CN114825846A - Magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator - Google Patents

Magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator Download PDF

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Publication number
CN114825846A
CN114825846A CN202210404602.8A CN202210404602A CN114825846A CN 114825846 A CN114825846 A CN 114825846A CN 202210404602 A CN202210404602 A CN 202210404602A CN 114825846 A CN114825846 A CN 114825846A
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CN
China
Prior art keywords
vibrator
power generation
magnetic
stator
current generator
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Pending
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CN202210404602.8A
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Chinese (zh)
Inventor
白旭
孙萌
王嘉潞
邹涛
牛建杰
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Jiangsu University of Science and Technology
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Jiangsu University of Science and Technology
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Priority to CN202210404602.8A priority Critical patent/CN114825846A/en
Publication of CN114825846A publication Critical patent/CN114825846A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • 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
    • H02K11/30—Structural association with control circuits or drive circuits

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention discloses a magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator which comprises a base, wherein stator winding structures are symmetrically arranged at two ends of the base, vibrator structures are arranged between the stator winding structures at two sides, the vibrator structures are arranged on the base, the stator winding structures comprise stator magnetic disks, armature disks are arranged at the ends, close to each other, of the stator magnetic disks at two sides, a plurality of coil windings are arranged on the surfaces of the armature disks in an annular array mode, each vibrator structure comprises a vibrator, vibrator magnetic disks are arranged at two ends of each vibrator in a rotating mode, and magnetic poles of the vibrator magnetic disks and the stator magnetic disks repel each other. According to the invention, a permanent magnet disk structure is adopted to replace a metal spring structure, no mechanical contact exists between the structures, the energy loss is relatively reduced, and the device can capture energy to a greater extent so as to improve the power generation efficiency; the double-stator and single-vibrator structure is adopted, the rotational inertia of the device is small, the heat dissipation effect is good, the magnetic disk structure in the structure enables the device to move in two degrees of freedom, the magnetic flux change between the magnetic disk structure and the winding is increased, and therefore the power generation efficiency is improved.

