KR20160088166A - Simulator for endurance test of wind turbine - Google Patents

Simulator for endurance test of wind turbine Download PDF

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Publication number
KR20160088166A
KR20160088166A KR1020150007568A KR20150007568A KR20160088166A KR 20160088166 A KR20160088166 A KR 20160088166A KR 1020150007568 A KR1020150007568 A KR 1020150007568A KR 20150007568 A KR20150007568 A KR 20150007568A KR 20160088166 A KR20160088166 A KR 20160088166A
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KR
South Korea
Prior art keywords
rotor
gear
unit
simulator
rotation axis
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KR1020150007568A
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Korean (ko)
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KR101656482B1 (en
Inventor
김병희
서영호
한의돈
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강원대학교산학협력단
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Priority to KR1020150007568A priority Critical patent/KR101656482B1/en
Publication of KR20160088166A publication Critical patent/KR20160088166A/en
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Publication of KR101656482B1 publication Critical patent/KR101656482B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/004Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with permanent magnets combined with electromagnets
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

And to a simulator for a durability test of a wind power generator that is capable of measuring the fatigue of a gear portion due to an eccentric load and the torque change caused thereby. The simulator for durability test of a wind power generator includes a rotor section, a driving section, a gear section, and a torque transducer. The rotor portion includes a hub having a rotary shaft formed on one side and at least one blade specimen connected along the periphery of the hub. The driving unit is disposed on the front surface of the rotor unit to rotate the rotor unit in a non-contact manner. The gear portion is connected to the rotation axis of the rotor portion. The torque transducer is connected to the rotation axis of the gear portion, and measures the torque change due to the disturbance element acting on the rotation axis of the gear portion.

