WO2010140848A2 - Wind turbine with generator fixed on top of tower - Google Patents

Wind turbine with generator fixed on top of tower Download PDF

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Publication number
WO2010140848A2
WO2010140848A2 PCT/KR2010/003568 KR2010003568W WO2010140848A2 WO 2010140848 A2 WO2010140848 A2 WO 2010140848A2 KR 2010003568 W KR2010003568 W KR 2010003568W WO 2010140848 A2 WO2010140848 A2 WO 2010140848A2
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WO
WIPO (PCT)
Prior art keywords
generator
tower
rotor
coupled
hub
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Application number
PCT/KR2010/003568
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French (fr)
Korean (ko)
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WO2010140848A3 (en
Inventor
김두훈
류지윤
박진일
방조혁
황진수
서동진
Original Assignee
유니슨 주식회사
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Application filed by 유니슨 주식회사 filed Critical 유니슨 주식회사
Publication of WO2010140848A2 publication Critical patent/WO2010140848A2/en
Publication of WO2010140848A3 publication Critical patent/WO2010140848A3/en

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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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/20—Gearless transmission, i.e. direct-drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Definitions

  • the present invention relates to a wind power generator, and more particularly, to a wind power generator having a tower-top fixed generator to minimize the weight of the generator while at the same time the load of the generator is transmitted vertically to the tower.
  • a wind power generator generates electric power by using the power of a rotor rotated by natural wind, and typically increases the rotation speed of the rotor and the rotor rotated by the force of wind on the top of the tower spaced from the ground. It is coupled to the gearbox and the gearbox to rotate the generator to produce power is sequentially combined.
  • Korean Patent No. 695012 filed by the applicant of the present application on March 24, 2006, has proposed a structure of a wind power generator excluding a speed increaser, which is fixed from the ground as shown in FIG.
  • the tower 100 is installed at a height, and the rotor 200 having a plurality of rotor blades 202 fixed to the hub 201 is installed at the upper side of the tower 100, and the rear of the rotor 200 is installed.
  • the rotating shaft 300 which is coupled and rotated of the tower 100 is supported by the bearing 301, and the generator 400 is coupled to the rear end of the rotating shaft 300.
  • the generator 400 includes a rotating plate 402 coupled to the rotating shaft 300 to rotate in an inner space of the housing 401 formed in a cylindrical shape, and rotates around the outer end of the rotating plate 402.
  • the electrons 403 are coupled, and the rotor 403 and the stator 404 causing electromagnetic induction are coupled along the inner surface of the housing 401.
  • the present invention has been made in order to solve the conventional problems as described above, the object is to provide a wind power generator so that the weight of the generator is minimized at the same time the load of the generator is transmitted vertically to the tower.
  • an object of the present invention is to enable the operator to easily access to the hub side through the generator.
  • the present invention is a hub is formed in the center, the rotating shaft protrudes to the rear side of the hub, a plurality of rotor blades coupled to the outer side of the hub;
  • a housing disposed at an upper end of the tower toward the rear side of the rotor, the housing having an axial length smaller than the diameter of the tower and having a stator coupled to an inner side thereof, and rotatably coupled to an inner side of the housing to rotate by rotation of the rotor;
  • a generator configured to operate with a rotor to produce power; It is fixed to the top of the tower, the support bracket for supporting the bottom and rear of the generator; is configured to include.
  • the central portion of the rotating shaft penetrates and is formed in a cylindrical communication with the hub, the central portion of the rotor is coupled to the rotating shaft, both ends of the cylindrical coupling shaft protruding toward the front of the housing is formed It is done.
  • a through hole is formed in the front and rear of the housing so that the rotating shaft is inserted, the inner surface of the through hole is provided with a bearing for supporting the rotating shaft, the rotating shaft is inserted into the central portion of the rotor is coupled Coupling hole is formed, the rotating shaft, characterized in that the diameter of the front side to be coupled to the hub is formed gradually larger than the diameter of the opposite side.
  • 1 is a longitudinal sectional view showing an embodiment of the present invention.
  • Figure 2 is a longitudinal sectional view showing another embodiment of the present invention.
  • Figure 3 is a longitudinal sectional view showing an example of a conventional wind power generator.
  • FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, as shown in the present invention is a rotor 20 is not coupled between the rotor 20 and the generator 30 is rotated by the force of the wind rotor 20
  • the wind turbine is configured to directly connect the rotation of the generator to the generator 30.
  • the generator 30 having a shaft length narrower than the diameter of the tower 10 toward the rear side of the rotor 20 is the top of the tower 10. Is coupled to, but relates to a wind power generator to be coupled to the support bracket 40 for supporting the generator 30 separately.
  • the tower 10 is a structure for supporting various parts of the wind turbine at a position spaced from the ground, to be formed of a metal rod having rigidity, and to allow the rotor 20 to be disposed at a high position where the wind speed and the wind volume are high. To be perpendicular to the ground.
  • the rotor 20 rotates and operates the rotor 33 while being rotated by the force of the wind, so that the hub 21 having the same center as the above-described rotor 33 is formed in the center portion, and the hub Rotating shaft 22 is protruded to the rear side of the (21), and coupled to the plurality of rotor blades 23 to the outside of the hub 21 by rotating the rotor blades 23 by the force of the wind hub 21 ) Rotates so that the rotary shaft 22 coupled thereto is finally rotated.