Description

Magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator
Technical Field
The invention relates to an ocean current energy power generation device, in particular to a magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator.
Background
With the development of science and technology, fossil fuels such as coal, petroleum and natural gas are further developed and utilized, and the shortage of non-renewable energy sources leads people to turn attention to renewable energy sources such as solar energy, wind energy and ocean energy. In the development and utilization of various renewable energy sources, the development and utilization of ocean energy are more and more emphasized, the predictability is strong, and the load is stable, so that the method is particularly suitable for the development and utilization of ocean new energy sources.
The flow induced vibration phenomenon is a phenomenon that when fluid flows through a solid, alternate fluid force is applied to the surface of the solid, the solid reciprocates, and the reciprocating motion of the solid changes the fluid state of the fluid, so that the fluid and the solid which act on the surface of the solid are changed to interact. The current topic of current theme is to generate electricity by using ocean current energy through the phenomenon of current induced vibration, but the ocean bottom environment is complex, and how to research and develop an efficient, stable, safe and reliable ocean current energy generating device becomes an important subject. At present, most of flow-induced vibration power generation devices adopt metal springs, and the metal springs are short in service life and need to be replaced periodically. Therefore, the magnetic suspension spring is proposed by the scholars, and the permanent magnet serving as the spring structure is combined with the flow-induced vibration power generation device, so that the loss can be reduced, and the service life can be prolonged.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a magnetic suspension and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator which is used for solving the problems of short service life and large loss of a metal spring in the traditional structure, so that the service life of a power generation device is prolonged, and the power generation efficiency of the power generation device is improved.
The technical scheme is as follows: the stator winding structure comprises stator magnetic disks, armature disks are arranged at the ends, close to each other, of the stator magnetic disks at the two sides, a plurality of coil windings are arranged on the surface of the armature disks in an annular array mode, the vibrator structure comprises vibrators, vibrator magnetic disks are arranged at the two ends of the vibrators in a rotating mode, and magnetic poles of the vibrator magnetic disks and the stator magnetic disks are mutually repellent.
The surface of the armature plate is annularly arrayed with a plurality of winding supporting bodies, each winding supporting body is fixedly provided with a coil winding, and the coil windings are triangular and are respectively embedded into the plurality of winding supporting bodies.
The surface of the stator magnetic disk is provided with a plurality of first grooves along an annular array, a permanent magnet is arranged in each first groove, and the N pole and the S pole of each permanent magnet face inwards and outwards respectively.
The armature plate is provided with a Hall sensor and a controller, and the Hall sensor is connected with the controller.
The bottom of the stator disk is installed at a notch corresponding to the base through a support column, a channel is arranged in the middle of the support column and used for placing a connecting line, and the channel in the support column is communicated with the inside of the base through the notch.
The vibrator structure is installed on the base through a rocker, the rocker comprises a guide rod, one end of the guide rod is rotatably connected with the vibrator, the other end of the guide rod is connected with a fixed rod through a connecting rod, and the fixed rod is installed on the base.
The ring array in the vibrator disk is provided with a plurality of second grooves, and permanent magnets are arranged in the second grooves, so that S poles of the permanent magnets face inwards, and N poles of the permanent magnets face outwards.
And a top cover is arranged at the end part of the vibrator magnetic disk.
The armature plate and the stator magnetic plate are coaxially arranged.
The base in install the battery, battery one end is connected with the controller, the other end is connected with power generation facility.
Has the advantages that: according to the invention, the permanent magnet disk structure is adopted to replace the traditional metal spring structure, no mechanical contact exists between the structures, the energy loss is relatively reduced, and the device can capture energy to a greater extent so as to improve the power generation efficiency; the double-stator and single-vibrator structure is adopted, the rotational inertia of the device is small, the heat dissipation effect is good, the magnetic disk structure in the structure enables the device to move in two degrees of freedom, the magnetic flux change between the magnetic disk structure and a winding is increased, and therefore the power generation efficiency is improved; the sensor and the controller are used for controlling the adjusting device to change the current direction, so that the interference and friction during operation are reduced, and the device is more stable in operation; the starting flow rate is low, the device is suitable for working in a low-flow-rate sea area, and the device is simple in structure and convenient for later maintenance and replacement.
Drawings
FIG. 1 is a first general structural diagram of the present invention;
FIG. 2 is a second overall structural schematic of the present invention;
FIG. 3 is a first schematic diagram of the stator winding structure of the present invention;
FIG. 4 is a second schematic diagram of the stator winding configuration of the present invention;
FIG. 5 is a schematic view of the stator winding structure of the present invention;
FIG. 6 is a schematic diagram of a transducer structure according to the present invention;
FIG. 7 is a schematic view of the internal structure of the vibrator of the present invention;
FIG. 8 is a schematic view of the rocker structure of the present invention;
FIG. 9 is a schematic diagram of the motion profile of the present invention;
fig. 10 is a schematic diagram of the control and regulation principle of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 and 2, the invention comprises a base 1, stator winding structures 4 are symmetrically arranged at two ends of the top of the base 1, the joint is subjected to waterproof sealing treatment, a vibrator structure 3 is arranged between the stator winding structures 4 at two sides, and the vibrator structure 3 is arranged at the top of the base 1 through a rocker 2.
