WO2019129049A1 - 双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机 - Google Patents

双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机 Download PDF

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Publication number
WO2019129049A1
WO2019129049A1 PCT/CN2018/123861 CN2018123861W WO2019129049A1 WO 2019129049 A1 WO2019129049 A1 WO 2019129049A1 CN 2018123861 W CN2018123861 W CN 2018123861W WO 2019129049 A1 WO2019129049 A1 WO 2019129049A1
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WO
WIPO (PCT)
Prior art keywords
impeller
rotor
shaft
rotating shaft
generator
Prior art date
Application number
PCT/CN2018/123861
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English (en)
French (fr)
Inventor
胡国祥
吕峰
Original Assignee
胡国祥
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Publication date
Application filed by 胡国祥 filed Critical 胡国祥
Publication of WO2019129049A1 publication Critical patent/WO2019129049A1/zh

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    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/02—Wind motors with rotation axis substantially perpendicular 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
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/003—Structural associations of slip-rings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/005—Machines with only rotors, e.g. counter-rotating rotors
    • 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
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the 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 relates to a wind power generator, and more particularly to a vertical axis wind power generator constructed by constructing two independently counter-rotating impellers along the same axis.
  • Vertical-axis wind turbines can still start generating electricity at low wind speeds. This feature makes vertical-axis wind turbines still perform well in many wind farm resources. Vertical wind turbines are especially suitable for wind farms with wind speeds below 8 m/s for most of the year. For a lower wind speed, how to obtain a larger ⁇ value (the ⁇ value is the ratio of the linear velocity at the blade tip or the edge of the wind turbine to the wind speed). Perfecting the blade design is a technical approach, but it should not be the only technology. way.
  • the object of the present invention is to provide a ⁇ value obtained by using two independent reverse-rotating impellers to obtain a superimposed effect of the fan, and the double impeller is combined with the double-rotor generator to increase the linear velocity between the two rotors of the generator, thereby Lower wind speed wind energy can also be fully utilized for power generation.
  • the technical solution of the present invention is a vertical axis wind power generator in which a double impeller is reversely rotated and constructed along the same axis, and the utility model is composed of a fan base, an impeller, a generator, and a control device.
  • the two impellers are disposed, the two impellers are disposed above and below the coaxial line, and the generator is disposed between the upper impeller and the lower impeller.
  • the generator is composed of an inner shaft rotor and a outer casing rotor, and the inner shaft rotor and the outer casing rotor There is a reinforced bearing between them, the upper impeller rotation shaft is fixedly connected with the inner shaft rotor, the lower impeller rotation shaft is fixedly connected with the outer casing rotor, the upper impeller and the lower impeller rotate in different directions, and the inner shaft rotor or the outer casing rotor induction coil or excitation coil
  • the electrical slip ring device is electrically connected to a terminal fixed to the fan base.
  • the electric slip ring device is composed of a cylindrical rotating member, a conductive ring, a conductive brush, a compression spring and a wire
  • the cylindrical rotating member is fixedly connected with the rotating shaft of the lower impeller, and a plurality of conductive rings
  • each conductive ring is electrically connected to the induction coil or the exciting coil in the inner rotor of the generator or the rotor of the outer casing through the wire
  • the compression spring presses the conductive brush to make each One end of the conductive brush is electrically connected in sliding contact with each of the conductive rings, and the other end of each conductive brush is electrically connected to the terminal via a wire.
  • the upper impeller is a lift type impeller, or a resistance type impeller, or a lift-resistance complementary type impeller
  • the lower impeller is a lift type impeller, or a resistance type impeller, or a lift-resistance complementary type impeller
  • the outer casing rotor is provided with an induction coil, the inner shaft rotor is provided with a permanent magnet; or the outer casing rotor is provided with a permanent magnet, the inner shaft rotor is provided with an induction coil; or the outer casing rotor is provided with a core And the excitation coil and the inner shaft rotor are provided with an induction coil; or the inner shaft rotor is provided with an induction coil, the outer casing rotor is provided with a core and an excitation coil, or the outer casing rotor is provided with a plurality of salient pole cores and an induction coil,
  • the shaft rotor is a multi-salient magnet.
  • the upper impeller and the lower impeller are both lift-resistance complementary impellers
  • the generator is disposed between the upper impeller and the lower impeller
  • the lower end of the upper impeller rotating shaft is fixed by the flange and the generator inner shaft rotor.
  • the upper end of the lower impeller rotating shaft is fixedly connected to the generator housing rotor through the flange
  • the lower impeller rotating shaft is inserted into the sleeve of the fan base
  • a pair of tapers are arranged between the lower impeller rotating shaft and the fan base.
  • the lower end of the lower shaft of the lower impeller is locked by a nut, so that the lower part of the lower impeller shaft can be freely rotated in the sleeve of the fan base, and the cylindrical rotating part of the electric slip ring device is passed through a spiral or through
  • the coupling is fixedly connected with the lower end portion of the lower impeller rotating shaft, the generator inner shaft rotor is embedded with a permanent magnet, the generator housing rotor is embedded with a core and an induction coil, and the outer casing rotor induction coil passes through the lower impeller shaft.
  • the lift-resistance complementary impeller is composed of a rotating shaft, a fixed bracket, a lift type blade and a spiral resistance type blade, the inner end of the fixed bracket is fixed with the rotating shaft, and the outer end of the fixed bracket is fixed with the lifting type blade.
  • the helical resistance type blade is fixed around the rotation axis.
  • the configuration further includes an electric storage device, the upper impeller is a lift type impeller, the lower impeller is a resistance type impeller, and the lower end of the upper impeller rotating shaft is fixedly connected with the generator inner shaft rotor through a flange
  • the upper end of the lower impeller rotating shaft is fixedly connected with the generator casing rotor through a flange, the lower impeller rotating shaft is inserted into the sleeve of the fan base, and a pair of tapered bearings are arranged between the lower impeller rotating shaft and the fan base.