  • the generator 30 is to be rotated by the rotation of the rotor 20 to produce power, to be disposed on the top of the tower 10 to the rear side of the rotor 20, the diameter of the tower 10
  • the housing 31 is formed in a cylindrical shape having a smaller axial length, and a rotor 33 rotatably coupled to the inside of the housing 31 and coupled to the rotor 20 to rotate.
  • stator 32 of the generator 30 is fixedly disposed on the inner surface of the housing 31, so that smooth power generation by electromagnetic induction with the rotor 33 is achieved, and the housing 31. It is preferable to allow a plurality of bearings 312 for supporting the rotating shaft 22 inwardly.
  • the support bracket 40 is to ensure that the generator 30 is firmly fixed to the tower 10 and at the same time to ensure that the load of the generator 30 and the rotor 20 is stably transmitted to the tower 10, the rear
  • the side protrudes obliquely upward to form a rear load support part 41 for supporting the rear surface of the housing 31, and the lower surface is fixed to the generator 30 and the tower 10, respectively, so that the support bracket 40 is a generator ( 30) to support the bottom and back at the same time.
  • the lower side of the support bracket 40 is fixed to the lower surface of the housing 31 to form an inclined support portion 42 so that the rotary shaft 22 is inclined upward in the direction of the rotor 20 to the front of the rotor 20 It is preferable to allow the load of the rotor 20 to be transferred to the support bracket 40 while preventing the rotation shaft 22 from being separated from the generator 30 by the side load.
  • the overall volume of the generator 30 is reduced to minimize the weight of the wind turbine, as well as the majority of the load of the rotor 20 and the generator 30 is transmitted directly to the tower 10, the rotor 20 And it is to be able to reduce the damage of the generator (30).
  • rotation shaft 22 is formed in a cylindrical shape through which the center portion is communicated with the hub 21, and to the front side of the generator 30 to be coupled to the rotation shaft 22 in the central portion of the rotor 33.
  • the protruding cylindrical coupling shaft 332 is formed.
  • the diameter of the rotating shaft 22 is maximized to minimize the weight of the rotating shaft 22 while maximizing the torsional rigidity of the rotating shaft 22, and the manager can freely move between the generator 30 and the hub 21. The move will make the maintenance and repair work of the wind turbine easier.
  • Figure 2 is a longitudinal cross-sectional view showing another embodiment of the present invention, in the present embodiment, the above-described rotary shaft 22 of the components of the first embodiment to be formed of a metal rod having a rigid, etc., the housing 31
  • the front and rear of the) is formed with a through hole 311 through which the rotary shaft 22 is inserted, and a bearing 312 is provided on the inner side of the through hole 311 to support the rotary shaft 22.
  • the rotary shaft 22 is inserted into the central portion of the rotor 33 described above so that the tubular coupling hole 331 to be coupled is formed.
  • the front side and the rear side of the rotary shaft 22 are simultaneously supported by the housing 31, thereby preventing the vibration generated during the rotation of the rotary shaft 22, as well as more effectively preventing the bending of the rotary shaft 22. And, it is possible to minimize the diameter of the bearing 312 is to be easily maintained and repair of the wind turbine.
  • the rotating shaft 22 is formed so that the diameter of the front side connected to the hub 21 is gradually larger than the opposite end, the rotary shaft 22 when the rotor 20 is pushed toward the generator 30 while blowing a strong wind. It is desirable that the travel distance of is limited so that stable power is produced.
  • the present invention provides a wind power generator in which the weight of the generator is minimized at the same time as the load of the generator is vertically transmitted to the tower, thereby reducing damage to the tower and the generator due to the load of the generator, and installing and installing the generator. Maintenance has the effect of being simple.
  • the present invention is to form a rotating shaft in a cylindrical shape so that the operator can easily access to the hub side through the generator, it has the effect that the maintenance of the generator and the rotor becomes more simple.
  • the present invention is to form a through hole in the housing, so that the rotary shaft is inserted into the through hole so that the rigid coupling with the housing is made while the diameter of the bearing supporting the rotating shaft is made, the installation and disassembly and repair of the bearing is made easy The vibration generated during the operation of the rotor is reduced.
  • the generator can produce power more stably.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The present invention relates to a wind turbine with a generator fixed on top of a tower for transmitting the load of the generator to the tower vertically and simultaneously minimizing the weight of the generator, wherein the wind turbine with a generator fixed on top of a tower comprises a rotor having a hub formed in the center and a rotation shaft protruded from the back of the hub, and coupled with a plurality of rotor blades outside the hub; the generator for generating power and having a housing disposed on top of the tower behind the rotor, having an axial length smaller than the diameter of the tower, and coupled with a stator on the inner surface thereof, and a rotator rotatively coupled in the housing for rotating by the rotation of the rotor; and a supporting bracket fixed at the upper end of the tower for supporting the bottom surface and the rear surface of the generator. Therefore, damage to the tower and the generator due to the load of the generator can be reduced, and installation and maintenance of the generator can be simplified.

