WO2016157080A1 - Appareil d'entraînement pour un alternateur électrique - Google Patents

Appareil d'entraînement pour un alternateur électrique Download PDF

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Publication number
WO2016157080A1
WO2016157080A1 PCT/IB2016/051769 IB2016051769W WO2016157080A1 WO 2016157080 A1 WO2016157080 A1 WO 2016157080A1 IB 2016051769 W IB2016051769 W IB 2016051769W WO 2016157080 A1 WO2016157080 A1 WO 2016157080A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive shaft
driving apparatus
outer casing
rotor
previous
Prior art date
Application number
PCT/IB2016/051769
Other languages
English (en)
Inventor
Giancarlo GRESTI
Original Assignee
Future Project Energy 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 Future Project Energy S.R.L. filed Critical Future Project Energy S.R.L.
Publication of WO2016157080A1 publication Critical patent/WO2016157080A1/fr

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
    • 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
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • 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
    • F03D9/12—Combinations of wind motors with apparatus storing energy storing kinetic energy, e.g. using flywheels
    • 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
    • F05B2260/00—Function
    • F05B2260/85—Starting
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • 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 relates to a driving apparatus for an electric alternator.
  • Such a driving apparatus can be used in any type of device, machine or plant in which it is foreseen to use an electric alternator.
  • vertical axis mini wind turbines plant is used to indicate a plant for generating electrical energy from wind energy through vertical axis mini wind turbines.
  • Such vertical axis mini wind turbines are typically installed on roofs of private homes, condominiums and real estate in general, which can thus directly use the electrical energy produced through the vertical axis mini wind turbines.
  • the technical problem at the basis of the present invention is to provide a driving apparatus that allows overcoming the drawbacks discussed above with reference to the wind vanes.
  • the present invention therefore relates, in a first aspect thereof, to a driving apparatus according to claim 1.
  • the invention relates to a driving apparatus for an electric alternator, for example an electric alternator of a vertical axis mini wind turbines plant, characterised in that the driving apparatus comprises an outer casing and, inside said outer casing :
  • stator associated with said outer casing at said rotor and comprising a plurality of second magnets arranged according to said geometric configuration and having the same magnetic polarity as said first magnets;
  • said driving apparatus further comprising :
  • a cyclical timer operatively associated with said electromagnetic motor
  • cyclical timer and said activation device are operatively associated with a battery pack comprising at least one battery which is at least partially charged.
  • the main advantage of the driving apparatus according to the present invention consists of its low bulk, in particular its low height and width, which allows it to be used even in condominiums and/or private homes without suitable or adequate space for the installation of wind vanes.
  • the driving apparatus according to the present invention can be used to replace vertical axis mini wind turbines .
  • the electric alternator is in this case powered not by the action of the wind on the wind vanes, but by the rotation of a drive shaft set in motion by an electromagnetic motor and suitably kept in rotation.
  • the driving apparatus of the invention simulates to all intents and purposes the mechanical action carried out by the wind vanes.
  • the energy necessary for the activation of the electromagnetic motor is provided by the batteries of the battery pack, which initially are at least partially charged and which remain in an at least partially charged state thanks to the recharging effect obtained during the use of the apparatus.
  • the motion is maintained through the effect of the magnetic repulsion action exerted by the rotor-stator assembly and the flywheel and by a periodic acceleration provided by the cyclical timer to the electromagnetic motor.
  • the driving apparatus according to the present invention can also be used in addition to small-sized vertical axis mini wind turbines .
  • the driving apparatus of the invention assists the mechanical action carried out by the wind vanes, allowing the use of much smaller wind vanes with respect to those typical or in any case necessary in the absence of the driving apparatus of the invention.
  • said cyclical timer and said activation device are associated with a control panel arranged outside said outer casing.
  • the control panel is easily accessible for the user, who intervenes on the activation device to activate the cyclical timer, which in turn activates the electromagnetic motor and consequently the rotation of the drive shaft.
  • said activation device is a two-way switch.
  • the battery pack can be the battery pack of a vertical axis mini wind turbines plant or a conventional battery pack of suitable power.
  • said first and second magnets are arranged according to a spiral configuration .
  • said electromagnetic motor, said rotor, said flywheel and said motion transmission element are arranged one after the other along said drive shaft.
  • said drive shaft is associated with said outer casing through a pair of bearings associated with said drive shaft each at one of the opposite free end portions of the drive shaft.
  • the aforementioned bearings are hybrid bearings made of silicon nitride. The use of such a particular type of bearings allows effective thermal and mechanical insulation (i.e. reduction of vibrations and/or oscillations) between drive shaft and outer casing.