  • the lower end of the lower impeller rotating shaft is locked by a nut, so that the lower portion of the lower impeller rotating shaft can freely rotate within the sleeve of the fan base, and the cylindrical rotating member of the electric slip ring device is screwed or passed through
  • the shaft is fixedly connected with the rotating shaft of the lower impeller, and the exciting coil of the inner shaft rotor of the generator is electrically connected to the terminal fixed to the rotor of the casing via the electric slip ring device, and the induction coil of the rotor of the generator casing is fixed to the outer casing
  • the terminals on the rotor are electrically connected, one end of the wires is connected to the terminal on the rotor of the casing, and the other end of the wire is turned through the lower impeller
  • a plurality of conductive rings form a central through hole and is electrically connected to an electrical slip ring apparatus, a plurality of conductive brush through the wire and fixed to a fan base terminal is electrically connected to said electrical storage device providing power to the field
  • the power storage device includes a battery and an intelligent control device, and the storage device is a battery, and the battery transmits the excitation current to the excitation coil of the inner shaft rotor through the electric slip ring device, and the intelligent control device Receiving the electrical signal generated by the sensor, and timely adjusting and controlling the magnitude and direction of the battery output current.
  • the lift-resistance complementary impeller is composed of a rotating shaft, a fixed bracket, a resistance blade, a lift blade and a spiral resistance blade, and the inner end of the fixing bracket is fixed to the rotating shaft, and the outer edge of the fixing bracket is fixed.
  • a resistance type blade a lift type blade is fixed in the middle of the fixed bracket, and the spiral resistance type blade is fixed around the rotating shaft.
  • the resistance type blade is not less than two, and the lift type blade is not less than two.
  • the invention has the advantages that: 1.
  • the invention provides the upper impeller and the lower impeller to rotate in the opposite direction, which can improve the comprehensive ⁇ value of the fan, and the upper and lower impellers adopt a lift type impeller, a resistance type impeller, and a lift-resistance complementary type impeller.
  • Various combinations of two and two can fully exert the wind characteristics of various impellers, and complement each other, which can not only improve the power generation efficiency under the condition of low wind speed wind field, but also effectively avoid the wind opportunity and high wind speed and stall and vulnerable situation; 2.
  • the invention has a coaxial line of the upper impeller and the lower impeller, which simplifies the structure of the fan, and the dual-rotor generator not only realizes the power generation function, but also ensures the stability of the upper impeller with respect to the upper impeller. Rotating pedestal positioning function; 3.
  • the double-rotor generator given by the invention is respectively fixed on the upper impeller and the lower impeller of the fan, and the integrated ⁇ value of the fan is converted into a larger linear velocity between the inner and outer rotors of the generator, thereby improving Power generation efficiency; 4.
  • the electric slip ring device provided by the invention has the structure suitable for the structural characteristics of the fan and the generator, is simple, convenient to assemble, and effectively solves The present invention technical problem fan induction generator excitation current input and current output of a double-rotor. 5. Expanded capacity of the electric slip ring device
  • the upper and lower impellers of the linear velocity respectively adopt the lift-resistance complementary impeller, which not only takes into consideration the requirement of the low-speed start-up rotation of the wind wheel, but also considers that the ⁇ value of the high-speed lift-type blade is large. specialty. In this way, in the low wind speed region, the fan can have higher power generation efficiency; 6.
  • the dual-rotor generator of the present invention also considers the excitation power generation mode, supplies power to the excitation coil through the power storage device, and controls and adjusts the excitation current of the power storage device.
  • the size and direction of the generator can make the generator have a stable power output, and can also have a positive impact on the rotation of the upper and lower impellers.
  • FIG. 1 is a schematic view showing the outer structure of a first embodiment of the present invention.
  • Fig. 2 is a schematic view showing the structure of the direction A in Fig. 1;
  • FIG. 3 is a schematic view showing the structure of the B-B direction of FIG. 1.
  • FIG. 4 is a schematic view showing the installation structure of the electric slip ring device in the first embodiment of the present invention.
  • Fig. 5 is a cross-sectional view showing the structure of a dual rotor generator in the first embodiment of the present invention.
  • Figure 6 is a schematic view showing the outline of the structure of the second embodiment of the present invention.
  • Fig. 7 is a schematic view showing the structure of the C-C direction and the E direction of Fig. 6.
  • FIG. 8 is a schematic structural view of an electric slip ring device according to Embodiment 2 of the present invention.
  • Figure 9 is a schematic view showing the outer structure of the third embodiment of the present invention.
  • Fig. 10 is a schematic view showing the structure of the D-D direction of Fig. 9.
  • FIG. 11 is a schematic structural view of a dual-rotor multi-salient-excitation generator in Embodiment 3 of the present invention.
  • 1 is the lift type blade of the upper lift-resistance complementary impeller
  • 2 is the radial fixed bracket of the upper lift-resistance complementary impeller
  • 3 is the rotation axis of the upper lift-resistance complementary impeller
  • 4 is the upper lift-resistance complementary Spiral resistance type vane of type impeller
  • 5 is the upper lift-resistance complementary impeller rotating shaft flange
  • 6 is the flange connecting the generator inner shaft rotor
  • 7 is the double-rotor generator
  • 8 is the lower lift-resistance complementary type Impeller rotating shaft flange
  • 9 is the fixed bracket of the lower lift-resistance complementary blade
  • 10 is the lift type blade of the lower lift-resistance complementary impeller
  • 11 is the spiral resistance type blade of the lower lift-resistance complementary impeller
  • 12 is the fan
  • the base 13 is the upper bearing
  • 14 is the downward extension of the lower lift resistance complementary impeller rotation shaft
  • 15 is the conical lower bearing
  • the downward extension of the impeller rotation shaft, 61 is a cylindrical rotating member, 62 is a threaded interface, 63 is a flange interface, 64 is a terminal fixing bracket, 65 terminal, 66 is a compression spring, 67 is a brush, 68 It is an electric slip ring.