Description

타워 상부 고정형 발전기를 갖는 풍력발전기Wind generators with tower-mounted stationary generators
본 발명은 풍력발전기에 관한 것으로, 더욱 상세하게는 발전기의 하중이 타워에 수직으로 전달됨과 동시에 발전기의 중량이 최소화되도록 한 타워 상부 고정형 발전기를 갖는 풍력발전기에 관한 것이다.The present invention relates to a wind power generator, and more particularly, to a wind power generator having a tower-top fixed generator to minimize the weight of the generator while at the same time the load of the generator is transmitted vertically to the tower.
일반적으로, 풍력발전기는 자연의 바람에 의해서 회전되는 로터의 동력을 이용하여 전력을 생산하는 것으로서, 통상적으로 지면과 이격된 타워의 상단에 바람의 힘에 의해 회전되는 로터와 로터의 회전속도를 증가시키는 증속기 및 증속기에 결합되어 회전되면서 전력을 생산하는 발전기가 순차적으로 결합되어진다.In general, a wind power generator generates electric power by using the power of a rotor rotated by natural wind, and typically increases the rotation speed of the rotor and the rotor rotated by the force of wind on the top of the tower spaced from the ground. It is coupled to the gearbox and the gearbox to rotate the generator to produce power is sequentially combined.
하지만, 상기와 같이 증속기가 결합되는 경우에는 풍력발전기의 전체적인 구조가 복잡해져 제작 및 유지 보수가 힘들어질 뿐만 아니라, 풍력발전기의 중량이 증가되어 그에 따른 타워의 구조적인 강도 또한 증가되어야 하는 문제점이 있었다.However, when the speed increaser is coupled as described above, the overall structure of the wind power generator is complicated, making manufacturing and maintenance difficult, and the weight of the wind power generator is increased, thereby increasing the structural strength of the tower.
이러한 문제점을 해소하고자 본원 출원인에 의해 2006년 3월 24일 자로 출원되어 등록된 한국등록특허 제695012호에서는 증속기가 제외된 풍력발전기의 구조를 제안한 바 있는데, 도 5에 도시된 것과 같이 지면으로부터 일정 높이로 타워(100)가 설치되고, 상기 타워(100)의 상부측에 허브(201)를 중심으로 다수의 로터블레이드(202)가 고정된 로터(200)가 설치되며, 로터(200)의 후방 측으로는 타워(100)의 결합되어 회전되는 회전축(300)이 베어링(301)에 의해 지지되도록 하고, 회전축(300)의 후방 끝단에 발전기(400)를 결합하고 있다.In order to solve such a problem, Korean Patent No. 695012, filed by the applicant of the present application on March 24, 2006, has proposed a structure of a wind power generator excluding a speed increaser, which is fixed from the ground as shown in FIG. The tower 100 is installed at a height, and the rotor 200 having a plurality of rotor blades 202 fixed to the hub 201 is installed at the upper side of the tower 100, and the rear of the rotor 200 is installed. On the side, the rotating shaft 300 which is coupled and rotated of the tower 100 is supported by the bearing 301, and the generator 400 is coupled to the rear end of the rotating shaft 300.
또한, 상술한 발전기(400)는 원통형으로 형성된 하우징(401)의 내측 공간에 상기 회전축(300)과 결합되어 회전되는 회전판(402)을 구비하고, 상기 회전판(402)의 외측 끝단 둘레를 따라 회전자(403)가 결합되도록 하며, 하우징(401)의 내측면을 따라 상기 회전자(403)와 전자기 유도 현상을 일으키는 고정자(404)가 결합되도록 하고 있다.In addition, the generator 400 includes a rotating plate 402 coupled to the rotating shaft 300 to rotate in an inner space of the housing 401 formed in a cylindrical shape, and rotates around the outer end of the rotating plate 402. The electrons 403 are coupled, and the rotor 403 and the stator 404 causing electromagnetic induction are coupled along the inner surface of the housing 401.
하지만, 상기와 같이 회전축이 타워의 상단을 가로질러 결합된 경우에는 회전축의 길이가 타워의 직경 보다 길어짐에 따라 풍력발전기의 전체적인 중량이 증가될 뿐만 아니라, 회전축의 처짐 및 비틀림이 발생되는 문제점이 있었다.However, when the rotary shaft is coupled across the top of the tower as described above, as the length of the rotary shaft is longer than the diameter of the tower, the overall weight of the wind turbine is increased, and the deflection and torsion of the rotary shaft are caused. .
이에, 본 발명은 상기와 같은 종래의 제반 문제점을 해소하기 위하여 안출된 것으로, 그 목적은 발전기의 하중이 타워에 수직으로 전달됨과 동시에 발전기의 중량이 최소화되도록 한 풍력발전기를 제공함에 있다.Accordingly, the present invention has been made in order to solve the conventional problems as described above, the object is to provide a wind power generator so that the weight of the generator is minimized at the same time the load of the generator is transmitted vertically to the tower.
또한, 본 발명의 목적은 작업자가 발전기를 통해 허브 측으로 용이하게 접근할 수 있도록 함에 있다.In addition, an object of the present invention is to enable the operator to easily access to the hub side through the generator.
또한, 본 발명의 목적은 회전축의 굽힘 강성이 증대되도록 하고, 로터가 회전될 때 회전축이 후방으로 이동되는 것이 방지되도록 함과 동시에, 회전축을 지지하는 베어링의 직경이 작으면서도 하우징과의 견고한 결합이 이루어지도록 함에 있다.In addition, it is an object of the present invention to increase the bending rigidity of the rotating shaft, to prevent the rotating shaft from moving backwards when the rotor is rotated, and at the same time to ensure a tight coupling with the housing while the diameter of the bearing supporting the rotating shaft is small. To make it happen.