  • said rotor and said stator are made from carbon fibre, so as to reduce the weight and the transmission of vibrations.
  • said drive shaft is oriented along a vertical axis inside said outer casing.
  • stator is associated with said outer casing through a locking device made from carbon fibre, so as to reduce the weight and the transmission of vibrations from the stator to the outer casing.
  • FIG. 1 schematically shows a perspective view of a driving apparatus for an electric alternator according to the present invention .
  • a driving apparatus is indicated with A.
  • the apparatus A comprises an outer casing 1 having a substantially tubular (essentially cylindrical) shape, preferably made from ultra-light aluminium, the measurements of which can vary based on the required electrical power.
  • the outer casing 1 can be painted based on the place of installation or the preferences of the end customer.
  • the outer casing 1 has a longitudinal axis X arranged vertically.
  • a drive shaft 2 is provided inside the outer casing 1.
  • the drive shaft 2 is preferably made from steel and is arranged with its axis substantially coinciding with the longitudinal axis X.
  • the drive shaft 2 is supported by the outer casing 1 through a pair of rolling bearings 3.
  • a first bearing 3 is associated with an upper free end portion 2a of the drive shaft 2 and with an upper end portion la of the outer casing 1.
  • a second bearing 3 is associated with a lower free end portion 2b of the drive shaft 2 and with a lower end portion lb of the outer casing 1.
  • the bearings 3 are hybrid bearings made from silicon nitride.
  • a number of components are arranged inside the outer casing 1 substantially aligned along the longitudinal axis X and they are associated with the drive shaft 2.
  • An electromagnetic motor 12 is associated with the upper free end portion 2a of the drive shaft 2.
  • the electromagnetic motor 12 preferably operates at a voltage of 12 volts.
  • the electromagnetic motor 12 comprises a rotor 5 installed directly on the drive shaft 2 and a stator 4 locked to the outer casing 1 through a locking device 6, preferably made from carbon fibre.
  • a rotor 7 is provided, which is associated with the drive shaft 2 as well and which is preferably made from carbon fibre. Such a rotor 7 is empty on the inside so as to be lighter.
  • the rotor 7 rotates inside a stator 8, which is preferably made from carbon fibre as well .
  • the stator 8 is associated with the outer casing 1.
  • the rotor 7 and the stator 8 each comprise a plurality of permanent magnets which are arranged according to the same geometric configuration and have the same magnetic polarity.
  • the aforementioned permanent magnets are arranged according to a spiral configuration.
  • the geometric configuration of the permanent magnets can change based on the size of the rotor 7 and of the stator 8.
  • a flywheel 9 is provided, which is associated with the drive shaft 2 as well.
  • the flywheel 9 is calibrated on the basis of the size of the rotor 7 and stator 8.
  • a motion transmission element 10 is associated with the lower free end portion 2b of the drive shaft 2 so as to rotate as a unit with the drive shaft 2.
  • the motion transmission element 10 is configured to be connected to the shaft of the electric alternator (not shown) so as to set such a shaft in rotation .
  • the motion transmission element 10 is accessible through a suitable door 14 provided at the lower end portion lb of the outer casing 1.
  • the motion transmission element 10 can for example be a transmission plate, preferably made from aluminium, screwed to the drive shaft 2 and which is intended to be fixed to a plate screwed to the shaft of the electric alternator.
  • the outer casing 1 comprises, at a lower free end thereof, a perforated crown 13 to be fixed to the electric alternator through bolts or analogous fixing devices.
  • the apparatus A also comprises a control panel 11 arranged outside the outer casing 1.
  • the control panel 11 comprises control means for controlling the electromagnetic motor 12.
  • Such control means in particular comprise a cyclical timer 111 and an activation device 112 of the cyclical timer 111.
  • the activation device 112 is preferably a two-way switch.
  • the two-way switch 112 and the cyclical timer 111 operate at a voltage of 12 volts.
  • the user starts the cyclical timer 111 through the two-way switch 112.
  • the cyclical timer 111 takes voltage from a battery pack 150 that is kept in a constantly charged state through a charge regulator (of the type typically used in wind plants).
  • a charge regulator of the type typically used in wind plants.
  • the batteries of the battery pack 150 supply voltage that derives from the fact that they are at least partially charged.
  • the cyclical timer 111 starts the electromagnetic motor 12 for a predetermined time cyclically, for example for 8 seconds every 30 minutes, to then deactivate.
  • the electromagnetic motor 12 sets the drive shaft 2 and, consequently, the rotor 7 in rotation.
  • the operating steps described above are repeated periodically, thus obtaining a continuous rotation of the drive shaft 2 and, consequently, continuous powering of the electric alternator.
  • the flywheel 9 keeps the inertia of the motion of the drive shaft 2 stable.
  • the apparatus A does not achieve continuous motion from nothing. Indeed, voltage is initially and periodically put into the apparatus A by the battery pack 150, which is constantly charged due to the fact that during operation a minimal part of the electrical energy generated by the electric alternator is used to recharge the batteries of the battery pack 150.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power 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