  • 70 is the rotating shaft
  • 71 is the radial fixed bracket of the upper "resistance-resistance complementary” impeller
  • 72 is the lift type blade of the upper "resistance-resistance complementary” impeller
  • 73 is the center of the upper "resistance-resistance complementary” impeller
  • the spiral resistance type blade, 74 is the resistance type blade on the outer edge of the upper "resistance-resistance-resistance type” impeller
  • 75 is the double-rotor double salient-excitation generator
  • 76 is the radial direction of the lower "resistance-resistance complementary” impeller
  • the fixed bracket, 77 is the lift type blade of the lower "resistance-resistance complementary” impeller
  • 78 is the spiral resistance type blade at the center of the lower "resistance-resistance-resistance type” impeller
  • 79 is the lower "resistance-resistance-resistance type
  • the edge of the resistance blade, 80 is the fan base, 81 is the outer rotor multi-salient core, 82 is the outer rotor excitation winding, 83 is the inner rotor multi-salient magnet, 84 is the outer rotor induction coil, 85 is the rotor shaft .
  • Embodiment 1 This embodiment is composed of upper and lower two lift-resistance complementary impellers and a double-rotor generator, and its outer structure is as shown in FIG.
  • the outer casing rotor of the dual rotor generator is composed of an outer casing 27 and an induction coil 28.
  • the inner shaft rotor is composed of a rotating inner shaft 25 and a permanent magnet 26, and its structure is as shown in FIG.
  • the three lift type blades 1 of the upper impeller are fixed to the rotating shaft 3 of the upper impeller by the radial fixing bracket 2, and the three spiral resistance type blades 4 are fixed to the vicinity of the rotating shaft 3.
  • the lower end flange 5 of the upper impeller shaft and the flange 6 connected to the inner shaft rotor of the generator are fixedly connected by a screw nut, and the lower flange 8 of the lower impeller shaft is fixedly connected to the generator outer casing 27 by screws.
  • An upper reinforcing bearing 24 and a lower reinforcing bearing 30 are disposed between the outer casing 27 of the dual-rotor generator and the rotating shaft 25, so that the outer casing 27 of the double-rotor generator also serves to ensure the upper impeller with respect to the upper impeller.
  • Position the rotating base The downwardly extending section 14 of the lower impeller rotating shaft is inserted into the sleeve of the fan base 12, through the upper bearing 13, the tapered lower bearing 15 and the lock nut 16, the downward extension 14 of the lower impeller rotating shaft is in the fan The sleeve of the base 12 is free to rotate.
  • the electric slip ring device of the present embodiment is as shown in Fig. 4.
  • the upper end of the cylindrical rotating member 17 is fixedly coupled to the lower end portion of the downward extending portion 14 of the lower impeller rotating shaft by a screw structure, and the cylindrical rotating member 17 is connected. Rotate synchronously with the lower impeller rotation axis.
  • Three conductive slip rings 18 are disposed in the axial direction of the cylindrical rotating member 17, and the three conductive slip rings 18 are electrically connected to the three electric power output lines of the induction coils in the outer casing rotor through the wires 19 and the connecting terminals 29, respectively.
  • 20 is always in electrical contact with the conductive slip ring 18 under the elastic force of the compression spring 21, and the conductive brush 20 is electrically connected to the terminal 22 fixed to the terminal fixing bracket 23 of the fan base 12 via a wire.
  • the conventional generator the stator is fixed, and the external force only drives the rotor to rotate.
  • the magnetic lines of force are continuously cut, so that an induced current is generated in the induction coil of the generator to generate electricity.
  • the larger the external force torque the higher the rotor speed and the greater the induced current generated.
  • the upper and lower impellers rotate independently in the reverse direction, and the upper and lower impeller rotational moments respectively act on the outer casing rotor and the inner shaft rotor of the double-rotor generator, so that the relative angular velocity between the outer casing rotor and the inner-shaft rotor is increased, and the induction coil cuts the magnetic lines of force.
  • the number of strips is increased, so that more induced currents can be generated.
  • Embodiment 2 This embodiment is composed of a lift-resistance complementary impeller, a resistance type impeller and a double-rotor excitation generator, and its outer structure is as shown in FIG.
  • the upper lift-resistance complementary impeller rotating shaft is fixedly connected to the flange 46 of the upper end of the inner shaft rotor rotating shaft of the double-rotor excitation generator through the flange 45, and the lower resistance type impeller rotating shaft upper end flange 48
  • the screw is fixedly connected to the outer casing of the rotor of the double rotor excitation generator casing.
  • the outer rotor of the double rotor excitation generator is provided with an induction coil
  • the inner shaft rotor is provided with a core and an excitation coil.
  • the excitation current supplied by the battery is first transmitted to the housing terminal of the outer casing rotor through an electric slip ring device disposed at the lower end of the lower resistance impeller rotation shaft, and the excitation current is supplied to the excitation coil of the inner shaft rotor through the electric slip ring device.
  • FIG. 8 is a schematic view showing the structure of the electric slip ring device of this embodiment.
  • the threaded interface 62 at the upper end of the cylindrical rotating member 61 abuts the lowermost threaded end of the rotating shaft of the lower impeller, the flange interface 63 is fixedly connected with the fan base, and the terminal fixing bracket 64 can be provided with a plurality of connecting terminals 65, each of which The terminal 65 is electrically connected to the brush 67, and the brush 67 is always electrically connected to the electric slip ring 68 of the outer ring of the cylindrical rotating body 61 under the elastic force of the compression spring 66.
  • the number of brushes, slip rings and terminals can be determined according to actual needs.
  • all the parameter indexes collected by various types of sensors are input into the intelligent control device, and the intelligent control device can process and analyze the received parameter indexes according to a preset program, and then the battery is The magnitude of the output excitation current or the direction of the current is adjusted in time to change the intensity of the excitation magnetic field or the direction of the magnetic field near the inner shaft rotor, thereby adjusting or balancing the output voltage of the induction coil of the outer casing and the magnitude of the output current.
  • the lower resistance type impeller has a characteristic that the resistance type impeller has a low wind speed start-up although the ⁇ value does not exceed one.
  • the lower resistance type impeller first starts to rotate.
  • the upper and lower impellers rotate in the opposite direction, which can generate large inductance in the double rotor generator. Current.
  • Embodiment 3 The present embodiment is composed of two lift-resistance complementary impellers and a double-rotor multi-salient-excited generator, and its outer shape and structure are as shown in FIG.