Stator winding structure 4 of base 1 both sides has constituted two stator winding structures, as shown in fig. 3-5, stator winding structure 4 includes stator disc 53, annular shell 51 is installed to stator disc 53 one end, insulating material is chooseed for use to annular shell 51, armature plate 54 is installed to the other end, armature plate 54 and stator disc 53 coaxial arrangement, stator disc 53 installs in the notch 11 department that base 1 corresponds through support column 52 in the bottom, be provided with the passageway in the middle of the support column 52, be used for placing the connecting wire, passageway in the support column 52 passes through notch 11 and base 1 inside intercommunication. As shown in fig. 3, the surface of the stator disc 53 is circumferentially arrayed with a plurality of first grooves 56, each first groove 56 is provided with a permanent magnet, and the N pole and the S pole of the permanent magnet face inwards and outwards respectively. As shown in fig. 5, a plurality of winding supports are circumferentially arrayed on the surface of the armature plate 54, the winding supports are made of insulator materials and used for fixing the coil windings 55, and the coil windings 55 are respectively embedded into the plurality of winding supports in a triangular shape. Compared with the prior art that the coil is fixed by the armature plate 54 winding by a pouring method, the support body is more beneficial to heat dissipation. The coil windings 55 are divided into three groups and connected in series to form a three-phase circuit. The Hall sensor 58 and the controller 57 are arranged on the armature plate 54, the Hall sensor 58 is connected with the controller 57, the controller 57 is connected with a three-phase circuit, the position of the vibrator structure is monitored through the Hall sensor 58, signals are sent to the controller 57 to adjust the direction of three-phase current, and stable operation of the power generation device is achieved. The current direction of the three-phase circuit is controlled and adjusted through signals sent by the Hall sensor 58, when the vibrator structure 3 moves, the position of the vibrator structure 3 can be monitored, and when the current in the coil is reversed is judged.
As shown in fig. 6 and 7, the vibrator structure 3 includes a vibrator 31, a top cover 34, a vibrator disk 32, the vibrator 31 is a long cylinder made of an aluminum alloy, two identical vibrator disks 32 are disposed at two ends of the vibrator 31, one side of the vibrator disk 32 is welded to the vibrator 31, the top cover 34 is mounted at the other side of the vibrator disk, and a plurality of second grooves 33 are disposed in an annular array inside the vibrator disk 32 and used for placing permanent magnets, and the S pole of each permanent magnet faces inward and the N pole faces outward.
As shown in fig. 8, the rocker 2 includes a bearing 21, a guide rod 22, a connecting rod 24, a fixing rod 25, and a connecting shaft 23. The head of the guide rod 22 is of a hollow circular ring structure, a bearing 21 is installed in the guide rod, the bearing 21 is sleeved on the middle position of the vibrator 31, the other end of the guide rod 22 is connected with a connecting rod 24 through a connecting shaft 23, the other end of the connecting rod 24 is connected with a fixed rod 25 through the connecting shaft 23, and the fixed rod 25 is fixed on the surface of the base 1.
As shown in fig. 9 and 10, when the ocean current flows through the surface of the vibrator 31, the surface of the vibrator 31 is subjected to alternate fluid force, and due to the stator winding structures 4 symmetrically arranged on both sides, the magnetic poles of the vibrator disks 32 at both ends of the vibrator 31 and the magnetic poles of the stator disks 53 are opposite to generate repulsive force, the vibrator 31 is subjected to resultant force action in the motion process to drive the vibrator structure 3 to move in a c-shaped track or an 8-shaped track in a plane, at this time, the guide rod 22 of the rocker 2 moves together with the vibrator 31 through the bearing 21, and the connecting rod 24 and the fixing rod 25 are driven to move relatively through the connecting shaft 23 to play a role of pulling the vibrator structure 3.
When the vibrator 31 is influenced by ocean currents and starts to move in a plane, the vibrator deviates from an initial balance position, the Hall sensors 58 in the stator winding structures 4 on two sides detect the position of the vibrator 31 deviating from a reference position, signals are sent out to enable the controller 57 to control and adjust the directions of three-phase circuits in the armature plate 54, three-phase coils on two sides are sequentially conducted to generate a changing magnetic field when the vibrator 31 moves, magnetic force is generated to react on the vibrator structure 3, and the vibrator 31 is driven to keep a 'c' -shaped track or a '8' -shaped track to move, so that stable current is generated.
A storage battery is installed in the base 1, one end of the storage battery is connected with a controller circuit, and the other end of the storage battery is connected with an output interface of a power generation device arranged on the rear side of the base and used for supplying power to an electric appliance. The surface of the base 1 is provided with symmetrically distributed notches which are arranged together with the passage openings of the supporting columns 52 and are used for connecting the circuits of the two side controllers 57. The controllers 57 in the stator winding structures 4 on the two sides are matched with each other, so that the vibrator structure 3 continuously and stably moves, and the current stable output of the generator is controlled and regulated. The storage battery in the base 1 is connected with the output interface of the power generation device arranged at the rear side and used for supplying power to the electric equipment. When the electric energy generated by the device is more, the storage battery converts the electric energy into chemical energy to be stored, and when the electric energy generated by the device is lower, the storage battery assists the device to supply power to the electric equipment.
The device adopts a permanent magnet disk structure to replace a metal spring used by a traditional flow-induced vibration power generation device, and provides restoring force for the vibrator, when ocean current flows through the surface of the vibrator, the cylindrical vibrator generates flow-induced vibration under the action of the ocean current to generate displacement, the permanent magnet disk at the end part of the vibrator deviates from a balance position along with the movement of the vibrator, and is adjusted by a Hall sensor and a controller, the permanent magnet disk of the double-side stator winding structure generates reaction force on the permanent magnet disk at the end part of the vibrator to enable the vibrator to always keep stable C-shaped track or 8-shaped track movement, and the vibrator generates reciprocating movement under the conditions of water flow force, elastic restoring force and self damping force. The vibrator reciprocates to generate a magnetic induction line, and the coil winding in the stator winding structure is continuously cut, so that current is generated to charge a storage battery arranged in the device. When the output interface at the rear side of the base is connected with electric equipment, a storage battery in the device discharges, and meanwhile, the vibrator still continues to reciprocate under the action of the ocean current permanent magnet to continuously generate current.
The invention is designed aiming at the power supply of small-sized marine equipment, and is mainly used for underwater power generation and power supply. Meanwhile, by combining the flow-induced vibration principle with the magnetic suspension technology, the mechanical structure of the device is simplified, ocean current energy can be captured better, higher power generation efficiency is obtained, and energy loss is reduced.

