CN111425354B - Vertical axis magnetic suspension tidal current energy power generation device and method combined with offshore horizontal axis wind turbine tower - Google Patents
Vertical axis magnetic suspension tidal current energy power generation device and method combined with offshore horizontal axis wind turbine tower Download PDFInfo
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- CN111425354B CN111425354B CN202010259642.9A CN202010259642A CN111425354B CN 111425354 B CN111425354 B CN 111425354B CN 202010259642 A CN202010259642 A CN 202010259642A CN 111425354 B CN111425354 B CN 111425354B
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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
- 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
- F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
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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
- 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
- F03B13/10—Submerged units incorporating electric generators or motors
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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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
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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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/121—Blades, their form or construction
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
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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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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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
- 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
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- 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
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- 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
- Y02E10/20—Hydro energy
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- 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- 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
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- 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
- Y02E10/727—Offshore wind turbines
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a vertical axis magnetic suspension tidal current energy power generation device and method combined with an offshore horizontal axis wind turbine tower, which comprises a central unit, a magnetic suspension rotor unit and a supporting unit, wherein the central unit comprises a horizontal axis wind turbine single-pile tower and a stator winding, the single-pile tower is fixed on a seabed, and the stator winding is sleeved on the outer wall of the single-pile tower; the magnetic suspension rotor unit is suspended around the annular stator winding under the action of the supporting unit; the supporting unit is a closed loop track with a T-shaped cross section, is correspondingly arranged below the magnetic suspension rotor unit, and is fixed on the seabed around the single-pile tower barrel. When the sea water rises and falls, the sea current pushes the blades to rotate, so that the permanent magnet magnetic poles in the rotor unit rotate. At the moment, the stator winding installed on the outer wall of the single-pile tower cylinder of the wind turbine converts tidal current kinetic energy into electric energy by cutting a rotating magnetic induction line.
Description
Technical Field
The invention belongs to the technical field of offshore tidal current power generation, and relates to a vertical axis magnetic suspension tidal current energy power generation device and method combined with an offshore horizontal axis wind turbine tower.
Background
Tidal current refers primarily to the regular flow of seawater that accompanies tidal phenomena, the main flow of which changes in magnitude and direction twice a day. Tidal current energy power generation is in shallow sea, straits, gulf or estuary, and directly utilizes high-speed water impact caused by rising and falling tide to drive a Tidal current Generator (TSG) with an impeller so as to convert kinetic energy of Tidal current into electric energy. Compared with the traditional barrage type tidal power generation, the tidal power generation avoids the high-cost construction of barrage construction, is flexible in development scale, has small influence on the natural ecology of the sea area, and is one of available energy conversion modes which are mature relative to wave, temperature difference and salt difference energy technologies and have the most commercial development value in the current ocean renewable energy development process.
The common tidal current generators are divided into two categories according to the installation mode of a unit: floating on the sea surface and fixed on the sea bottom. The sea surface floating type is that the power generation unit floats on the sea surface, and the lower part of the power generation unit is connected with the impeller rotor. For example, the invention patent with application number 201720888535.6, application date 2017.07.21 and publication date 2018.05.01 discloses a floating type tidal power generation device, the tidal power generation device is driven to float by a floating device with a buoy, and a direct-drive permanent magnet generator is matched with a lifting force type tidal turbine blade inserted into seawater to generate power, so that the floating type tidal power generation device is convenient to arrange and move in the sea surface space, and the maneuverability of the power generation device is improved. However, because the surface river basin of the sea surface is influenced by waves, the turbulence intensity is high, the power generation device is lack of stability, and the installation depth of the turbine rotor is shallow, so that ocean current which flows from a deeper position and tends to be stable cannot be utilized, and the power generation efficiency is to be further improved. In addition, the lift type blade is acted by centrifugal force in the rotating process, and the middle part of the lift type blade is easy to deform outwards, so that the blade is easy to damage, and certain influence is generated on energy conversion efficiency.
