at least one cable reel 11 suitable for allowing the production of energy .
The invention also relates to a process for the generation of energy through the exploitation of the wind at a altitude using the system 1 described above , in which the process comprises the steps of :
- achieving the maximum expected operating quota o f the system 1 ;
- alternating short return steps to the cycle start level of the device 7 , with low energy expenditure ; returning to the initial altitude of the generation cycle due to a change in flight attitude determined by the movement of the constraint element 9 and any modi fication of the aerodynamic surfaces .

Claims

1. Improved system (1) for the generation of energy through the exploitation of wind at an altitude comprising at least one generator (12) placed on the ground and operationally connected to at least one device (7) for collecting energy through at least one constraint element (9) designed for a transfer of mechanical energy generated as traction from said device (7) to said generator (12) , said device (7) being a rotor designed for the conversion of wind energy at an altitude with a traction force having an intermediate direction between a wind axis and a vertical to the ground, wherein said system (1) is also equipped with means (20; 22, 24) designed to modify a position of the constraint element (9) for a flight control, said means (20; 22, 24) being composed of at least three cables (20; 22, 24) which connect together said device (7) and said constraint element (9) , said cables (20; 22, 24) being designed to determine a movement of said constraint element (9) with respect to said system (1) through their lengthening/shortening, the flight control taking place by displacement of the mobile constraint element (9) implemented by the action of said cables (20; 22, 24) , the movement of the constraint element (9) along a longitudinal axis from a cable point (20) to another cable point (22) determining a different flight attitude of the system (1) , a modification of the position of the constraint element (9) being important for determining the behaviour of the rotor device (7) , which must alternate traction steps on the constraint cable to the generator (12) placed on the ground with fast recovery steps.
2. System (1) according to claim 1, characterized in that, in case the device (7) is a single rotor, the system (1) is designed to compensate for the lift asymmetry of the rotor (7) which, on one side, has greater efficiency since its blades, due to the rotation, move against the wind .
3. System (1) according to claim 1 or 2, characterized in that the flight control occurs by moving the mobile constraint element (9) and is implemented through the action of mechanical actuators .
4. System (1) according to claim 1, 2 or 3, characterized in that said generator (12) is designed to be operated by at least one cable reel (11) suitable for allowing the production of energy .
5. Process for the generation of energy by exploiting wind at an altitude using the system (1) according to any of the previous claims, said process comprising the steps of:
- reaching a maximum expected operating quota of the system (1) ;
- alternating short return steps to the device cycle start level (7) , with low energy expenditure; returning to an initial altitude of the generation cycle due to a change in flight attitude determined by a movement of the constraint element (9) and any modification of the aerodynamic surfaces.
PCT/IT2023/050229 2022-10-18 2023-10-12 System for the generation of energy through the exploitation of wind at an altitude WO2024084527A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102022000021444 2022-10-18
IT202200021444 2022-10-18

Publications (1)

Publication Number Publication Date
WO2024084527A1 true WO2024084527A1 (en) 2024-04-25

Family

ID=84943688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2023/050229 WO2024084527A1 (en) 2022-10-18 2023-10-12 System for the generation of energy through the exploitation of wind at an altitude

Country Status (1)

Country Link
WO (1) WO2024084527A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034193A2 (en) * 2005-09-22 2007-03-29 Kit Nicholson Kite power generator
US20070228738A1 (en) * 2006-03-31 2007-10-04 Skysails Gmbh & Co. Kg Wind energy plant with a steerable kite
US20150330368A1 (en) * 2014-05-18 2015-11-19 Leonid Goldstein Airborne wind energy system with rotary wing, flying generator and optional multi-leg tether

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034193A2 (en) * 2005-09-22 2007-03-29 Kit Nicholson Kite power generator
US20070228738A1 (en) * 2006-03-31 2007-10-04 Skysails Gmbh & Co. Kg Wind energy plant with a steerable kite
US20150330368A1 (en) * 2014-05-18 2015-11-19 Leonid Goldstein Airborne wind energy system with rotary wing, flying generator and optional multi-leg tether

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