Claims (10)

1. The utility model provides a two-degree-of-freedom flow-induced vibration ocean current generator of magnetic suspension and electromagnetic power generation coupling, its characterized in that includes base (1), stator winding structure (4) are installed to the both ends symmetry of base (1), are equipped with oscillator structure (3) between the stator winding structure (4) of both sides, oscillator structure (3) install on base (1), stator winding structure (4) include stator disc (53), armature dish (54) are all installed to the one end that both sides stator disc (53) are close to each other, armature dish (54) surface annular array have a plurality of coil winding (55), oscillator structure (3) include oscillator (31), oscillator (31) both ends all ann have oscillator disc (32), oscillator disc (32) and stator disc (53) the magnetic pole repel each other.
2. The magnetic levitation and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator as claimed in claim 1, wherein the surface of the armature plate (54) is annularly arrayed with a plurality of winding supports, and each winding support is fixed with a coil winding (55).
3. The magnetic levitation and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator as claimed in claim 1, wherein the surface of the stator disk (53) is provided with a plurality of first grooves (56) along a circular array, and each first groove (56) is provided with a permanent magnet.
4. The magnetic levitation and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator as claimed in claim 1 or 2, wherein the armature plate (54) is provided with a hall sensor (58) and a controller (57), and the hall sensor (58) is connected with the controller (57).
5. The magnetic levitation and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator as claimed in claim 4, wherein the bottom of the stator magnetic disk (53) is installed at a corresponding notch of the base (1) through a support column (52), and a channel is arranged in the middle of the support column (52).
6. The magnetic suspension and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator according to claim 1, wherein the vibrator structure (3) is mounted on the base (1) through a rocker (2), the rocker (2) comprises a guide rod (22), one end of the guide rod (22) is rotatably connected with the vibrator (31), the other end of the guide rod is connected with a fixing rod (25) through a connecting rod (24), and the fixing rod (25) is mounted on the base (1).
7. The magnetic levitation and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator as claimed in claim 1 or 6, wherein the vibrator magnetic disk (32) is provided with a plurality of second grooves (33) in an annular array, and the second grooves (33) are provided with permanent magnets.
8. The magnetic levitation and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator as recited in claim 7, wherein a top cover (34) is mounted at the end of the vibrator magnetic disk (32).
9. The magnetic levitation and electromagnetic power coupling two-degree-of-freedom flow-induced vibration ocean current generator as claimed in claim 1 or 2, wherein the armature plate (54) and the stator magnetic plate (53) are coaxially mounted.
10. The magnetic suspension and electromagnetic power generation coupled two-degree-of-freedom flow-induced vibration ocean current generator as claimed in claim 1, wherein a storage battery is installed in the base (1), one end of the storage battery is connected with the controller, and the other end of the storage battery is connected with the power generation device.
CN202210404602.8A 2022-04-18 2022-04-18 Magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator Pending CN114825846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210404602.8A CN114825846A (en) 2022-04-18 2022-04-18 Magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210404602.8A CN114825846A (en) 2022-04-18 2022-04-18 Magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator

Publications (1)

Publication Number Publication Date
CN114825846A true CN114825846A (en) 2022-07-29

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CN202210404602.8A Pending CN114825846A (en) 2022-04-18 2022-04-18 Magnetic suspension and electromagnetic power generation coupled double-freedom-degree flow-induced vibration ocean current generator

Country Status (1)

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CN (1) CN114825846A (en)

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