Another type is the fixed seabed type, i.e. the impeller rotor and the power generating unit are mounted on a pile fixed on the seabed, so that the turbine rotor for capturing tidal energy has a certain degree of freedom in the mounting depth. For example, the invention patent with application number 201510283603.1, application date 2015.05.29 and publication date 2018.10.28 discloses an underwater vertical shaft stable type generator, wherein the stability of the whole generator system is improved by arranging a foundation buried in a seabed and using an upright post fixed on a foundation platform as a rotating center of an underwater turbine rotor. The Darrieus blade arranged between the upper bearing and the lower bearing can capture the ocean current kinetic energy of the whole seabed depth from the sea level to the seabed, and the energy utilization rate of tidal current is improved, so that the single-machine power generation amount is improved. However, at the present stage, the single-machine power generation capacity of the tidal flow turbine generator is generally low, so that the number of the seabed pile foundations needs to be encrypted in a limited water area to improve the overall power generation capacity, and the complexity and the cost of seabed engineering are increased.
Offshore wind energy and tidal current energy resources in China are rich, and the available potential is huge. At present, the utilization mode of offshore energy sources generally tends to be single and specialized, namely in a specific sea area, only single-form energy conversion and utilization of wind energy or tidal current energy are provided. If the energy of the upper part and the lower part of the sea surface can be simultaneously utilized for generating electricity, and the generated electric energy is collected and utilized, the utilization rate of the offshore renewable energy sources is increased to a great extent.
In recent years, offshore wind power in China is undergoing a rapid development period, the installed capacity of the offshore wind power is rapidly rising, and wind energy resources above the sea surface are gradually and fully utilized. Because the offshore wind farm is usually positioned in a shallow water area with medium depth (10-25 m), and a single-pile steel tube tower foundation is usually adopted, if the existing equipment of the offshore wind farm can be fully utilized to install the tidal current generator on the single-pile tower of the horizontal shaft wind turbine, the engineering construction cost of the traditional tidal current power generation device can be greatly reduced, the energy utilization rate is improved, and the integral generated energy in a specific sea area is increased.
Disclosure of Invention
The invention aims to provide a vertical axis magnetic suspension tidal current energy power generation device and method combined with an offshore horizontal axis wind turbine tower, and solves the problem of how to fully utilize the existing offshore wind power plant equipment and install a tidal current generator, so that the comprehensive energy utilization rate of the whole field is improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a vertical axis magnetic suspension tidal current energy power generation device combined with an offshore horizontal axis wind turbine tower, which comprises a central unit, a magnetic suspension rotor unit and a supporting unit, wherein the magnetic suspension rotor unit is suspended around the central unit under the action of the supporting unit;
the central unit comprises a single-pile tower drum which is fixed on the seabed; the single-pile tower barrel is sleeved with a stator winding;
the magnetic suspension rotor unit is sleeved on the stator winding in a surrounding manner and is suspended above the supporting unit;
the supporting unit is sleeved on the single-pile tower drum in a surrounding mode, one end of the supporting unit is arranged at the bottom of the magnetic suspension rotor unit, and the other end of the supporting unit is fixed on the seabed.
Preferably, the magnetic suspension rotor unit comprises an annular permanent magnet, a resistance type Savonius blade and a rotor bogie, wherein the annular permanent magnet is arranged on the inner side wall of the upper end of the rotor bogie; the resistance type Savonius blades are arranged on the outer side wall of the upper end of the rotor bogie; the rotor bogie is sleeved on the stator winding in a surrounding manner; the bottom of the rotor bogie is provided with a T-shaped groove, and the T-shaped groove is arranged along the circumferential direction; the support unit is arranged in the T-shaped groove.
Preferably, two side walls of the large end of the T-shaped groove are respectively provided with an annular guide magnet; and the annular guide magnets are subjected to the same polarity and mutual repulsion by the annular guide coils under the condition that the annular guide coils on the supporting unit are electrified, so that a horizontal guide mechanism is formed.
Preferably, two side walls of the small end of the T-shaped groove are respectively provided with an annular suspension magnet; the annular suspension magnet is different in polarity from the annular suspension coil under the condition that the annular suspension coil on the supporting unit is electrified, so that the whole rotor unit receives vertical and upward attraction force, and a magnetic suspension mechanism is formed by overcoming the self gravity.