Cette invention concerne un appareil d'entraînement (A) pour un alternateur électrique, en particulier un alternateur électrique d'un parc d'éoliennes miniature à axe vertical. Ledit appareil (A) comprend un boîtier extérieur (1) et, à l'intérieur dudit boîtier extérieur (1) : un arbre d'entraînement (2) ; un moteur électromagnétique (12) associé audit arbre d'entraînement (2) ; un rotor (7) associé audit arbre d'entraînement (2) et comprenant une pluralité de premiers aimants agencés selon une configuration géométrique prédéterminée ; un stator (8) associé audit boîtier externe (1) au niveau dudit rotor (7) et comprenant une pluralité de seconds aimants agencés selon ladite configuration géométrique et présentant la même polarité magnétique que lesdits premiers aimants ; un volant d'inertie (9) associé audit arbre d'entraînement (2) ; un élément de transmission de mouvement (10) associé à une partie d'extrémité libre (2b) dudit arbre d'entraînement (2) et configuré pour être relié à un arbre d'entraînement dudit alternateur électrique. Ledit appareil d'entraînement (A) comprend en outre un temporisateur cyclique (111) fonctionnellement associé audit moteur électromagnétique (12) et un dispositif d'activation (112) pour activer ledit temporisateur cyclique (111). Le temporisateur cyclique (111) et le dispositif d'activation (112) sont fonctionnellement associés à un bloc-batterie (150) comprenant au moins une batterie qui est au moins partiellement chargée.
PCT/IB2016/051769 2015-03-31 2016-03-29 Appareil d'entraînement pour un alternateur électrique WO2016157080A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPA20150005 2015-03-31
ITPA2015A000005 2015-03-31

Publications (1)

Publication Number Publication Date
WO2016157080A1 true WO2016157080A1 (fr) 2016-10-06

Family

ID=53539807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/051769 WO2016157080A1 (fr) 2015-03-31 2016-03-29 Appareil d'entraînement pour un alternateur électrique

Country Status (1)

Country Link
WO (1) WO2016157080A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010083590A1 (fr) * 2009-01-22 2010-07-29 Howard Harrison Système générateur modulaire pour éolienne
GB2473736A (en) * 2009-09-21 2011-03-23 Univ Cranfield Provision of electricity using a wind turbine and a fuel consuming generator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010083590A1 (fr) * 2009-01-22 2010-07-29 Howard Harrison Système générateur modulaire pour éolienne
GB2473736A (en) * 2009-09-21 2011-03-23 Univ Cranfield Provision of electricity using a wind turbine and a fuel consuming generator

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