Description

[0001] DESCRIPTION [0002] Simulator for endurance test of wind turbine [
The present invention relates to a simulator for a durability test of a wind turbine generator which is capable of measuring the influence of a wind load which is not evenly distributed on a swept area of a wind turbine blade on a rotor shaft and an internal rotating component,
Generally, a wind power generator is a renewable energy source that converts kinetic energy of wind into electric energy.
In recent years, fossil energy use and fossil energy have become serious due to the indiscreet use of fossil energy, and research and interest in renewable energy has been focused. Accordingly, a variety of new and renewable energy has been developed and utilized practically. Among them, wind turbines are one of the most popular energy sources.
However, since the initial investment cost is high at the time of installing the wind turbine generator, it is important to install the wind turbine generator and to operate the turbomachine for a long period of time. In addition, due to the enlargement of wind turbine generators, the loads generated on the rotor part are greatly increased, and maintenance is becoming more and more difficult as the position changes from land to sea.
Accordingly, it is important to accurately test the durability of the wind turbine before installation, and it is particularly important to evaluate the durability of the rotating component by bending the rotor shaft when an uneven wind load is applied to the swirling area of the blade.
However, in the conventional wind turbine durability test simulator, since the rotational axis of the rotor part to be tested is directly connected to the rotating motor, there is a problem that bending of the rotational axis of the rotor part can not be realized due to wind load.
Open Patent Publication No. 10-2012-0121485 (published November 6, 2012)
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a wind turbine generator and a turbine generator, in which rotation parts such as gears and bearings are formed to receive offset loads due to the rotation axis of a rotor, A durability test of the components, and a simulator for durability test of a wind turbine generator configured to measure changes in power quality.
According to an aspect of the present invention, there is provided a torque converter including a rotor portion, a driving portion, a gear portion, and a torque transducer. The rotor portion includes a hub having a rotary shaft formed on one side and at least one blade specimen connected along the periphery of the hub. The driving unit is disposed on the front surface of the rotor unit to rotate the rotor unit in a non-contact manner. The gear portion is connected to the rotation axis of the rotor portion. The torque transducer is connected to the rotation axis of the gear portion, and measures the torque change due to the disturbance element acting on the rotation axis of the gear portion.
According to the present invention, by rotating the rotor portion non-contactly using the magnetic coupling, the rotation axis of the rotor becomes rotatable without being constrained by the bearing. Accordingly, when a current of a desired magnitude is supplied to each electromagnet that applies a magnetic force to the permanent magnet mounted on the blade specimen, bending of the rotor portion due to uneven wind load in the wind area such as an actual wind power generator, It is possible to realize an offset load applied to the parts.
Further, the durability of the rotating parts can be evaluated by monitoring the temperature change of the rotating parts due to the bending of the rotor part and the generation of noise, etc., and the change in the quality of the power produced by measuring the torque of the rotating part of the gear part can be more accurately detected .
1 is a configuration diagram of a simulator for a durability test of a wind power generator according to an embodiment of the present invention;
2 is a side view of the simulator for endurance test of a wind power generator shown in Fig. 1; Fig.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a configuration diagram of a simulator for endurance test of a wind power generator according to an embodiment of the present invention, and Fig. 2 is a diagram showing a side of a simulator for endurance test of a wind power generator shown in Fig.
1 and 2, a wind turbine endurance test simulator 100 includes a rotor unit 110, a driving unit 120, a gear unit 130, and a torque transducer 140.
The rotor unit 110 includes a hub 111 having a rotating shaft formed on one side thereof and at least one blade specimen 112 connected along the periphery of the hub 111. More specifically, the blade specimen 112 can be formed to have similar aeroelastic characteristics to the actual wind turbine blade, and the shape and the number are not limited, but are equal to the shape and the number of the specimen of the actual wind turbine to be tested desirable.
The driving unit 120 is disposed on the front surface of the rotor unit 110 to rotate the rotor unit 110 in a non-contact manner. The driving unit 120 includes a rotary actuator 121, a first magnetic coupling 122, and a second magnetic coupling 123 to rotate the rotor unit 110 in a noncontact manner.
The rotary actuator 121 may be composed of a rotary motor and may be arranged in a horizontal direction such that the rotary shaft is directed to the rotor unit 110. The rotary actuator 121 may be disposed at a predetermined distance from the ground via a separate support frame and a speed reducer 124 may be installed on one side of the rotary shaft to reduce the rotational speed of the actuator 121 .
The first magnetic coupling 122 may be mounted on the rotational axis of the rotary actuator 121. Accordingly, when the rotary actuator 121 rotates, the first magnetic coupling 122 can rotate together.
The second magnetic coupling 123 is rotated by the first magnetic coupling 122 and may be disposed facing the first magnetic coupling 122 and mounted on the front surface of the rotor portion 110.
Here, the first and second magnetic couplings 122 and 123 include magnets having a plurality of divided electrodes in which N and S poles are alternately arranged inside the housing, so that the first and second magnetic couplings 122 and 123 are non- It is possible to transmit the power to the rotor unit 110 also.