Preferably, the supporting unit further comprises a closed-loop track, and the longitudinal section of the closed-loop track is of a T-shaped structure; the closed-loop track is sleeved on the single-pile tower cylinder in a surrounding manner; the big end of the T-shaped closed loop track is correspondingly arranged in a T-shaped groove at the bottom of the magnetic suspension rotor unit, and the small end of the T-shaped closed loop track is fixed on the seabed; two annular suspension coils are arranged at the bottom of the large end of the T-shaped closed-loop track; and the annular suspension coil is different in polarity from the annular suspension magnet on the magnetic suspension rotor unit under the condition of electrifying to form a magnetic suspension mechanism.
Preferably, two side walls of the large end of the T-shaped closed loop track are respectively provided with an annular guide coil, and the annular guide coils have the same polarity as the annular guide magnets on the magnetic suspension rotor unit under the condition of power-on, and repel each other, so as to form a horizontal guide mechanism.
A vertical axis magnetic suspension tidal current energy power generation method combined with an offshore horizontal axis wind turbine tower comprises the following steps of:
when the sea water rises or falls, the magnetic suspension rotor unit is driven by the sea tide to rotate, so that the magnetic suspension rotor unit rotates around the single-pile tower cylinder of the central unit, the stator winding fixed on the outer wall of the single-pile tower cylinder generates current by cutting the rotating magnetic induction lines, and the tidal current kinetic energy is converted into electric energy.
Preferably, the resistance type Savonius blades mounted on the outer wall of the rotor bogie are rotated by the push of the sea tide, so that the annular permanent magnet mounted on the inner wall of the rotor bogie rotates around the single-pile tower of the central unit, and the stator winding fixed on the outer wall of the single-pile tower generates current by cutting the rotating magnetic induction lines, thereby converting tidal current kinetic energy into electric energy.
Preferably, direct current is conducted into the annular suspension coil, the magnetic pole generated by the annular suspension coil is opposite to the polarity of the annular suspension magnet, the magnetic suspension rotor unit is attracted vertically upwards, and the magnetic suspension rotor unit is in a suspension state by overcoming the gravity of the magnetic suspension rotor unit;
meanwhile, direct current is conducted into the annular guide coil, magnetic poles generated by the annular guide coil are the same as those of the annular guide magnet, mutual repulsion is generated, and horizontal guide of the magnetic suspension rotor unit is controlled by adjusting the current.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a vertical axis magnetic suspension tidal current energy power generation device and method combined with an offshore horizontal axis wind turbine tower.
Furthermore, the supporting structure among the magnetic suspension rotor unit, the supporting unit and the central unit is free of contact, abrasion and lubrication: when the magnetic suspension rotor rotates, the magnetic suspension rotor is in a suspension state, the relative motion surfaces are not in contact with each other, mechanical friction and contact fatigue are not generated, mechanical motion resistance is greatly reduced, and the problems of component loss and replacement are solved; meanwhile, a series of devices such as a lubricating system and the like are omitted.
Furthermore, the annular suspension coil is matched with the annular suspension magnet, so that the magnetic suspension rotor unit is suspended above the supporting unit against the self gravity.
Furthermore, the annular guide magnet is matched with the annular guide coil, so that a horizontal guide effect is generated on the magnetic suspension rotor unit.
Furthermore, the resistance type Savonius blades, namely the vertical axis blades can capture the incoming tidal current from any direction, a complex yaw water alignment device is not needed, and the whole structural design is simplified.
Furthermore, a non-cantilever type blade supporting structure is adopted, so that large bending moment generated on the blade due to gravity and hydrodynamic force is reduced, the influence on the structural strength of the blade is small, and the fracture accident rate of the blade can be effectively reduced.
Drawings
FIG. 1 is a schematic view of the central longitudinal section of the overall structure of the present invention;
FIG. 2 is a schematic view of a central unit and a magnetically levitated rotor unit of the present invention;
FIG. 3 is a schematic view of a support unit of the present invention;
FIG. 4 is a flow chart of the present invention
The wind power generation system comprises a wind power generation machine cabin 1, an offshore horizontal axis wind turbine engine room 2, a horizontal axis wind turbine impeller 3, a single-pile tower barrel 4, a stator winding 5, an annular permanent magnet 6, a resistance type Savonius blade 7, a rotor bogie 8, an annular guide magnet 9, an annular suspension magnet 10, a closed-loop track 11, an annular suspension coil 12 and an annular guide coil.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the vertical axis magnetic suspension tidal current energy power generation device combined with the offshore horizontal axis wind turbine tower provided by the invention comprises a central unit, a magnetic suspension rotor unit and a support unit, wherein the magnetic suspension rotor unit is sleeved on the central unit without mechanical contact and is arranged in a suspension structure under the action of the support unit; the top end of the supporting unit is positioned at the bottom of the magnetic suspension rotor unit, and the bottom end of the supporting unit is fixed on the seabed.
