CN218376720U

CN218376720U - Novel wind power generation device of relative rotation double-impeller yaw-free motor

Info

Publication number: CN218376720U
Application number: CN202221503319.2U
Authority: CN
Inventors: 薛宇; 王文杰; 薛磊; 赵立业; 王军栋
Original assignee: Ocean University of China
Current assignee: Ocean University of China
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2023-01-24
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses a novel wind power generation set of relative rotation bilobed wheel does not have yaw motor, include: the system comprises a foundation, a tower column, a Y-shaped supporting structure, a yawing rotating mechanism, two impellers arranged in an upwind direction or a downwind direction and two engine rooms; the tower column is arranged on the foundation, and the Y-shaped supporting structure is arranged at the top end of the tower column; the yawing rotating mechanism is arranged at the bottom end of the Y-shaped supporting structure and can drive the Y-shaped supporting structure to rotate by controlling the thrust of the double impellers; the two engine rooms are respectively arranged at the top ends of the Y-shaped supporting structures, the output end of each engine room is provided with an impeller, and the rotation directions of the two impellers are opposite; the Y-shaped supporting structure comprises a vertically arranged tower main rod, two sides of the top of the tower main rod protrude outwards to form two structural beams, and the tops of the two structural beams are connected through a balance steel cable. The utility model discloses be equipped with two energy capture mechanisms, power is big, efficient, the focus is low, with low costs, easily installation and fortune dimension.

Description

Novel wind power generation device of relative rotation double-impeller yaw-free motor

Technical Field

The utility model relates to a wind power generation technical field especially relates to a novel wind power generation set of relative rotation bilobed wheel no yaw motor.

Background

China is rich in wind energy resources, and the wind energy storage capacity capable of being developed and utilized is about 10 hundred million kW, wherein the wind energy storage capacity on land is about 2.53 hundred million kW (data calculation of 10m height above the ground), and the wind energy storage capacity capable of being developed and utilized on the sea is about 7.5 hundred million kW, and the total is 10 hundred million kW. While the nationwide power installation by the end of 2003 is about 5.67 hundred million kW.

Wind is one of nuisanceless energy sources. Moreover, it is inexhaustible. The wind power generation device is very suitable for and can be used for generating electricity by utilizing wind power according to local conditions in coastal islands, grassland pasturing areas, mountain areas and plateau areas with water shortage, fuel shortage and inconvenient traffic. Offshore wind power is an important field of renewable energy development, is an important force for promoting wind power technical progress and industry upgrading, and is an important measure for promoting energy structure adjustment. China has abundant offshore wind energy resources, accelerates the construction of offshore wind power projects, and has important significance for promoting the treatment of atmospheric haze, adjusting energy structures and changing economic development modes in coastal areas

An impeller of the wind generating set is connected with a main shaft and drives a generator rotor through a gear box, the main shaft is connected with a cabin through a bearing and a base, and a tower is connected with the cabin and a foundation platform. The yaw movement of the wind generating set refers to the movement of the cabin of the wind generating set around the direction vertical to the base platform, and the direction of the impeller of the wind generating set relative to the wind speed can be changed by controlling the yaw movement of the wind generating set. Generally, the smaller the angle of the impeller of the wind generating set relative to the wind speed, the larger the power generation of the wind generating set. The aim of yaw control of the wind generating set is to reduce the angle of an impeller relative to the wind speed as much as possible. The conventional yaw control is to adopt a yaw motor to drive the yaw movement process, and set the start and stop of the yaw motor according to wind direction information measured by a wind direction sensor, so as to adjust the angle of an impeller relative to the wind speed.

The existing wind power generation device adopts a single impeller to drive a single generator to generate power, and has low power and low wind energy utilization rate. Accordingly, a person skilled in the art provides a novel wind power generation device with relatively rotating dual-impeller non-yaw motor to solve the problems mentioned in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be equipped with two energy capture mechanisms, power is big, efficient, the focus is low, with low costs, easily installation and fortune dimension's a relative rotation bilobed wheel does not have yaw motor's novel wind power generation set.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model discloses a novel wind power generation set of no yaw motor of relative rotation bilobed wheel, the device includes:

a foundation, the foundation being a floating foundation or a fixed foundation;

a tower column disposed on a foundation;

the Y-shaped supporting structure is arranged at the top end of the tower column;

the yawing rotating mechanism is arranged at the bottom end of the Y-shaped supporting structure and can drive the Y-shaped supporting structure to rotate;

the two engine rooms are respectively arranged at the top end of the Y-shaped supporting structure, the output end of each engine room is provided with an impeller, the rotating directions of the impellers on the two engine rooms are opposite, the two impellers are arranged on one side of the Y-shaped supporting structure, namely in the upwind direction or the downwind direction of the Y-shaped supporting structure, when the two impellers are arranged in the upwind direction, the two impellers are arranged on the front side of the Y-shaped supporting structure, and wind firstly blows the two impellers; when the two blades 1 are positioned in the downwind direction, the two blades are arranged on the rear side of the Y-shaped supporting structure, and wind firstly blows the Y-shaped supporting structure;

y type bearing structure includes the pylon mobile jib of vertical setting, the outside protrusion in top both sides of pylon mobile jib forms two structural beams, two the top of structural beam is through balanced steel cable connection.