  • the upper lift-resistance complementary impeller is composed of a rotating shaft 70, a fixed bracket 71, a lift type blade 72, a spiral resistance type blade 73, and a resistance type blade 74.
  • the inner end of the fixed bracket 71 is fixed to the rotating shaft 70, and fixed.
  • a resistance type blade 74 is fixed to the outer edge end of the bracket 71, and a lift type blade 72 is fixed to the middle of the fixed bracket 71, and the spiral resistance type blade 73 is fixed around the rotation shaft 70.
  • the upper lift-resistance complementary impeller rotating shaft is fixedly connected to the flange of the upper end of the inner shaft rotor rotating shaft of the double-rotor multi-salient excitation generator through the flange.
  • the windward faces of the drag blades 74, the lift blades 72 and the spiral drag blades 73 of the upper lift-resistance complementary impeller determine that the upper impeller rotates clockwise after the wind (looking down from the top of the fan).
  • the lower lift-resistance complementary impeller is also composed of a rotating shaft, a radial fixing bracket 76, a lift type blade 77, a spiral resistance type blade 78 and a resistance type blade 79, and the lower lift-resistance complementary type.
  • the upper end flange of the impeller rotating shaft is fixedly connected to the outer casing of the double rotor multi-salient excitation generator casing rotor by screws.
  • the windward faces of the drag blades 79, the lift blades 77, and the helical drag blades 78 of the lower lift-resistance complementary impeller determine that the lower impeller rotates counterclockwise when viewed from the wind (looking down from the top of the fan).
  • the resistance blades of the upper and lower impellers are each three, and the lift type blades are also three.
  • the number of resistance blades and lift blades can be appropriately increased or decreased.
  • the impeller consists of two lift-type blades and two resistance-type blades, two lift-type blades are fixed at the opposite ends of the shorter fixed bracket, and the two resistance-type blades are fixed at The long fixing brackets are both ends, and the shorter fixing brackets are perpendicular to the longer fixing brackets.
  • a plurality of combinations of a plurality of lift type blades and a plurality of more than three resistance type blades and one spiral type resistance type blade may be employed.
  • the structure of the dual-rotor multi-salient-excitation generator is as shown in FIG.
  • the outer casing rotor is provided with a plurality of salient pole cores 81, an exciting coil 82 and an induction coil 84, and the rotor shaft 85 is located at the center of the multi-stationary pole magnet 83.
  • the upper impeller rotating shaft 70 is fixedly connected to the flange of the upper end of the inner rotor shaft 85 of the double-rotor multi-salient excitation generator through a flange.
  • the upper flange of the lower resistance type impeller rotating shaft is fixedly connected with the double rotor multi-salient excitation generator housing rotor by screws.
  • the battery provides the excitation current, so that the outer rotor multi-salient core 81 is magnetically polarized, the upper and lower impellers are reversely rotated, and the induced current generated in the induction coil 84 is rotated through the terminal and the wire and the lower resistance impeller.
  • the electric slip ring device at the lower end of the shaft is output to the terminal of the wiring fixing bracket fixed to the fan base.
  • the upper impeller and the lower impeller of the present invention may also have a plurality of combinations of two and two.
  • the upper impeller may be a lift type impeller, a resistance type impeller, or a lift-resistance complementary type impeller.
  • the lower impeller It can be either a lift type impeller or a resistance type impeller, or a lift-resistance complementary type impeller.
  • the upper and lower impellers are all disposed along the same axis, and are respectively fixedly connected with the outer casing rotor and the inner shaft rotor of the double-rotor generator.
  • the electric slip ring device electrically connects the induction coil or the excitation coil disposed on the outer casing rotor and the inner shaft rotor with the terminal fixed to the fan base to realize the current in the output induction coil and input the excitation current to the excitation coil.
  • the dual-rotor generator of the present invention may be configured such that the outer casing rotor is provided with an induction coil, the inner shaft rotor is provided with an iron core and an excitation coil or a permanent magnet; the inner shaft rotor is provided with an induction coil, and the outer casing rotor is provided with a core and excitation.
  • the coil or the permanent magnet is arranged; the outer rotor is provided with a multi-salient core and an induction coil, and the inner shaft rotor is provided with a multi-salient magnet.
  • the mounting position and the mounting structure of the electric slip ring device of the present invention are various, and the cylindrical rotating member in the electric slip ring device can be fixedly connected to the lower impeller rotating shaft and rotated synchronously, or can be rotated with the upper impeller.
  • the shaft is fixedly connected and rotates synchronously.