On the basis of the existing offshore wind power generation system, the rotor unit is fixed in a magnetic suspension mode by the aid of the supporting unit, and power is generated by the aid of the magnetic suspension rotor unit and the stator winding sleeved on the periphery of the tower drum of the horizontal axis wind turbine, so that the offshore tidal current and the offshore wind power are generated together, and the comprehensive utilization rate of offshore energy is effectively improved.
The central unit comprises a single-pile tower drum 3 of a horizontal-axis wind turbine, and a stator winding 4 is sleeved on the single-pile tower drum 3.
The mono-pile tower 3 is fixed on the seabed.
As shown in fig. 2, the magnetic suspension rotor unit uses a rotor bogie 7 as a carrier, and comprises an annular permanent magnet 5, a resistance type Savonius blade 6, a guide magnet 8 and a suspension magnet 9, wherein the annular permanent magnet 5 is arranged on the inner wall of the upper end of the rotor bogie 7; the resistance type Savonius blades 6 are provided in plurality and arranged on the outer side wall of the rotor bogie 7 in the axial direction in a spiral structure.
And the rotor bogie 7 is sleeved around the stator winding 4 for a circle and is arranged in a suspension structure.
The bottom of the rotor bogie 7 is provided with T-shaped grooves which are arranged along the circumferential direction.
Two side walls of the large end of the T-shaped groove are respectively provided with an annular guide magnet 8; and two side walls of the small end of the T-shaped groove are provided with an annular suspension magnet 9.
As shown in fig. 3, the supporting unit includes a closed-loop track 10, a guide rail supporting coil 11 and a guide rail guiding coil 12, wherein a longitudinal section of the closed-loop track 10 is a T-shaped structure; the closed-loop track 10 is sleeved on the single-pile tower drum in a surrounding manner; the big end of the T-shaped closed loop track 10 is correspondingly arranged in the big end of a T-shaped groove formed in the bottom of the rotor bogie 7, and the bottom of the T-shaped closed loop track is fixed on the seabed.
Two side walls of the large end of the T-shaped closed-loop track 10 are respectively provided with an annular guide coil 12, and the annular guide coils 12 correspond to the annular guide magnets 8.
Two annular suspension coils 11 are arranged at the bottom of the large end of the T-shaped closed-loop track 10; the annular suspension coil 11 and the annular suspension magnet 9 correspond to each other.
The working process is as follows:
direct current is led into an annular suspension coil 11 sleeved on a closed-loop track 10 with a T-shaped cross section through a submarine cable to form a suspension electromagnetic coil, the magnetic poles of the coil are different in polarity from an annular suspension magnet 9 at the bottom of a rotor bogie 7, so that the whole rotor unit is attracted vertically upwards and is suspended on the closed-loop track 10 under the combined action of buoyancy of seawater and overcomes the gravity of the rotor unit.
Direct current is led into an annular guide coil 12 sleeved on the closed-loop track 10 through a submarine cable to form a guide electromagnetic coil, and the magnetic pole of the coil is the same as the polarity of an annular guide magnet 8 on the inner side of the rotor bogie 7 to form repulsive force. The degree of freedom of the rotor unit in the horizontal direction is controlled by adjusting the current, and the rotor unit is prevented from colliding with the supporting unit and the fixing unit.