As the first and second magnetic couplings 122 and 123 rotate the rotor unit 110 in a non-contact manner, the bending motion acting on the rotor unit 110 can be realized. In the conventional wind turbine durability test simulator, since the rotational axis of the rotor part is directly connected to the driving part such as the actuator, the wind load There is a problem in that it is impossible to simulate bending with respect to the rotational axis of the rotor portion due to the bending.
However, according to the present invention, since the first and second magnetic couplings 122 and 123 are mounted on the rotary shaft of the rotor unit 110 and the rotary shaft of the rotary actuator 121, the rotational force is transmitted to the rotor unit 110 in a non- . Accordingly, the rotation axis of the rotor unit 110 is not constrained, and the bending motion of the rotor unit 110 with respect to the rotation axis can be realized more accurately.
The gear portion 130 may be connected to the rotation axis of the rotor portion 110, that is, the rotation axis of the hub 111. As the gear 130 is connected to the rotary shaft of the rotor 110, the gear 130 can receive the rotational force of the bendable rotor 110. Here, the gear portion 130 may be a spur gear. The driving pulley 131 of the spur gear is connected to the rotating shaft of the blade specimen 112 and the driven pulley 132 may be connected to the torque transducer 140 described later.
The torque transducer 140 is connected to the rotation shaft of the gear unit 130 and serves to measure a torque change due to disturbance elements acting on the rotation axis of the gear unit 130. Since the torque change acting on the rotation axis of the gear portion 130 due to the disturbance element can be measured, the efficiency of the electric power produced through the motion of the rotor portion can be detected using the measured torque change value do. To this end, the wind turbine durability test simulator 100 may include a separate monitoring device.
The torque transducer 140 may be equipped with a magnetic brake 150 for braking the rotation of the gear 130.
A plurality of permanent magnets 160 mounted on the front surface of the blade specimen 112 for applying a disturbance to the blade specimen 112 of the rotor unit 110 and a plurality of permanent magnets 160 disposed opposite to the permanent magnets 160, And an electromagnet 170 for generating a magnetic force by receiving current from the electromagnet 170.
 The permanent magnets 160 may be mounted on the front surface of the blade specimen 112, respectively. At this time, the number of the permanent magnets 160 is not limited, and is preferably equal to the number of the blade specimens 112.
The electromagnet 170 may be arranged to face the permanent magnet 160, respectively, as it is magnetized when an electric current flows and is returned to its original state that is not magnetized when the electric current is interrupted. As the electromagnet 170 is disposed facing the permanent magnet 160, when the electromagnet 170 receives a current from the outside, a magnetic force is generated to apply a repulsive force to the permanent magnet 160. Accordingly, the blade specimen 112 with the permanent magnet 160 is pushed backward, and the rotation axis of the hub 111 to which the blade specimen 112 is connected bends.
As described above, the configuration for applying the disturbance to the rotor unit 110 can be changed into various configurations in accordance with the needs of the practitioner such as the air shot and the contact cam in addition to the repulsive force of the electromagnet 170.
Meanwhile, the magnitude of the current supplied to each electromagnet 170 can be controlled. Here, the magnitude of the magnetic force corresponds to the magnitude of the actual wind load. When the magnitude of the current supplied to the electromagnet 170 is changed, the magnitude of the magnetic force generated in the electromagnet 170 can be adjusted. The bending motion of the rotor unit 110 according to the asymmetric wind load can be realized by supplying a current having a different magnitude to each electromagnet 170.
In other words, if the magnitude of the magnetic force generated by the electromagnet 170 is changed, the magnitude of the bending acting on the rotor unit 110 can be changed. Therefore, the efficiency of the power that varies according to various wind loads .
According to another embodiment, the rotor unit 110 may be equipped with a temperature sensor 170. [ As the temperature sensor 170 is mounted on the rotor 110, the temperature change of the rotor 110 can be measured according to the magnitude of the magnetic force. That is, when the rotor unit 110 is bent by the wind load, the offset load is applied to the rotation axis, and the temperature around the rotation axis rises. Therefore, if the temperature around the rotor unit 110 is measured and monitored, You can refer to it at time.
Although not shown, the rotor unit 110 is provided with an impact sensor for measuring the dynamic characteristics of the rotor unit 110 according to the magnitude of the magnetic force, and a noise measuring device for measuring the magnitude of sound due to failure of the internal components .
As described above, the wind turbine durability test simulator 100 uses the magnetic couplings 122 and 123 to non-contactly rotate the rotor unit 110 so that the rotational axis of the rotor unit 110 is not constrained to the bearings Rotation is possible. Accordingly, if a desired magnitude of current is supplied to each electromagnet 170 that applies a magnetic force to the permanent magnet 160 mounted on the blade specimen 112, a rotor of a wind load similar to a real wind turbine, It is possible to realize the bending of the part 110 with respect to the rotational axis and the offset load applied to the rotational parts.
In addition, the durability of the rotating parts can be evaluated by monitoring the temperature change of the rotating parts and the generation of noise due to the bending of the rotating shaft of the rotor part 110. By measuring the torque of the rotating shaft of the gear part 130, It is possible to more accurately detect the change in the quality of the image.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation and that those skilled in the art will recognize that various modifications and equivalent arrangements may be made therein. It will be possible. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.
100 .. Simulator for endurance test of wind power generator
110 .. rotor part 111 .. hub
112 .. Blade Specimen 120 .. Drive
130 .. Gear section 140 .. Torque transducer
150 .. Magnetic brake 160 .. Permanent magnet
170 .. Electromagnet 180 .. Temperature sensor