상기와 같은 목적을 달성하기 위하여, 본 발명은 중앙부에 허브가 형성되고, 상기 허브의 후방 측으로 회전축이 돌출되며, 상기 허브의 외측방으로 다수의 로터블레이드가 결합된 로터; 상기 로터의 후방측으로 타워의 상단에 배치되되, 상기 타워의 직경보다 작은 축방향 길이를 갖고 내측면에 고정자가 결합된 하우징과, 상기 하우징의 내측에 회전 가능하게 결합되어 상기 로터의 회전에 의해 회전 작동되는 회전자로 구성되어 전력을 생산하는 발전기; 상기 타워의 상단에 고정되고, 상기 발전기의 하면 및 후면을 지지하는 지지브래킷;을 포함하여 구성된다.In order to achieve the above object, the present invention is a hub is formed in the center, the rotating shaft protrudes to the rear side of the hub, a plurality of rotor blades coupled to the outer side of the hub; A housing disposed at an upper end of the tower toward the rear side of the rotor, the housing having an axial length smaller than the diameter of the tower and having a stator coupled to an inner side thereof, and rotatably coupled to an inner side of the housing to rotate by rotation of the rotor; A generator configured to operate with a rotor to produce power; It is fixed to the top of the tower, the support bracket for supporting the bottom and rear of the generator; is configured to include.
또한, 상기 회전축의 중앙부가 관통되어 상기 허브와 연통된 원통형으로 형성되고, 상기 회전자의 중앙부에 상기 회전축과 결합되며 양 단부가 개방되고 상기 하우징의 전면으로 돌출되는 원통형의 결합축이 형성된 것을 특징으로 한다.In addition, the central portion of the rotating shaft penetrates and is formed in a cylindrical communication with the hub, the central portion of the rotor is coupled to the rotating shaft, both ends of the cylindrical coupling shaft protruding toward the front of the housing is formed It is done.
또한, 상기 하우징의 전면 및 후면에 상기 회전축이 삽입되도록 관통된 관통공이 형성되고, 상기 관통공의 내측면에 상기 회전축을 지지하는 베어링이 구비되며, 상기 회전자의 중앙부에 상기 회전축이 삽입되어 결합되는 결합공이 형성되고, 상기 회전축은, 상기 허브와 결합되는 전방 측의 직경이 반대측의 직경 보다 점차 크게 형성된 것을 특징으로 한다.In addition, a through hole is formed in the front and rear of the housing so that the rotating shaft is inserted, the inner surface of the through hole is provided with a bearing for supporting the rotating shaft, the rotating shaft is inserted into the central portion of the rotor is coupled Coupling hole is formed, the rotating shaft, characterized in that the diameter of the front side to be coupled to the hub is formed gradually larger than the diameter of the opposite side.
도 1은 본 발명의 일 실시예를 보인 종단면도.1 is a longitudinal sectional view showing an embodiment of the present invention.
도 2는 본 발명의 다른 실시예를 보인 종단면도.Figure 2 is a longitudinal sectional view showing another embodiment of the present invention.
도 3은 종래 풍력발전기의 일 예를 보인 종단면도.Figure 3 is a longitudinal sectional view showing an example of a conventional wind power generator.
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참고로 하여 더욱 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
도 1은 본 발명의 일 실시예를 보인 종단면도로서, 도시된 것과 같이 본 발명은 바람의 힘에 의해 회전되는 로터(20)와 발전기(30) 사이에 별도의 증속기가 결합되지 않고 로터(20)의 회전이 직접 발전기(30)로 연결되도록 한 풍력발전기에 관한 것으로서, 특히 로터(20)의 후방 측으로 타워(10)의 직경보다 좁은 축 길이를 갖는 발전기(30)가 타워(10)의 상단에 결합되되, 발전기(30)를 지지하는 지지브래킷(40)이 별도로 결합되도록 한 풍력발전기에 관한 것이다.1 is a longitudinal cross-sectional view showing an embodiment of the present invention, as shown in the present invention is a rotor 20 is not coupled between the rotor 20 and the generator 30 is rotated by the force of the wind rotor 20 The wind turbine is configured to directly connect the rotation of the generator to the generator 30. In particular, the generator 30 having a shaft length narrower than the diameter of the tower 10 toward the rear side of the rotor 20 is the top of the tower 10. Is coupled to, but relates to a wind power generator to be coupled to the support bracket 40 for supporting the generator 30 separately.
상기 타워(10)는 풍력발전기의 각종 부품을 지면과 이격된 위치에서 지지하는 구조물로서, 강성을 갖는 금속봉재 등으로 형성되도록 하고, 풍속 및 풍량이 큰 높은 위치에서 로터(20)가 배치되도록 하기 위하여 지면과 수직으로 배치되도록 한다.The tower 10 is a structure for supporting various parts of the wind turbine at a position spaced from the ground, to be formed of a metal rod having rigidity, and to allow the rotor 20 to be disposed at a high position where the wind speed and the wind volume are high. To be perpendicular to the ground.
