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WO2015181841A1 - Appareil pour la conversion d'énergie mécanique en énergie électrique - Google Patents

Appareil pour la conversion d'énergie mécanique en énergie électrique Download PDF

Info

Publication number
WO2015181841A1
WO2015181841A1 PCT/IT2015/000057 IT2015000057W WO2015181841A1 WO 2015181841 A1 WO2015181841 A1 WO 2015181841A1 IT 2015000057 W IT2015000057 W IT 2015000057W WO 2015181841 A1 WO2015181841 A1 WO 2015181841A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric energy
rotors
pair
rotor
hub
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IT2015/000057
Other languages
English (en)
Inventor
Massimo IPPOUTO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kite Gen Research SRL
Original Assignee
Kite Gen Research SRL
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 Kite Gen Research SRL filed Critical Kite Gen Research SRL
Publication of WO2015181841A1 publication Critical patent/WO2015181841A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
    • H02K7/1008—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys structurally associated with the machine rotor
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1853—Rotary generators driven by intermittent forces
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1892—Generators with parts oscillating or vibrating about an axis
    • 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

Definitions

  • the present invention deals with an apparatus for converting mechanical energy into electric energy, in particular of the type in which the mechanical energy is transmitted by means of traction forces applied to tethers connected to a moving load through a winch.
  • winches for transmitting energy has become important in the field of managing wind energy, in which winches connected to alternators and electronic power apparatuses are used to extract the wind kinetic energy and to convert the produced mechanical energy into electric energy.
  • the pulley or the drum onto which a tether is wound rotates due to the unwinding force induced by such tether.
  • the wind kinetic energy is first of all converted into mechanical energy, due to the friction effect between tether and contact surface of the pulley or the drum, and is then converted into electric energy through alternators connected to such winch.
  • An apparatus for converting mechanical energy into electric energy comprises a drum belonging to a winch connected to a motored pulley adapted to rotate with respect to a fixed axis. At least one tether is wound by about of a revolution onto such motored pulley, transmitting a mechanical load onto the drum adapted to translate along its own rotation axis to allow winding several coils of such tether. The unwinding of the tether with respect to the pulley allows accumulating electric energy through a stator-rotor motor connected to the pulley adapted also to dampen the axial force acting on the winch.
  • the pulley behaves as an idle wheel.
  • Object of the present invention is providing an apparatus for converting mechanical energy into electric energy capable of combining different solutions for increasing the energetic efficiency.
  • a further object is providing an apparatus for converting mechanical energy into electric energy, wherein the drum belonging to the winch is subjected to a lower load due to the dampening effect induced by the motored pulley.
  • a further object is providing a motored pulley in contact with air, allowing a self-cooling action due to the absence of an external liner on the stator-rotor motor, favouring a greater energy production and a reduction of power losses due to friction phenomena, and enabling a reduced wear of the tethers.
  • FIG. 1 shows an axonometric view of an embodiment of the apparatus for converting mechanical energy into electric energy according to the present invention
  • FIG. 2 shows an axonometric view of an embodiment of a stator belonging to the apparatus of the previous Figure
  • FIG. 3 shows an axonometric view of an embodiment of a rotor generator belonging to the apparatus of Figure 1;
  • Figure 4 shows a front projection view of the apparatus of Figure 1;
  • Figure 6 shows an enlarged partially sectioned view along a portion VI of the previous Figure
  • FIG. 7 shows a front projection view of the stator of Figure 2;
  • Figure 9 shows an enlarged partially sectioned view along a portion IX of the previous Figure
  • FIG. 10 shows a front projection view of the rotor generator of Figure 3;
  • an apparatus 1 for converting mechanical energy into electric energy comprises at least one stator-type generator composed of a pair of stators 10 and at least one rotor-type generator composed of a pair of rotors 20 connected to a hub 30; such pair of stators 10 is placed inside the respective pair of rotors 20, while the stator-type generator and the rotor-type generator form an electric motor.
  • the hub 30 carries at least one pulley in contact with at least one section of tether, wherein the section of tether has an inlet section connected to a working load and an outlet section connected to a resisting load, and wherein the rotor-type generator adapted to coaxially rotate outside the stator-type generator is supported by a single sliding support 40.
  • the peculiarity of the inventive apparatus 1 are :
  • the apparatus 1 is a wind generator based on power wing profiles, or kites (not shown) , operating based on the alternate winding / unwinding of two tethers which connect each of the kites to one of the stator-type generators and of the rotor-type generators;
  • the two tethers are wound around a respective pulley of the hub 30, and the pulleys are composed of a winding drum of a winch, the pulleys being directly guided by the two electric motors of the stators 10-rotors 20 type, the rotors 20 being integrated with every pulley;
  • the sections of the electric motors are independently guided one from the other by multiple supplies (not shown) , which operate as motors or generators;
  • the single bearing 40 supports both axial and radial loads of both pulleys
  • each stator of the pair of stators 10 comprises an internal carrier cylinder 11 fastened to an internal ring 41.
  • Each rotor of the pair of rotors 20 comprises an external carrier cylinder 21 fastened to an external ring 42 through the hub 30.
  • the internal ring 41 and the external ring 42 belong to the single sliding rotary support 40.
  • the hub 30 is composed of a pair of flanges 31.
  • Each of the flanges 31 comprises a coaxial annular groove 32 adapted to house and block a magnetic ring (not shown) .
  • the internal carrier cylinder 11 comprises a bracket (not shown) projecting from a radial hole 12.
  • the bracket allows supporting and blocking an encoder (not shown) adapted to interact with the magnetic ring.
  • the single sliding support 40 is a ball bearing with four points with slanted contact.
  • the apparatus for converting mechanical energy into electric energy 1 does not comprise any type of external covering.
  • the apparatus for converting mechanical energy into electric energy 1 is made with a symmetrical shape with respect to the sliding support 40