Claims (6)

  1. A hub portion having a rotary shaft formed on one side thereof, and a rotor portion having at least one blade specimen connected along the periphery of the hub;
    A driving unit disposed on a front surface of the rotor unit to rotate the rotor unit in a non-contact manner;
    A gear portion connected to the rotation axis of the rotor portion; And
    A torque transducer connected to a rotation shaft of the gear portion and measuring a torque change due to a disturbance element acting on a rotation axis of the gear portion;
    And a simulator for testing the durability of the wind turbine generator.
  2. The method according to claim 1,
    A plurality of permanent magnets respectively mounted on front surfaces of the blade specimens,
    Further comprising an electromagnet disposed opposite each of the permanent magnets and generating a magnetic force by receiving an external current.
  3. 3. The method of claim 2,
    Wherein a magnitude of a current supplied to the electromagnet is controllable.
  4. The method according to claim 1,
    The driving unit includes:
    A rotary actuator,
    A first magnetic coupling mounted on a rotational axis of the rotary actuator,
    And a second magnetic coupling arranged to face the first magnetic coupling and mounted on a front surface of the rotor.
  5. The method according to claim 1,
    And a magnetic brake connected to the torque transducer for braking the rotation of the gear unit.
  6. The method according to claim 1,
    Wherein the rotor unit is equipped with one selected from a temperature sensor, an impact sensor, and a noise measuring instrument.

KR1020150007568A 2015-01-15 2015-01-15 Simulator for endurance test of wind turbine KR101656482B1 (en)

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KR101656482B1 KR101656482B1 (en) 2016-09-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109632147A (en) * 2019-02-19 2019-04-16 天津工业大学 A kind of experimental bench measuring gear contact temperature
KR102080322B1 (en) * 2019-08-29 2020-02-21 (주)한텍솔루션 Management system of energy saving facility using magnetic coupling
CN110987417A (en) * 2019-11-21 2020-04-10 重庆大学 Miniature gear durability test bench

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177166A (en) * 2002-11-25 2004-06-24 Koyo Seiko Co Ltd Nrro measuring apparatus
KR20120121485A (en) 2011-04-27 2012-11-06 주식회사 글로비즈 simulation equipment for wind power generator
CN103323234A (en) * 2013-05-28 2013-09-25 清华大学 Fan speed-increasing gearbox test bed capable of achieving pose controlling and spindle loading

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177166A (en) * 2002-11-25 2004-06-24 Koyo Seiko Co Ltd Nrro measuring apparatus
KR20120121485A (en) 2011-04-27 2012-11-06 주식회사 글로비즈 simulation equipment for wind power generator
CN103323234A (en) * 2013-05-28 2013-09-25 清华大学 Fan speed-increasing gearbox test bed capable of achieving pose controlling and spindle loading

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109632147A (en) * 2019-02-19 2019-04-16 天津工业大学 A kind of experimental bench measuring gear contact temperature
KR102080322B1 (en) * 2019-08-29 2020-02-21 (주)한텍솔루션 Management system of energy saving facility using magnetic coupling
CN110987417A (en) * 2019-11-21 2020-04-10 重庆大学 Miniature gear durability test bench

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