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  • Life Sciences & Earth Sciences (AREA)
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Abstract

一种双叶轮独立逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特点是，两个叶轮上下同轴线设置，发电机由内轴转子和外壳转子构成，上方叶轮转动轴（3）与内轴转子固定连接，下方叶轮转动轴与外壳转子固定连接，上方叶轮与下方叶轮的旋转方向不同，内轴转子或外壳转子的感应线圈（28，84）或励磁线圈（82）通过电滑环装置与固定于风机基座的接线端子（22，65）呈电连接。该风力发电机提高了风机的综合λ数值，并将综合λ数值转化为发电机外壳转子与内轴转子之间的相对线速度，进而提高了发电效率；上、下叶轮两两组合的多种结构形式，既兼顾低风速提升发电效率，又避免遇大风时风机因失速而受损；独特的电滑环装置，适合风机和发电机结构特点，简单、组装方便。

Description

双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机 技术领域
本发明涉及一种风力发电机，尤其为一种将两个独立逆向旋转的叶轮沿同一轴线来构建的垂直轴风力发电机。
背景技术
垂直轴风力发电机在低风速条件仍然能启动发电，这一特点使垂直轴风力发电机在许多风场资源一般的地区仍然能发挥较好的作用。对于全年大部分时间，风速在8米/秒以下的风场，垂直轴风力发电机尤其适用。针对较低风速，如何获得较大的λ数值(λ数值为风轮转速叶尖或叶边处的线速度与风速的比值)，完善风叶设计是一个技术途径，但不应该是唯一的技术途径。
本发明目的是，给出一种采用两个独立逆向旋转叶轮来获得风机综合具有叠加效果的λ数值，并且双叶轮配合双转子发电机，提高了发电机两转子之间的线速度，从而使得较低风速风能也能被充分利用于发电。
为实现上述发明目的，本发明的技术方案是，一种双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其构成包括有风机基座、叶轮、发电机、控制装置，其特征在于：所述叶轮为两个，两个叶轮上下同轴线设置，所述发电机设置于上方叶轮与下方叶轮之间，所述发电机由内轴转子和外壳转子构成，内轴转子和外壳转子之间设置有加固轴承，上方叶轮转动轴与内轴转子固定连接，下方叶轮转动轴与外壳转子固定连接，上方叶轮与下方叶轮的旋转方向不同，内轴转子或外壳转子的感应线圈或励磁线圈通过电滑环装置与固定于风机基座的接线端子呈电连接。
在上述技术方案中，所述电滑环装置由圆筒状旋转件、导电环、导电刷、压簧及导线构成，圆筒状旋转件与下方叶轮转动轴同轴线固定连接，若干导电环沿绝缘材质圆筒旋转件的轴向分层排布，各导电环分别通过导线与发电机内轴转子或外壳转子中的感应线圈或励磁线圈呈电连接，压簧压迫导电刷，使每个导电刷的一端分别与各个导电环呈滑动接触式电连接，每个导电刷的另一端经导线与接线端子呈电连接。
在上述技术方案中，所述上方叶轮为升力型叶轮、或为阻力型叶轮、或为升阻互补型叶轮，所述下方叶轮为升力型叶轮、或为阻力型叶轮、或为升阻互补型叶轮；
在上述技术方案中，所述外壳转子设置有感应线圈、内轴转子设置有永磁体；或者所述外壳转子设置有永磁体、内轴转子设置有感应线圈；或者所述外壳转子设置有铁芯和励磁线圈、内轴转子设置有感应线圈；或者所述内轴转子设置有感应线圈、外壳转子设置有铁芯和励磁 线圈，或者所述外壳转子设置有多凸极铁芯及感应线圈、内轴转子为多凸极导磁体。
在上述技术方案中，所述上方叶轮和下方叶轮均为升阻互补型叶轮，所述发电机设置于上方叶轮与下方叶轮中间，上方叶轮转动轴下端通过法兰盘与发电机内轴转子固定连接，下方叶轮转动轴的上端通过法兰盘与发电机外壳转子固定连接，下方叶轮转动轴下部插入至风机基座的套筒里，下方叶轮转动轴与风机基座之间设置一对锥形轴承，下方叶轮转动轴的最下端采用螺母锁紧，使得下方叶轮转动轴的下部能在风机基座的套筒内自由旋转，所述电滑环装置的圆筒状旋转件通过螺旋方式或通过联轴器与下方叶轮转动轴的下端部固定连接，所述发电机内轴转子嵌装有永磁体，发电机外壳转子嵌装有铁芯和感应线圈，外壳转子感应线圈经穿过下方叶轮转轴中心通孔的导线与电滑环装置的导电环呈电连接，导电刷则经导线与固定于风机基座接线端子呈电连接。在本技术方案中，所述升阻互补型叶轮由转动轴、固定支架、升力型叶片和螺旋式阻力型叶片构成，固定支架内端与转动轴固定，固定支架外端则固定升力型叶片，螺旋式阻力型叶片围绕转动轴固定。
在上述技术方案中，构成中还包括有储电装置，所述上方叶轮为升力型叶轮，所述下方叶轮为阻力型叶轮，上方叶轮转动轴下端通过法兰盘与发电机内轴转子固定连接，下方叶轮转动轴的上端通过法兰盘与发电机外壳转子固定连接，下方叶轮转动轴下部插入至风机基座的套筒里，下方叶轮转动轴与风机基座之间设置一对锥形轴承，下方叶轮转动轴的最下端采用螺母锁紧，使得下方叶轮转动轴的下部能在风机基座的套筒内自由旋转，所述电滑环装置的圆筒状旋转件通过螺旋方式或通过联轴器与下方叶轮转动轴固定连接，所述发电机内轴转子的励磁线圈经电滑环装置与固定于外壳转子上的接线端子呈电连接，发电机外壳转子的感应线圈经与固定于外壳转子上的接线端子呈电连接，若干导线的一端连接外壳转子上的接线端子，导线的另端穿过下方叶轮转轴中心通孔与电滑环装置的若干导电环呈电连接，若干导电刷则经导线与固定于风机基座接线端子呈电连接，所述储电装置为内轴转子的励磁线圈提供电能。
在上述技术方案中，所述储电装置包括蓄电池和智能控制装置，所述储电装置为蓄电池，该蓄电池将激励电流经电滑环装置输送到内轴转子的激励线圈中，该智能控制装置接收传感器产生的电信号，进而适时地调节和控制蓄电池输出电流的大小和方向。