Further, the connection of the balancing wire rope to the structural beam is located at a quarter of the structural beam near the top end of the structural beam.

Further, the distance between the two engine rooms is larger than 1.7 times of the length of the blades on the impeller.

Further, the tower main rod and the two structural beams are of an integrally formed structure.

Furthermore, operation and maintenance escalators are arranged on the side faces, close to each other, of the two structural beams.

Furthermore, the top end of the operation and maintenance escalator is arranged close to the cabin door of the corresponding cabin.

Further, the basis includes three base, and is three the bottom of base connects gradually through three first crossbeam, and is three the top of base all sets up the mount pad, and is three the top of mount pad connects gradually through three second crossbeam, connect through the sloping between the bottom of mount pad and the two first crossbeams that the base that corresponds links to each other.

Furthermore, the three first cross beams and the three bases are connected to form an equilateral triangle structure.

Furthermore, the three second cross beams and the three mounting seats are connected to form an equilateral triangle structure.

In the technical solution, the utility model provides a pair of no yaw motor's of relative rotation bilobed wheel novel wind power generation set has following beneficial effect:

1. the integral strength of the Y-shaped supporting structure can be improved by adopting the balance steel cables, and the balance steel cables can offset the force generated by the movement of the impellers on the two engine rooms to generate the distance, so that the service life of the system is ensured;

2. the Y-shaped supporting structure can be driven to rotate by the yaw rotating mechanism, so that the direction of the impeller is changed, the impeller is perpendicular to the wind direction, and the generating capacity is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic structural view of a novel wind power generation device of a relatively rotating twin-impeller yaw-free motor according to an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

fig. 4 is a top view of fig. 1.

Description of reference numerals:

10. a foundation; 11. a base; 12. a first cross member; 13. a mounting seat; 14. a second cross member; 15. An oblique beam;

20. a tower column;

30. a Y-shaped support structure; 31. a tower main rod; 32. a structural beam; 33. balancing the steel cable; 34. an operation and maintenance staircase;

40. a yaw rotation mechanism;

50. a nacelle; 51. an impeller; 52. an aircraft door.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in FIGS. 1-4;

the embodiment of the utility model provides a novel wind power generation set of no yaw motor of relative rotation bilobed wheel, the device includes:

a foundation 10, wherein the foundation 10 is a floating foundation or a fixed foundation, namely can float on the sea and can also be fixed on the land;

the tower column 20 is installed on the foundation 10 through bolts;

a Y-shaped support structure 30, wherein the Y-shaped support structure 30 is arranged at the top end of the tower column 20;

the yaw rotating mechanism 40 is arranged at the bottom end of the Y-shaped supporting structure 30, the yaw rotating mechanism 40 can drive the Y-shaped supporting structure 30 to rotate, the yaw rotating mechanism 40 is a yaw rotating shaft, and the control equipment receives information output control instructions sent by the wind direction sensor, controls the thrust of the double impellers 51 and further drives the yaw rotating shaft to rotate;

two nacelles 50, wherein the two nacelles 50 are respectively mounted at the top end of the Y-shaped supporting structure 30, the output end of each nacelle 50 is provided with an impeller 51, the rotating directions of the impellers 51 on the two nacelles 50 are opposite, and each impeller 51 on each nacelle 50 is provided with three blades; the two impellers 51 are arranged on one side of the Y-shaped supporting structure 30, namely, in the upwind direction or the downwind direction of the Y-shaped supporting structure 30, and when the two impellers 51 are arranged in the upwind direction, the two impellers 51 are arranged on the front side of the Y-shaped supporting structure 30, and wind firstly blows to the two impellers 51; when the two impellers 51 are positioned in the downwind direction, the two impellers are arranged on the rear side of the Y-shaped supporting structure 30, wind firstly blows the Y-shaped supporting structure 30, and the whole structure is safe and low in cost;

y type bearing structure 30 includes the tower mobile jib 31 of vertical setting, the outside protrusion in top both sides of tower mobile jib 31 forms two structural beams 32, two structural beam 32's top is connected through balanced steel cable 33, and balanced steel cable 33 can increase Y type bearing structure 30's bulk strength, and balanced steel cable 33 can offset the impeller 51 motion on two cabins 50 and produce the power of keeping away from, guarantees that this application provides the life of this application.

The present application is able to control the yaw of both impellers by controlling the thrust of the impeller 51, which is prior art. Avoiding the need to install a yaw motor for each impeller on the nacelle 50 increases the cost of use.

The connection of the balancing cables 33 to the structural beam 32 is located at a quarter of the structural beam 32 near its top end to better counteract the force generated by the movement of the impellers 51 on both nacelles 50.

The distance between the two engine rooms 50 is larger than 1.7 times of the length of the blades on the impeller 51, so that the condition that the impellers 51 on the two engine rooms 50 collide during working is avoided.