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un générateur éolien fonctionnant avec une voilure ou un cerf-volant qui comprend deux générateurs à moteur électrique du type rotor externe commandés indépendamment qui sont alignés axialement sur un support central unique, chaque rotor portant une poulie-treuil en contact avec une longueur d'un câble d'attache retenant la voilure ou le cerf-volant; les deux rotors et poulies sont coaxialement couplés à un unique moyeu (30) qui est lui-même (30) soutenu et tourillonné par un palier central unique (40) entre les deux rotors.
PCT/IT2015/000057 2014-05-28 2015-03-05 Appareil pour la conversion d'énergie mécanique en énergie électrique Ceased WO2015181841A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO20140424 2014-05-28
ITTO2014A000424 2014-05-28

Publications (1)

Publication Number Publication Date
WO2015181841A1 true WO2015181841A1 (fr) 2015-12-03

Family

ID=51663351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2015/000057 Ceased WO2015181841A1 (fr) 2014-05-28 2015-03-05 Appareil pour la conversion d'énergie mécanique en énergie électrique

Country Status (1)

Country Link
WO (1) WO2015181841A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL447865A1 (pl) * 2024-02-27 2025-09-01 Instytut Mechaniki Górotworu Polskiej Akademii Nauk Zbieracz energii

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5898988A (en) 1995-12-14 1999-05-04 Siemens Electric Ltd. Method of making a brushless motor with inside mounted single bearing
EP1178007A1 (fr) 2000-08-02 2002-02-06 Schlumberger Technology B.V. Treuil avec 2 tambours coaxiaux pour diagraphie de puits
EP1220426A2 (fr) 2000-12-27 2002-07-03 Mitsubishi Denki Kabushiki Kaisha Dispositif électro-mécanique rotatif et système d'entraínement par poulie l'utilisant
EP1475340A1 (fr) 2003-03-11 2004-11-10 Rieter CZ a.s. Dispositif d'entraínement individuel d'une piece tournante pour le transport ou le bobbinage d'une matière textile dans une unité d'opération d'une machine textile
WO2007122650A1 (fr) * 2006-04-24 2007-11-01 Kite Gen Research S.R.L. Système éolien comprenant des profils d'ailes moteur et méthode pour produire de l'énergie électrique
US20090284104A1 (en) 2006-03-31 2009-11-19 Siemens Aktiengesellschaft Built-in motor, in particular a built-in torque motor
WO2009147692A2 (fr) * 2008-06-04 2009-12-10 Massimo Ippolito Infrastructure d'entraînement et de mise en mouvement assistée de capteurs pour générateur éolien troposphérique
CN201918837U (zh) * 2011-01-07 2011-08-03 成都精密电机厂 无端盖单支撑组装式力矩电机结构
WO2011121557A2 (fr) * 2010-03-31 2011-10-06 Kitenergy S.R.L. Systèmes d'actionnement destinés à commander le vol d'un profil d'aile de traction pour conversion de l'énergie éolienne en énergie électrique ou mécanique
WO2012005597A1 (fr) 2010-07-09 2012-01-12 Smartmotor As Machine électrique destinée à une application submergée et système de conversion d'énergie
WO2013147600A2 (fr) * 2012-03-27 2013-10-03 E-Kite Holding B.V. Système d'énergie à cerf-volant

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5898988A (en) 1995-12-14 1999-05-04 Siemens Electric Ltd. Method of making a brushless motor with inside mounted single bearing
EP1178007A1 (fr) 2000-08-02 2002-02-06 Schlumberger Technology B.V. Treuil avec 2 tambours coaxiaux pour diagraphie de puits
EP1220426A2 (fr) 2000-12-27 2002-07-03 Mitsubishi Denki Kabushiki Kaisha Dispositif électro-mécanique rotatif et système d'entraínement par poulie l'utilisant
EP1475340A1 (fr) 2003-03-11 2004-11-10 Rieter CZ a.s. Dispositif d'entraínement individuel d'une piece tournante pour le transport ou le bobbinage d'une matière textile dans une unité d'opération d'une machine textile
US20090284104A1 (en) 2006-03-31 2009-11-19 Siemens Aktiengesellschaft Built-in motor, in particular a built-in torque motor
WO2007122650A1 (fr) * 2006-04-24 2007-11-01 Kite Gen Research S.R.L. Système éolien comprenant des profils d'ailes moteur et méthode pour produire de l'énergie électrique
WO2009147692A2 (fr) * 2008-06-04 2009-12-10 Massimo Ippolito Infrastructure d'entraînement et de mise en mouvement assistée de capteurs pour générateur éolien troposphérique
WO2011121557A2 (fr) * 2010-03-31 2011-10-06 Kitenergy S.R.L. Systèmes d'actionnement destinés à commander le vol d'un profil d'aile de traction pour conversion de l'énergie éolienne en énergie électrique ou mécanique
WO2012005597A1 (fr) 2010-07-09 2012-01-12 Smartmotor As Machine électrique destinée à une application submergée et système de conversion d'énergie
CN201918837U (zh) * 2011-01-07 2011-08-03 成都精密电机厂 无端盖单支撑组装式力矩电机结构
WO2013147600A2 (fr) * 2012-03-27 2013-10-03 E-Kite Holding B.V. Système d'énergie à cerf-volant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL447865A1 (pl) * 2024-02-27 2025-09-01 Instytut Mechaniki Górotworu Polskiej Akademii Nauk Zbieracz energii

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