在上述技术方案中，所述升阻互补型叶轮由转动轴、固定支架、阻力型叶片、升力型叶片和螺旋式阻力型叶片构成，固定支架内端与转动轴固定，固定支架外边缘端固定有阻力型叶片，固定支架中部固定有升力型叶片，螺旋式阻力型叶片围绕转动轴固定。
在上述技术方案中，所述阻力型叶片不少于两个，所述升力型叶片不少于两个。
本发明的优点是，1.本发明将上方叶轮和下方叶轮设置成逆向旋转，既可以提高该风机的综合λ数值，上、下叶轮采用升力型叶轮、阻力型叶轮、升阻互补型叶轮的各种两两组合形式，能充分发挥各种叶轮的风力特性，采长补短，既可兼顾低风速风场条件下的发电效率提升，又能有效避免风机遇高风速而失速易损情况；2.本发明将上方叶轮和下方叶轮同轴线设置，简化了风机结构，双转子发电机既实现发电功能，同时，该双转子发电机相对于上方叶轮而言，还起到了保证上方叶轮稳定旋转的基座定位作用；3.本发明给出的双转子发电机分别固定于风机的上方叶轮和下方叶轮，风机综合λ数值转变成发电机内外转子之间的较大的线速度，进而提高了发电效率；4.本发明给出的电滑环装置，其结构适合风机和发电机的结构特点，简单、组装方便，有效地解决了本发明风机双转子发电机感应电流输出和励磁电流输入的技术问题。5.扩容的该电滑环装置结构该线速度分别的上下叶轮采用升阻互补型叶轮，既兼顾了风轮低风速启动旋转的要求，又考虑了较高风速升力型叶片的λ数值较大的特点。这样，在低风速区域，风机能有较高的发电效率；6.本发明双转子发电机还考虑采用励磁发电方式，通过储电装置向励磁线圈供电，并通过控制和调节储电装置励磁电流的大小和方向，既可以使发电机有稳定的电能输出，还可以对上下叶轮的旋转产生积极的影响。
附图说明
图1是本发明实施例一的外形结构示意图。
图2是图1的A方向结构示意图。
图3是图1的B-B方向结构示意图。
图4是本发明实施例一中，电滑环装置的安装结构示意图。
图5是本发明实施例一中，双转子发电机的结构剖视图。
图6是本发明实施例二的外形结构示意图。
图7是图6的C-C方向及E方向结构示意图。
图8是本发明实施例二中，电滑环装置结构示意图。
图9是本发明实施例三外形结构示意图。
图10是图9的D-D方向结构示意图。
图11是本发明实施例三中的双转子多凸极励磁发电机结构示意图。
以上附图中，1是上方升阻互补型叶轮的升力型叶片，2是上方升阻互补型叶轮的径向固定支架，3是上方升阻互补型叶轮的转动轴，4是上方升阻互补型叶轮的螺旋式阻力型叶片，5是上方升阻互补型叶轮转动轴法兰盘，6是连接发电机内轴转子的法兰盘，7是双转子发电机，8是下方升阻互补型叶轮转动轴法兰盘，9是下方升阻互补型叶片的固定支架，10 是下方升阻互补型叶轮的升力型叶片，11是下方升阻互补型叶轮的螺旋式阻力型叶片，12是风机基座，13是上轴承，14是下方升阻互补型叶轮转动轴的向下延长段，15是锥形下轴承，16是锁紧螺母，17是圆筒状旋转件，18是导电滑环，19是导线，20是导电刷，21是压簧，22是接线端子，23是接线端固定支架，24是上加固轴承，25是内轴转子转动轴，26是永磁体，27是外壳转子的壳体，28是外壳转子的感应线圈，29是接线端子，30是下加固轴承，31是螺钉孔，41是上方升阻互补型叶轮的升力型叶片，42是上方升阻互补型叶轮的径向固定支架，43是上方升阻互补型叶轮的转动轴，44是上方升阻互补型叶轮的螺旋式阻力型叶片，45是上方升阻互补型叶轮转动轴法兰盘，46是连接发电机内轴转子的法兰盘，47是双转子发电机，48是下方阻力型叶轮转动轴法兰盘，49是下方阻力型叶片的固定支架，50是下方阻力型叶轮的阻力型叶片，51是上轴承，52是风机基座，53是下方阻力型叶轮转动轴的向下延长段，61是圆筒状旋转件，62是螺纹接口，63是法兰接口，64是接线端固定支架，65接线端子，66是压簧，67是电刷，68是电滑环。70是转动轴，71是上方“阻升阻互补型”叶轮的径向固定支架，72是上方“阻升阻互补型”叶轮的升力型叶片，73是上方“阻升阻互补型”叶轮中央的螺旋式阻力型叶片，74是上方“阻升阻互补型”叶轮外边缘的阻力型叶片，75是双转子双凸极励磁发电机，76是下方“阻升阻互补型”叶轮的径向固定支架，77是下方“阻升阻互补型”叶轮的升力型叶片，78是下方“阻升阻互补型”叶轮中央的螺旋式阻力型叶片，79是下方“阻升阻互补型”叶轮外边缘的阻力型叶片，80是风机基座，81是外转子多凸极铁芯，82是外转子励磁绕组，83是内转子多凸极导磁体，84是外转子感应线圈，85是转子轴。
具体实施方式
实施例一，本实施例由上下两个升阻互补型叶轮和一个双转子发电机构成，其外形结构如附图1所示。其中，双转子发电机的外壳转子由外壳体27和感应线圈28构成，内轴转子由转动内轴25和永磁体26构成，其结构如附图5所示。
本实施例中，上方叶轮的三个升力型叶片1通过径向固定支架2与上方叶轮的转动轴3固定，三个螺旋式阻力型叶片4则固定于转动轴3附近。上方叶轮的转动轴3下端法兰盘5与连接发电机内轴转子的法兰盘6通过螺杆螺帽固定连接，下方叶轮转动轴上端法兰盘8通过螺钉与发电机外壳体27固定连接。该双转子发电机的外壳体27与转动轴25之间设置有上加固轴承24和下加固轴承30，这样，相对于上方叶轮而言，双转子发电机的外壳体27还起到了保证上方叶轮定位旋转的基座作用。下方叶轮转动轴的向下延长段14插入到风机基座12的套筒中，通过上轴承13、锥形下轴承15以及锁紧螺母16，使下方叶轮转动轴的向下延 长段14在风机基座12的套筒中能自由旋转。
本实施例中的电滑环装置如附图4所示，圆筒状旋转件17的上端通过螺纹结构与下方叶轮转动轴的向下延长段14的下端部固定连接，圆筒状旋转件17与下方叶轮转动轴同步旋转。在圆筒状旋转件17的轴向设置有三圈导电滑环18，三个导电滑环18分别通过导线19和接线端子29与外壳转子中感应线圈的三条电能输出线电连接，三个导电刷20在压簧21弹力作用下，始终与导电滑环18呈电接触连接，导电刷20经导线与固定于风机基座12的接线端固定支架23上的接线端子22呈电连接。