The tower main rod 31 and the two structural beams 32 are integrally formed, so that the integral rigidity of the Y-shaped supporting structure 30 is effectively ensured.

The two structural beams 32 are provided with operation and maintenance stairs 34 on the sides close to each other. The top end of the operation and maintenance escalator 34 is arranged close to the cabin door 52 of the corresponding cabin 50, so that climbing maintenance is facilitated.

Basis 10 includes three base 11, and is three the bottom of base 11 connects gradually through three first crossbeam 12, and is three the top of base 11 all sets up mount pad 13, and is three the top of mount pad 13 connects gradually through three second crossbeam 14, connect through sloping 15 between two first crossbeams 12 that the bottom of mount pad 13 and the base 11 that corresponds link to each other. The above-mentioned connection in proper order has formed stable triangle-shaped structure, and the column tower 20 can be according to the selection and pass through the bolt fastening on corresponding mount pad 13, and this triangle-shaped structure's setting can need not to increase the counter weight simultaneously, reduces the cost.

The three first beams 12 and the three bases 11 are connected to form an equilateral triangle structure. The three second beams 14 and the three mounting seats 13 are connected to form an equilateral triangle structure, and the upper and lower equilateral triangle structures make the foundation 10 more stable.

The device can be suitable for 20 megawatt-level novel offshore wind power generation, has the potential of high efficiency, light unit power weight, low gravity center, low cost and the like, the maximum wind energy utilization coefficient Cp is not less than 0.52, the comprehensive utilization efficiency of the energy of the whole machine is not less than 46%, the total weight of the wind wheel and the engine room is not more than 45 tons per megawatt, and the service life is not less than 25 years.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive on the scope of the appended claims.

Claims

1. A novel wind power generation device of a relative rotation double-impeller non-yaw motor is characterized by comprising:

a foundation (10), said foundation (10) being a floating foundation or a fixed foundation;

a tower column (20), the tower column (20) being disposed on a foundation (10);

the Y-shaped supporting structure (30), the Y-shaped supporting structure (30) is installed at the top end of the tower column (20);

the yaw rotating mechanism (40), the yaw rotating mechanism (40) is arranged at the bottom end of the Y-shaped supporting structure (30), and the yaw rotating mechanism (40) can drive the Y-shaped supporting structure (30) to rotate;

the two engine cabins (50) are respectively arranged at the top ends of the Y-shaped supporting structures (30), the output end of each engine cabin (50) is provided with an impeller (51), and the rotating directions of the impellers (51) on the two engine cabins (50) are opposite;

y type bearing structure (30) are including vertical tower mobile jib (31) that sets up, the outside protrusion in top both sides of tower mobile jib (31) forms two structural beam (32), two the top of structural beam (32) is connected through balanced steel cable (33).

2. A new wind power plant of relatively rotating twin-impeller yawless motor according to claim 1, characterised in that the connection of the balancing wire rope (33) to the structural beam (32) is located in a quarter of the structural beam (32) near its top end.

3. A new wind power plant of a relatively rotating twin-impeller yawless motor according to claim 1, characterised in that the distance between two said nacelles (50) is more than 1.7 times the length of the blades on the impeller (51).

4. A new wind power generation device of relatively rotating double-impeller yaw-less motor in claim 1, wherein two impellers (51) are arranged on one side of the Y-shaped supporting structure (30), when the two impellers (51) are located in the upwind direction, they are arranged on the front side of the Y-shaped supporting structure (30), and wind firstly blows to the two impellers (51); when the two impellers (51) are positioned in the downwind direction and are arranged at the rear side of the Y-shaped supporting structure (30), wind firstly blows to the Y-shaped supporting structure (30).

5. The new wind power generation device of a relatively rotating twin-impeller yaw-less motor of claim 1, characterized in that the tower main rod (31) and two structural beams (32) are an integrated structure.

6. The novel wind power generation device of a relatively rotating double-impeller yaw-free motor according to claim 5, characterized in that the side surfaces of the two structural beams (32) close to each other are provided with operation and maintenance escalators (34).

7. The new wind power generation device of relatively rotating twin-impeller non-yaw motor according to claim 6, characterized in that the top end of the operation and maintenance escalator (34) is disposed near the cabin door (52) of the corresponding cabin (50).

8. The novel wind power generation device of a relatively rotating double-impeller yaw-free motor according to claim 1, wherein the foundation (10) comprises three bases (11), the bottoms of the three bases (11) are sequentially connected through three first cross beams (12), the top ends of the three bases (11) are respectively provided with a mounting seat (13), the tops of the three mounting seats (13) are sequentially connected through three second cross beams (14), and the bottoms of the mounting seats (13) are connected with two first cross beams (12) connected with the corresponding bases (11) through oblique beams (15).

9. The new wind power generation device of a relatively rotating double-impeller yaw-less motor according to claim 8, characterized in that three first cross beams (12) are connected with three bases (11) to form an equilateral triangle structure.

10. The novel wind power generation device of a relatively rotating double-impeller yaw-less motor as claimed in claim 8, wherein three second cross beams (14) are connected with three mounting seats (13) to form an equilateral triangle structure.