상기 로터(20)는 바람의 힘에 의해 회전되면서 상기 회전자(33)를 회전 작동시키는 것으로서, 중앙부에 상술한 회전자(33)와 동일 중심을 가지는 허브(21)가 형성되도록 하고, 상기 허브(21)의 후방측으로 회전축(22)이 돌출 결합되도록 하며, 상기 허브(21)의 외측으로 다수의 로터블레이드(23)를 결합하여 바람의 힘에 의해 로터블레이드(23)를 회전시키면 허브(21)가 회전되면서 최종적으로 이에 결합된 회전축(22)이 회전되도록 한다.The rotor 20 rotates and operates the rotor 33 while being rotated by the force of the wind, so that the hub 21 having the same center as the above-described rotor 33 is formed in the center portion, and the hub Rotating shaft 22 is protruded to the rear side of the (21), and coupled to the plurality of rotor blades 23 to the outside of the hub 21 by rotating the rotor blades 23 by the force of the wind hub 21 ) Rotates so that the rotary shaft 22 coupled thereto is finally rotated.
상기 발전기(30)는 상기 로터(20)의 회전에 의해 회전되면서 전력을 생산하는 것으로서, 상기 로터(20)의 후방측으로 상기 타워(10)의 상단에 배치되도록 하되, 상기 타워(10)의 직경보다 작은 축방향 길이를 갖는 원통형으로 형성된 하우징(31)과, 상기 하우징(31)의 내측에 회전 가능하게 결합되고 상기 로터(20)와 결합되어 회전되는 회전자(33)로 구성된다.The generator 30 is to be rotated by the rotation of the rotor 20 to produce power, to be disposed on the top of the tower 10 to the rear side of the rotor 20, the diameter of the tower 10 The housing 31 is formed in a cylindrical shape having a smaller axial length, and a rotor 33 rotatably coupled to the inside of the housing 31 and coupled to the rotor 20 to rotate.
이때, 상기 하우징(31)의 내측면에는 발전기(30)의 고정자(32)가 고정 배치되도록 함으로써, 회전자(33)와의 전자기 유도에 의한 원활한 전력 생산이 이루어지도록 하는 것이 바람직하며, 하우징(31)의 내측으로 회전축(22)을 지지하는 다수의 베어링(312)이 결합되도록 하는 것이 바람직하다.At this time, the stator 32 of the generator 30 is fixedly disposed on the inner surface of the housing 31, so that smooth power generation by electromagnetic induction with the rotor 33 is achieved, and the housing 31. It is preferable to allow a plurality of bearings 312 for supporting the rotating shaft 22 inwardly.
상기 지지브래킷(40)은 상기 발전기(30)가 타워(10)에 견고하게 고정되도록 함과 동시에 발전기(30) 및 로터(20)의 하중이 안정적으로 타워(10)로 전달되도록 하는 것으로서, 후방측이 상향 경사지게 돌출되어 하우징(31)의 후면을 지지하는 후방하중지지부(41)가 형성되도록 하고, 하면이 각각 발전기(30)와 타워(10)에 고정되도록 하여 지지브래킷(40)이 발전기(30)의 하면 및 후면을 동시에 지지하도록 한다.The support bracket 40 is to ensure that the generator 30 is firmly fixed to the tower 10 and at the same time to ensure that the load of the generator 30 and the rotor 20 is stably transmitted to the tower 10, the rear The side protrudes obliquely upward to form a rear load support part 41 for supporting the rear surface of the housing 31, and the lower surface is fixed to the generator 30 and the tower 10, respectively, so that the support bracket 40 is a generator ( 30) to support the bottom and back at the same time.
이때, 상기 하우징(31)의 하면에 고정되는 지지브래킷(40)의 하부측에는 회전축(22)이 로터(20) 방향으로 상향 경사지게 배치되도록 하는 경사지지부(42)를 형성하여 로터(20)의 전방 측 하중에 의해 회전축(22)이 발전기(30)에서 이탈되는 것이 방지되면서 로터(20)의 하중이 지지브래킷(40)으로 전달되도록 하는 것이 바람직하다.At this time, the lower side of the support bracket 40 is fixed to the lower surface of the housing 31 to form an inclined support portion 42 so that the rotary shaft 22 is inclined upward in the direction of the rotor 20 to the front of the rotor 20 It is preferable to allow the load of the rotor 20 to be transferred to the support bracket 40 while preventing the rotation shaft 22 from being separated from the generator 30 by the side load.
이에 따라, 발전기(30)의 전체적인 부피가 작아져 풍력발전기의 중량이 최소화될 뿐만 아니라, 로터(20) 및 발전기(30)의 하중의 대부분이 직접 타워(10)로 전달됨으로써, 로터(20) 및 발전기(30)의 손상을 줄일 수 있게 되는 것이다.Accordingly, the overall volume of the generator 30 is reduced to minimize the weight of the wind turbine, as well as the majority of the load of the rotor 20 and the generator 30 is transmitted directly to the tower 10, the rotor 20 And it is to be able to reduce the damage of the generator (30).
더불어, 상술한 회전축(22)은 중앙부가 관통되어 허브(21)와 연통되는 원통형으로 형성되도록 하고, 상기 회전자(33)의 중앙부에 상기 회전축(22)과 결합되도록 발전기(30)의 전방 측으로 돌출된 원통형의 결합축(332)이 형성되도록 한다.In addition, the above-described rotation shaft 22 is formed in a cylindrical shape through which the center portion is communicated with the hub 21, and to the front side of the generator 30 to be coupled to the rotation shaft 22 in the central portion of the rotor 33. The protruding cylindrical coupling shaft 332 is formed.
이에 따라, 회전축(22)의 직경이 극대화되어 회전축(22)의 비틀림 강성이 극대화되면서도 회전축(22)의 중량을 최소화할 수 있을 뿐만 아니라, 관리자가 발전기(30)와 허브(21) 사이를 자유롭게 이동할 수 있게 되어 풍력발전기의 유지 및 보수 작업이 더욱 간편하게 이루어지게 되는 것이다.Accordingly, the diameter of the rotating shaft 22 is maximized to minimize the weight of the rotating shaft 22 while maximizing the torsional rigidity of the rotating shaft 22, and the manager can freely move between the generator 30 and the hub 21. The move will make the maintenance and repair work of the wind turbine easier.