As shown in fig. 4, when sea water rises and falls, sea current pushes the resistance type Savonius blades 6 on the outer wall of the rotor bogie 7, so as to drive the whole magnetic suspension rotor unit to rotate around the single-pile tower 3, the annular permanent magnet 5 mounted on the inner wall of the rotor bogie 7 rotates around the stator winding 4 attached to the outer wall of the single-pile tower, and the stator winding 4 generates current by cutting rotating magnetic induction lines, so that tidal current kinetic energy is converted into electric energy; at the moment, the horizontal axis wind turbine and the tidal current energy device form upper and lower bipolar independent power generation on the sea surface, and the power is output and merged into a power grid through a submarine cable.
The above description is only an instructive embodiment of the present invention, and the scope of the present invention is not limited thereto, and any replacement of the three main units by parts, which can be easily conceived by those skilled in the art within the technical scope of the present invention, should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A vertical axis magnetic suspension tidal current energy power generation device combined with an offshore horizontal axis wind turbine tower is characterized by comprising a central unit, a magnetic suspension rotor unit and a supporting unit, wherein the magnetic suspension rotor unit is suspended around the central unit under the action of the supporting unit;
the central unit comprises a single-pile tower drum (3), and the single-pile tower drum (3) is fixed on the seabed; the single-pile tower tube (3) is sleeved with a stator winding (4);
the magnetic suspension rotor unit is sleeved on the stator winding (4) in a surrounding manner and is suspended above the supporting unit;
the supporting unit is sleeved on the single-pile tower drum (3) in a surrounding mode, one end of the supporting unit is arranged at the bottom of the magnetic suspension rotor unit, and the other end of the supporting unit is fixed on the seabed;
the magnetic suspension rotor unit comprises an annular permanent magnet (5), a resistance type Savonius blade (6) and a rotor bogie (7), wherein the annular permanent magnet (5) is arranged on the inner side wall of the upper end of the rotor bogie (7); the resistance type Savonius blades (6) are arranged on the outer side wall of the upper end of the rotor bogie (7); the rotor bogie (7) is sleeved on the stator winding (4) in a surrounding manner; the bottom of the rotor bogie (7) is provided with a T-shaped groove, and the T-shaped groove is arranged along the circumferential direction; the support unit is arranged in the T-shaped groove.
2. The vertical axis magnetic levitation tidal current energy power generation device combined with the offshore horizontal axis wind turbine tower barrel according to claim 1, wherein two side walls at the large end of the T-shaped groove are provided with an annular guide magnet (8); when the annular guide coil (12) on the supporting unit is electrified, the annular guide magnet (8) has the same polarity as the annular guide coil (12) and repels each other to form a horizontal guide mechanism.
3. The vertical axis magnetic levitation tidal current energy power generation device combined with the offshore horizontal axis wind turbine tower barrel according to claim 1, wherein two side walls of the small end of the T-shaped groove are provided with an annular levitation magnet (9); the annular suspension magnet (9) is different in polarity from the annular suspension coil (11) under the condition that the annular suspension coil (11) on the supporting unit is electrified, so that the whole rotor unit receives vertical and upward attraction force, and a magnetic suspension mechanism is formed by overcoming the self gravity.
4. The vertical axis magnetic levitation tidal current energy power generation device combined with the offshore horizontal axis wind turbine tower of claim 1, characterized in that the support unit further comprises a closed loop rail (10), and the longitudinal section of the closed loop rail (10) is of a T-shaped structure; the closed-loop track (10) is sleeved on the single-pile tower barrel (3) in a surrounding manner; the big end of the T-shaped closed loop track (10) is correspondingly arranged in a T-shaped groove at the bottom of the magnetic suspension rotor unit, and the small end of the T-shaped closed loop track is fixed on the seabed; the bottom of the large end of the T-shaped closed loop track (10) is provided with two annular suspension coils (11); the annular suspension coil (11) is different in polarity from an annular suspension magnet (9) on the magnetic suspension rotor unit under the condition of being electrified, and a magnetic suspension mechanism is formed.
5. The vertical axis magnetic levitation tidal current energy power generation device combined with the offshore horizontal axis wind turbine tower barrel as claimed in claim 4, wherein two side walls of the large end of the T-shaped closed loop track (10) are respectively provided with an annular guide coil (12), and the annular guide coils (12) have the same polarity with the annular guide magnets (8) on the magnetic levitation rotor unit under the condition of being electrified and repel each other, so that a horizontal guide mechanism is formed.