从风机顶部向下看去(A向)，参见附图2，上方叶轮遇风的旋转方向为顺时针，而下方叶轮遇风时的旋转方向则为逆时针，参见附图3。
众所周知，传统发电机，定子固定不动，外力只驱动转子旋转。当外力驱动转子旋转过程中，不断地切割磁力线，从而会在发电机感应线圈中形成感应电流而发出电。外力力矩越大，转子转速越高，所产生的感应电流就越大。
本实施例中，上下叶轮独自逆向旋转，上下叶轮旋转力矩分别作用于双转子发电机的外壳转子和内轴转子，使得外壳转子与内轴转子之间的相对角速度加大，感应线圈切割磁力线的条数增多，从而能产生出更多的感应电流。
实施例二，本实施例由一个升阻互补型叶轮、一个阻力型叶轮和一个双转子励磁发电机构成，其外形结构如附图6所示。
本实施例中，上方升阻互补型叶轮转动轴通过法兰盘45与双转子励磁发电机的内轴转子转动轴上端的法兰盘46固定连接，下方阻力型叶轮转动轴上端法兰盘48通过螺钉与该双转子励磁发电机外壳转子的外壳体固定连接。
本实施例中，双转子励磁发电机的外壳转子设置有感应线圈，而内轴转子则设置有铁芯和励磁线圈。蓄电池提供的励磁电流先通过设置在下方阻力叶轮转动轴下端的电滑环装置传输到外壳转子的壳体接线端子处，再通过电滑环装置将励磁电流输送给内轴转子的励磁线圈中。这样，在内轴转子附近形成磁场，当外壳转子和内轴转子逆向旋转时，即在外壳转子的感应线圈中即产生感应电流，感应电流经外壳体接线端子和导线以及设置在下方阻力叶轮转动轴下端的电滑环装置，输出到固定于风机基座的接线固定支架接线端子处。附图8给出了本实施例电滑环装置结构示意图。圆筒状旋转件61上端的螺纹接口62与下方叶轮转动轴的最下端螺纹口对接，法兰接口63与风机基座固定连接，接线端固定支架64上可以设置若干个接线端子65，每个接线端子65与电刷67呈电连接，电刷67在压簧66弹力压迫下，始终与圆筒状旋转体61外圈的电滑环68呈电连接。电刷、电滑环及接线端子数量可根据实际 需要确定。
本实施例中，将各类传感器采集到的各项参数指标全部输入到智能控制装置中，智能控制装置能按预先设定的程序，处理并分析所接收到的各项参数指标，进而对蓄电池输出的励磁电流的大小或电流方向做出适时调节，从而改变内轴转子附近励磁磁场的强度大小或磁场方向，进而能达到调节或平衡外壳转子感应线圈输出电压的高低和输出电流的大小。
在本实施例中，下方阻力型叶轮虽然λ数值不超过1，但阻力型叶轮具有低风速启转的特性。在风速较低情况下，下方阻力型叶轮首先启动旋转，当风速增加使上方升阻互补型叶轮也启动旋转时，上、下叶轮逆向旋转，既能在双转子发电机中产生较大的感应电流。
实施例三，本实施例由两个升阻互补型叶轮和一个双转子多凸极励磁发电机构成，其外形及结构如附图9所示。
本实施例中，上方升阻互补型叶轮由转动轴70、固定支架71、升力型叶片72、螺旋式阻力型叶片73和阻力型叶片74构成，固定支架71内端与转动轴70固定，固定支架71外边缘端固定有阻力型叶片74，固定支架71中部固定有升力型叶片72，螺旋式阻力型叶片73围绕转动轴70固定。上方升阻互补型叶轮转动轴通过法兰盘与双转子多凸极励磁发电机的内轴转子转动轴上端的法兰盘固定连接。上方升阻互补型叶轮的阻力型叶片74、升力型叶片72及螺旋式阻力型叶片73的迎风面决定上方叶轮遇风后呈顺时针旋转(从风机顶部向下看去)。
本实施例中，参见附图10，下方升阻互补型叶轮也是由转动轴、径向固定支架76、升力型叶片77、螺旋式阻力型叶片78和阻力型叶片79构成，下方升阻互补型叶轮转动轴上端法兰盘通过螺钉与该双转子多凸极励磁发电机外壳转子的外壳体固定连接。下方升阻互补型叶轮的阻力型叶片79、升力型叶片77及螺旋式阻力型叶片78的迎风面决定下方叶轮遇风呈逆时针旋转(从风机顶部向下看去)。
本实施例中，上、下叶轮的阻力型叶片各为三个，升力型叶片也各为三个。根据风机参数设计的需要，可以适当增加或减少阻力型叶片和升力型叶片的数量。如，最简单的一种结构形式是，叶轮由两个升力型叶片和两个阻力型叶片构成，两个升力型叶片固定在较短的固定支架两端，两个阻力型叶片则固定在较长的固定支架两端，较短的固定支架与较长的固定支架相互垂直。又如，也可以采用数量多于三个升力型叶片与数量多于三个阻力型叶片再与一个螺旋式阻力型叶片所构成的多种组合结构。
本实施例中，双转子多凸极励磁发电机结构如附图11所示。外壳转子设置有多凸极铁芯81、励磁线圈82及感应线圈84、转子轴85位于多凸极导磁体83中央。上方叶轮转动轴70通过法兰盘与双转子多凸极励磁发电机的内转子轴85上端的法兰盘固定连接。下方阻力 型叶轮转动轴上端法兰盘通过螺钉与该双转子多凸极励磁发电机外壳转子固定连接。
本实施例中，蓄电池提供励磁电流，使外转子多凸极铁芯81磁极化，上、下叶轮逆向旋转，在感应线圈84中产生的感应电流经接线端子和导线以及设置在下方阻力叶轮转动轴下端的电滑环装置，输出到固定于风机基座的接线固定支架接线端子处。
本发明虽然只给出上述三个实施例，但本发明技术方案所包括的风机、发电机、电滑环装置的结构形式不受上述三个实施例描述内容的限制。
进一步说，本发明的上方叶轮与下方叶轮还可以有多种两两组合形式，上方叶轮既可以为升力型叶轮、也可以为阻力型叶轮、还可以为升阻互补型叶轮，同样，下方叶轮既可以为升力型叶轮、也可以为阻力型叶轮、还可以为升阻互补型叶轮，上下叶轮均沿同一轴线设置，均分别与双转子发电机的外壳转子和内轴转子固定连接，均通过电滑环装置将设置于外壳转子和内轴转子的感应线圈或励磁线圈与固定于风机基座的接线端子呈电连接，以实现输出感应线圈中的电流，和向励磁线圈输入励磁电流。
进一步说，本发明的双转子发电机结构形式还可以是，外壳转子设置感应线圈、内轴转子设置铁芯及励磁线圈或设置永磁体；内轴转子设置感应线圈、外壳转子设置铁芯及励磁线圈或设置永磁体；外壳转子设置多凸极铁芯及感应线圈，内轴转子设置有多凸极导磁体。
进一步说，本发明的电滑环装置的安装位置和安装结构是多样的，电滑环装置中的圆筒状旋转件既可以与下方叶轮转动轴固定连接且同步旋转，也可以与上方叶轮转动轴固定连接且同步旋转。