도 2는 본 발명의 다른 실시예를 보인 종단면도로서, 본 실시예에서는 상술한 제1실시예의 구성요소 중 상술한 회전축(22)은 강성을 갖는 금속봉재 등으로 형성되도록 하되, 상기 하우징(31)의 전면 및 후면에는 상기 회전축(22)이 삽입되도록 관통된 관통공(311)이 형성되도록 하고, 상기 관통공(311)의 내측면에 상기 회전축(22)을 지지하는 베어링(312)이 구비되도록 하며, 상술한 회전자(33)의 중앙부에 상기 회전축(22)이 삽입되어 결합되는 관 형상의 결합공(331)이 형성되도록 한다.Figure 2 is a longitudinal cross-sectional view showing another embodiment of the present invention, in the present embodiment, the above-described rotary shaft 22 of the components of the first embodiment to be formed of a metal rod having a rigid, etc., the housing 31 The front and rear of the) is formed with a through hole 311 through which the rotary shaft 22 is inserted, and a bearing 312 is provided on the inner side of the through hole 311 to support the rotary shaft 22. In addition, the rotary shaft 22 is inserted into the central portion of the rotor 33 described above so that the tubular coupling hole 331 to be coupled is formed.
이에 따라, 회전축(22)의 전방측 및 후방측이 동시에 하우징(31)에 지지됨으로써, 회전축(22)의 회전 과정에서 발생되는 진동이 방지될 뿐만 아니라, 회전축(22)의 휘어짐을 더욱 효과적으로 방지하고, 베어링(312)의 직경을 최소화할 수 있게 되어 풍력발전기의 유지 및 보수가 간편하게 이루어지게 되는 것이다.Accordingly, the front side and the rear side of the rotary shaft 22 are simultaneously supported by the housing 31, thereby preventing the vibration generated during the rotation of the rotary shaft 22, as well as more effectively preventing the bending of the rotary shaft 22. And, it is possible to minimize the diameter of the bearing 312 is to be easily maintained and repair of the wind turbine.
또한, 상기 회전축(22)은 허브(21)와 연결되는 전방측의 직경이 그 반대측 끝단보다 점차 커지게 형성되도록 함으로써, 강풍이 불면서 로터(20)가 발전기(30) 측으로 밀릴 때 회전축(22)의 이동 거리가 제한되어 안정적인 전력의 생산이 이루어지도록 하는 것이 바람직하다.In addition, the rotating shaft 22 is formed so that the diameter of the front side connected to the hub 21 is gradually larger than the opposite end, the rotary shaft 22 when the rotor 20 is pushed toward the generator 30 while blowing a strong wind. It is desirable that the travel distance of is limited so that stable power is produced.
이에, 본 발명은 발전기의 하중이 타워에 수직으로 전달됨과 동시에 발전기의 중량이 최소화되도록 한 풍력발전기를 제공함으로서, 발전기의 하중에 의한 타워 및 발전기의 손상을 줄일 수 있을 뿐만 아니라, 발전기의 설치 및 유지 보수가 간편하게 이루어지는 효과를 가지게 된다.Accordingly, the present invention provides a wind power generator in which the weight of the generator is minimized at the same time as the load of the generator is vertically transmitted to the tower, thereby reducing damage to the tower and the generator due to the load of the generator, and installing and installing the generator. Maintenance has the effect of being simple.
또한, 본 발명은 회전축을 원통형으로 형성하여 작업자가 발전기를 통해 허브 측으로 용이하게 접근할 수 있도록 함으로서, 발전기 및 로터의 유지 보수가 더욱 간편해지는 효과를 가지게 된다.In addition, the present invention is to form a rotating shaft in a cylindrical shape so that the operator can easily access to the hub side through the generator, it has the effect that the maintenance of the generator and the rotor becomes more simple.
또한, 본 발명은 하우징에 관통공을 형성하고, 회전축이 관통공에 삽입되도록 하여 회전축을 지지하는 베어링의 직경이 작으면서도 하우징과의 견고한 결합이 이루어지도록 함으로서, 베어링의 설치 및 분해보수가 간편하게 이루어지면서 로터의 작동 과정에서 발생되는 진동이 저감되는 효과를 가지게 된다.In addition, the present invention is to form a through hole in the housing, so that the rotary shaft is inserted into the through hole so that the rigid coupling with the housing is made while the diameter of the bearing supporting the rotating shaft is made, the installation and disassembly and repair of the bearing is made easy The vibration generated during the operation of the rotor is reduced.
또한, 회전축의 길이가 짧아진 만큼 굽힘강성이 증대되고, 전방측 직경이 후방측 보다 크게 형성되도록 하여 로터가 회전될 때 회전축이 후방으로 이동되는 것이 방지되도록 함으로서, 강풍에 의해 회전축이 휘어지거나 손상되는 것을 방지할 수 있을 뿐만 아니라 발전기가 더욱 안정적으로 전력을 생산할 수 있는 효과를 가지게 된다.In addition, as the length of the rotating shaft is shortened, the bending rigidity is increased, and the front diameter is made larger than the rear side to prevent the rotating shaft from moving backward when the rotor is rotated, thereby causing the rotating shaft to be bent or damaged by strong winds. Not only can it be prevented, but the generator can produce power more stably.