6. A vertical axis magnetic suspension tidal current energy power generation method combined with an offshore horizontal axis wind turbine tower is characterized in that the vertical axis magnetic suspension tidal current energy power generation device combined with the offshore horizontal axis wind turbine tower based on any one of claims 1 to 5 comprises the following steps:
when the sea water rises or falls, the magnetic suspension rotor unit is driven by the sea tide to rotate, so that the magnetic suspension rotor unit rotates around the single-pile tower drum (3) of the central unit, and the stator winding (4) fixed on the outer wall of the single-pile tower drum (3) generates current by cutting rotating magnetic induction lines, thereby converting tidal current kinetic energy into electric energy.
7. The vertical axis magnetic levitation tidal current energy power generation method combined with the offshore horizontal axis wind turbine tower of claim 6, characterized in that the resistance type Savonius blades (6) installed on the outer wall of the rotor bogie (7) rotate under the push of sea tide, so that the annular permanent magnet (5) installed on the inner wall of the rotor bogie (7) rotates around the single-pile tower (3) of the central unit, and the stator winding (4) fixed on the outer wall of the single-pile tower (3) generates current by cutting the rotating magnetic induction lines, thereby converting tidal current kinetic energy into electric energy.
8. The vertical axis magnetic levitation tidal current energy power generation method combined with the offshore horizontal axis wind turbine tower as claimed in claim 6, wherein direct current is conducted to the annular levitation coil (11), the magnetic poles generated by the annular levitation coil (11) are opposite in polarity to the annular levitation magnets (9), the magnetic levitation rotor unit is subjected to an upward vertical attraction force, and the upward vertical attraction force enables the magnetic levitation rotor unit to be in a levitation state against the self gravity;
meanwhile, direct current is conducted into the annular guide coil (12), the magnetic poles generated by the annular guide coil (12) are the same as the magnetic poles of the annular guide magnet (8), mutual repulsion is generated, and the horizontal guide of the magnetic suspension rotor unit is controlled by adjusting the current.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010259642.9A CN111425354B (en) | 2020-04-03 | 2020-04-03 | Vertical axis magnetic suspension tidal current energy power generation device and method combined with offshore horizontal axis wind turbine tower |
| PCT/CN2020/115473 WO2021196531A1 (en) | 2020-04-03 | 2020-09-16 | Vertical axis magnetic suspension tidal stream energy power generation apparatus and method combined with offshore horizontal axis wind turbine tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111425354B (en) * | 2020-04-03 | 2021-06-08 | 西安热工研究院有限公司 | Vertical axis magnetic suspension tidal current energy power generation device and method combined with offshore horizontal axis wind turbine tower |
| CN112253399B (en) * | 2020-10-20 | 2022-03-15 | 山西天宝集团有限公司 | Anti-impact offshore wind power generation equipment |
| CN113719401B (en) * | 2021-09-08 | 2023-06-30 | 东北石油大学 | Vertical rotary impeller type ocean tidal current energy power generation device |
| CN115450820B (en) * | 2022-10-13 | 2024-09-13 | 上海能源科技发展有限公司 | Offshore wind power pile foundation scour prevention device and method considering wake effect |
| CN117145685B (en) * | 2023-10-24 | 2024-03-05 | 武汉理工大学三亚科教创新园 | Electromagnetic tuning wave energy conversion device for floating fan platform |
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| CN111425354B (en) * | 2020-04-03 | 2021-06-08 | 西安热工研究院有限公司 | Vertical axis magnetic suspension tidal current energy power generation device and method combined with offshore horizontal axis wind turbine tower |
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| KR20110010479A (en) * | 2009-07-24 | 2011-02-01 | 김형진 | A power generation machine structure using water wheel |
| CN105257460A (en) * | 2014-04-24 | 2016-01-20 | 南通大学 | Modularized multiphase ocean current generator unit provided with fault tolerant structures mounted in phase staggering manner |
| CN108700044A (en) * | 2016-02-15 | 2018-10-23 | 尼欧瑞爱普有限公司 | Energy accumulation device for fly wheel and its application method |
| CN206917804U (en) * | 2017-06-07 | 2018-01-23 | 曲阜师范大学 | A kind of vertical axis suspension permanent magnet wind-driven generator |
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