Claims (10)

  1. 一种双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其构成包括有风机基座、叶轮、发电机、控制装置，其特征在于：所述叶轮为两个，两个叶轮上下同轴线设置，所述发电机设置于上方叶轮与下方叶轮之间，所述发电机由内轴转子和外壳转子构成，内轴转子和外壳转子之间设置有加固轴承，上方叶轮转动轴与内轴转子固定连接，下方叶轮转动轴与外壳转子固定连接，上方叶轮与下方叶轮的旋转方向不同，内轴转子或外壳转子的感应线圈或励磁线圈通过电滑环装置与固定于风机基座的接线端子呈电连接。
  2. 根据权利要求1所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述电滑环装置由圆筒状旋转件、导电环、导电刷、压簧及导线构成，圆筒状旋转件与下方叶轮转动轴同轴线固定连接，若干导电环沿绝缘材质圆筒旋转件的轴向分层排布，各导电环分别通过导线与发电机内轴转子或外壳转子中的感应线圈或励磁线圈呈电连接，压簧压迫导电刷，使每个导电刷的一端分别与各个导电环呈滑动接触式电连接，每个导电刷的另一端经导线与接线端子呈电连接。
  3. 根据权利要求1所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述上方叶轮为升力型叶轮、或为阻力型叶轮、或为升阻互补型叶轮，所述下方叶轮为升力型叶轮、或为阻力型叶轮、或为升阻互补型叶轮。
  4. 根据权利要求1所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述外壳转子设置有感应线圈、内轴转子设置有永磁体；或者所述外壳转子设置有永磁体、内轴转子设置有感应线圈；或者所述外壳转子设置有铁芯和励磁线圈、内轴转子设置有感应线圈；或者所述内轴转子设置有感应线圈、外壳转子设置有铁芯和励磁线圈，或者所述外壳转子设置有多凸极铁芯及感应线圈、内轴转子为多凸极导磁体。
  5. 根据权利要求1或2或3或4所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述上方叶轮和下方叶轮均为升阻互补型叶轮，所述发电机设置于上方叶轮与下方叶轮中间，上方叶轮转动轴下端通过法兰盘与发电机内轴转子固定连接，下方叶轮转动轴的上端通过法兰盘与发电机外壳转子固定连接，下方叶轮转动轴下部插入至风机基座的套筒里，下方叶轮转动轴与风机基座之间设置一对锥形轴承，下方叶轮转动轴的最下端采用螺母锁紧，使得下方叶轮转动轴的下部能在风机基座的套筒内自由旋转，所述电滑环装置的圆筒状旋转件通过螺旋方式或通过联轴器与下方叶轮转动轴的下端部固定连接，所述发电机内轴转子嵌装有永磁体，发电机外壳转子嵌装有铁芯和感应线圈，外壳转子感应线圈经穿过下方叶轮转轴中心通孔的导线与电滑环装置的导电环呈电连接，导电刷则经导线与固定于 风机基座接线端子呈电连接。
  6. 根据权利要求5所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述升阻互补型叶轮由转动轴、固定支架、升力型叶片和螺旋式阻力型叶片构成，固定支架内端与转动轴固定，固定支架外端则固定升力型叶片，螺旋式阻力型叶片围绕转动轴固定。
  7. 根据权利要求1或2或3或4所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：构成中还包括有储电装置，所述上方叶轮为升力型叶轮，所述下方叶轮为阻力型叶轮，上方叶轮转动轴下端通过法兰盘与发电机内轴转子固定连接，下方叶轮转动轴的上端通过法兰盘与发电机外壳转子固定连接，下方叶轮转动轴下部插入至风机基座的套筒里，下方叶轮转动轴与风机基座之间设置一对锥形轴承，下方叶轮转动轴的最下端采用螺母锁紧，使得下方叶轮转动轴的下部能在风机基座的套筒内自由旋转，所述电滑环装置的圆筒状旋转件通过螺旋方式或通过联轴器与下方叶轮转动轴固定连接，所述发电机内轴转子的励磁线圈经电滑环装置与固定于外壳转子上的接线端子呈电连接，发电机外壳转子的感应线圈经与固定于外壳转子上的接线端子呈电连接，若干导线的一端连接外壳转子上的接线端子，导线的另端穿过下方叶轮转轴中心通孔与电滑环装置的若干导电环呈电连接，若干导电刷则经导线与固定于风机基座接线端子呈电连接，所述储电装置为内轴转子的励磁线圈提供电能。
  8. 根据权利要求7所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述储电装置包括蓄电池和智能控制装置，该蓄电池将激励电流经电滑环装置输送到内轴转子的激励线圈中，该智能控制装置接收传感器产生的电信号，进而适时地调节和控制蓄电池输出电流的大小和方向。
  9. 根据权利要求5所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述升阻互补型叶轮由转动轴、固定支架、阻力型叶片、升力型叶片和螺旋式阻力型叶片构成，固定支架内端与转动轴固定，固定支架外边缘端固定有阻力型叶片，固定支架中部固定有升力型叶片，螺旋式阻力型叶片围绕转动轴固定。
  10. 根据权利要求9所述的双叶轮逆向旋转且沿同一轴线构建的垂直轴风力发电机，其特征在于：所述阻力型叶片不少于两个，所述升力型叶片不少于两个。
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NO20211518A1 (en) * 2021-12-16 2023-06-19 World Wide Wind Tech As A contra-rotating wind turbine and a wind power plant with a contra-rotating wind turbine
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