Claims (3)

  1. 중앙부에 허브가 형성되고, 상기 허브의 후방 측으로 회전축이 돌출되며, 상기 허브의 외측방으로 다수의 로터블레이드가 결합된 로터;A hub having a center portion formed therein, a rotating shaft protruding toward the rear side of the hub, and a plurality of rotor blades coupled to the outer side of the hub;
    상기 로터의 후방측으로 타워의 상단에 배치되되, 상기 타워의 직경보다 작은 축방향 길이를 갖고 내측면에 고정자가 결합된 하우징과, 상기 하우징의 내측에 회전 가능하게 결합되어 상기 로터의 회전에 의해 회전 작동되는 회전자로 구성되어 전력을 생산하는 발전기;A housing disposed at an upper end of the tower toward the rear side of the rotor, the housing having an axial length smaller than the diameter of the tower and having a stator coupled to an inner side thereof, and rotatably coupled to an inner side of the housing to rotate by rotation of the rotor; A generator configured to operate with a rotor to produce power;
    상기 타워의 상단에 고정되고, 상기 발전기의 하면 및 후면을 지지하는 지지브래킷;A support bracket fixed to an upper end of the tower and supporting a lower surface and a rear surface of the generator;
    을 포함하는 타워 상부 고정형 발전기를 갖는 풍력발전기.Wind generator having a tower-top fixed generator comprising a.
  2. 제 1항에 있어서,The method of claim 1,
    상기 회전축의 중앙부가 관통되어 상기 허브와 연통된 원통형으로 형성되고, A central portion of the rotating shaft penetrates and is formed in a cylindrical shape in communication with the hub;
    상기 회전자의 중앙부에 상기 회전축과 결합되며 양 단부가 개방되고 상기 하우징의 전면으로 돌출되는 원통형의 결합축이 형성된 것을 특징으로 하는 타워 상부 고정형 발전기를 갖는 풍력발전기.The wind turbine generator having a tower upper fixed type generator, characterized in that the center of the rotor is coupled to the rotating shaft and both ends are open and the cylindrical coupling shaft protruding toward the front of the housing.
  3. 제 1항에 있어서,The method of claim 1,
    상기 하우징의 전면 및 후면에 상기 회전축이 삽입되도록 관통된 관통공이 형성되고, Through holes are formed in the front and rear of the housing so that the rotating shaft is inserted,
    상기 관통공의 내측면에 상기 회전축을 지지하는 베어링이 구비되며,A bearing for supporting the rotation shaft is provided on the inner surface of the through hole,
    상기 회전자의 중앙부에 상기 회전축이 삽입되어 결합되는 결합공이 형성되고, Coupling hole is formed is coupled to the rotation shaft is inserted into the central portion of the rotor,
    상기 회전축은, 상기 허브와 결합되는 전방 측의 직경이 반대측의 직경 보다 점차 크게 형성된 것을 특징으로 하는 타워 상부 고정형 발전기를 갖는 풍력발전기.The rotating shaft is a wind turbine having a tower-top fixed generator characterized in that the diameter of the front side coupled to the hub is gradually larger than the diameter of the opposite side.
PCT/KR2010/003568 2009-06-04 2010-06-03 Wind turbine with generator fixed on top of tower WO2010140848A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0049585 2009-06-04
KR1020090049585A KR20090071526A (en) 2009-06-04 2009-06-04 A wind turbine with a tower fixing type generator

Publications (2)

Publication Number Publication Date
WO2010140848A2 true WO2010140848A2 (en) 2010-12-09
WO2010140848A3 WO2010140848A3 (en) 2011-03-03

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EP2975261A1 (en) * 2014-07-18 2016-01-20 Siemens Aktiengesellschaft Wind power plant with directly driven generator

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WO2006013722A1 (en) * 2004-08-02 2006-02-09 Yanmar Co., Ltd. Wind turbine apparatus
US20060152015A1 (en) * 2004-04-19 2006-07-13 Northern Power Systems, Inc. Direct Drive Wind Turbine
US20060220389A1 (en) * 2003-09-30 2006-10-05 Masaaki Shibata Wind wheel for wind power generation
US20080272604A1 (en) * 2007-04-27 2008-11-06 Cornelus Johannes Antonius Versteegh Wind Turbine

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US20060220389A1 (en) * 2003-09-30 2006-10-05 Masaaki Shibata Wind wheel for wind power generation
US20060152015A1 (en) * 2004-04-19 2006-07-13 Northern Power Systems, Inc. Direct Drive Wind Turbine
WO2006013722A1 (en) * 2004-08-02 2006-02-09 Yanmar Co., Ltd. Wind turbine apparatus
US20080272604A1 (en) * 2007-04-27 2008-11-06 Cornelus Johannes Antonius Versteegh Wind Turbine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2975261A1 (en) * 2014-07-18 2016-01-20 Siemens Aktiengesellschaft Wind power plant with directly driven generator
WO2016008733A1 (en) * 2014-07-18 2016-01-21 Siemens Aktiengesellschaft Wind turbine with directly driven generator
CN106662077A (en) * 2014-07-18 2017-05-10 西门子公司 Wind power generation equipment with directly driven generator

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KR20090071526A (en) 2009-07-01

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