CN112177848A - Method for improving starting performance of horizontal axis wind turbine - Google Patents
Method for improving starting performance of horizontal axis wind turbine Download PDFInfo
- Publication number
- CN112177848A CN112177848A CN202011048678.9A CN202011048678A CN112177848A CN 112177848 A CN112177848 A CN 112177848A CN 202011048678 A CN202011048678 A CN 202011048678A CN 112177848 A CN112177848 A CN 112177848A
- Authority
- CN
- China
- Prior art keywords
- wind
- wind speed
- speed
- wind turbine
- horizontal axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002474 experimental method Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 21
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/026—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for starting-up
-
- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/002—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being horizontal
-
- 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
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/602—Control system actuates through electrical actuators
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- 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)
- Wind Motors (AREA)
Abstract
A method for improving the starting performance of a horizontal axis wind turbine comprises the following steps: building a horizontal shaft wind turbine experimental device in the open wind tunnel; setting a blade installation angle; carrying out a blowing experiment, wherein the wind speed is gradually increased until the wind turbine is started, and the experimental wind speed is the starting wind speed; gradually reducing the experimental wind speed by taking the starting wind speed as a starting point until the wind turbine stops running, wherein the previous experimental wind speed of the experimental wind speed is the minimum wind speed for maintaining the normal operation of the wind turbine; adjusting the installation angle of the blade, and repeating the experimental process; selecting a wind field, erecting a horizontal shaft wind turbine, setting a blade installation angle, and assembling a wind turbine translation driving mechanism; and measuring the wind speed of natural wind, and when the wind speed of the natural wind is between the starting wind speed and the minimum wind speed for maintaining the normal operation of the wind machine, driving the wind machine to move against the wind by virtue of a wind machine translation driving mechanism, wherein the moving speed of the against wind is the difference value of the starting wind speed and the wind speed of the natural wind, so that the combined speed of the moving speed of the against wind and the wind speed of the natural wind reaches the starting wind speed until the wind machine is started.
Description
Technical Field
The invention belongs to the technical field of wind energy utilization, and particularly relates to a method for improving starting performance of a horizontal axis wind turbine.
Background
For a lift force type horizontal shaft wind turbine, although the lift force type horizontal shaft wind turbine has the characteristics of high tip speed ratio and high wind energy utilization rate, the problem that the wind turbine is difficult to start always exists, the wind turbine is difficult to start due to the fact that the starting wind speed of the wind turbine is high, even if the wind turbine starts smoothly, once the wind speed is reduced to a certain degree, the wind turbine stops rotating, the wind turbine is likely to be incapable of starting automatically, and therefore the wind turbine cannot work normally. The factors influencing the starting wind speed of the wind turbine include a plurality of factors, including the self equipment resistance factor of the wind turbine, the angle between the incoming flow and the blade, and the like, so that in order to enable the wind turbine to obtain a low starting wind speed, a large installation angle is generally provided for the blade, and at present, the large installation angle requirement when the wind turbine is started is mostly met by a variable pitch mode. In addition, the starting wind speed of the wind turbine is much higher than the wind speed for maintaining the normal operation of the wind turbine, and the operation of the wind turbine can be maintained at a low wind speed as long as the wind turbine can be started smoothly. However, at the minimum wind speed for maintaining the normal operation of the wind turbine, the wind turbine cannot be started up normally, and thus cannot generate electricity, which inevitably reduces the wind energy utilization rate of the wind turbine.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for improving the starting performance of a horizontal axis wind turbine, which can start the wind turbine to generate power at the minimum wind speed for maintaining the normal operation of the wind turbine and effectively improve the wind energy utilization rate of the wind turbine.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for improving starting performance of a horizontal axis wind turbine comprises the following steps:
the method comprises the following steps: building a horizontal shaft wind turbine experimental device in the open wind tunnel;
step two: adjusting the blade installation angle of a horizontal axis wind turbine to a set value;
step three: carrying out a blowing experiment through an open wind tunnel, controlling the experiment wind speed to be increased from 0 step by step, wherein the interval of each stage of experiment wind speed is 0.2m/s, the maintaining time of each stage of experiment wind speed is 30s until the horizontal axis wind turbine is started, the experiment wind speed at the moment is the starting wind speed of the horizontal axis wind turbine, and finally, recording and storing the obtained starting wind speed;
step four: controlling the experiment wind speed to be gradually reduced from the starting wind speed by taking the starting wind speed as a starting point, wherein the interval of each level of experiment wind speed is 0.2m/s, the maintaining time of each level of experiment wind speed is 30s until the horizontal axis wind turbine stops rotating, and the experiment wind speed at the moment can not maintain the normal operation of the wind turbine, so that the experiment wind speed at the previous level is the minimum wind speed for maintaining the normal operation of the wind turbine, and finally, recording and storing the minimum wind speed for maintaining the normal operation of the wind turbine;
step five: changing the blade installation angle of the horizontal axis wind turbine, repeating the third step and the fourth step, and obtaining the starting wind speed of the horizontal axis wind turbine and the minimum wind speed for maintaining the normal operation of the wind turbine under the installation angles of other blades;
step six: selecting a wind field, arranging a horizontal axis wind turbine frame in the wind field, setting a blade installation angle of a horizontal axis wind turbine, and configuring a wind turbine translation driving mechanism for the horizontal axis wind turbine; the translation driving mechanism of the wind turbine comprises a base, a sliding rail, a lead screw, a nut sliding table and a servo motor, wherein the sliding rail is horizontally arranged on the base; a wind speed probe is arranged at the front end of a fairing of the horizontal axis wind turbine;
step seven: the wind speed probe is used for measuring the wind speed of natural wind in real time, when the wind speed of the natural wind is between the starting wind speed and the minimum wind speed for maintaining the normal operation of the wind turbine, the servo motor is started to drive the screw rod to rotate, the screw nut sliding table and the horizontal axis wind turbine on the screw nut sliding table are further driven to move upwind along the sliding rail, the upwind moving speed of the horizontal axis wind turbine is the difference value of the starting wind speed and the wind speed of the natural wind, the combined speed of the upwind moving speed of the horizontal axis wind turbine and the wind speed of the natural wind can reach the starting wind speed at the moment, and.
The invention has the beneficial effects that:
the method for improving the starting performance of the horizontal axis wind turbine can start the wind turbine to generate power at the minimum wind speed for maintaining the normal operation of the wind turbine, and effectively improves the wind energy utilization rate of the wind turbine.
Drawings
FIG. 1 is a schematic structural diagram of a horizontal axis wind turbine and a translational driving mechanism of the wind turbine after assembly;
in the figure, 1 is a base, 2 is a sliding rail, 3 is a lead screw, 4 is a nut sliding table, 5 is a servo motor, 6 is a wind speed probe, and 7 is a horizontal shaft wind turbine.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
A method for improving starting performance of a horizontal axis wind turbine comprises the following steps:
the method comprises the following steps: building an experimental device of a horizontal axis wind turbine 7 in the open wind tunnel; in the embodiment, the horizontal axis wind turbine 7 is a small horizontal axis wind turbine, the power is 1KW, the rotation diameter of an impeller is 1000mm, and the rated working wind speed is 10 m/s;
step two: adjusting the blade installation angle of the horizontal axis wind turbine 7 to a set value; in the embodiment, the set values of the blade installation angles are respectively 6 degrees, 8 degrees, 10 degrees, 12 degrees, 14 degrees and 16 degrees, and the experiment is repeated according to the sequence of the installation angles from small to large during the experiment;
step three: carrying out a blowing experiment through an open wind tunnel, controlling the experiment wind speed to be increased from 0 step by step, wherein the interval of each stage of experiment wind speed is 0.2m/s, the maintaining time of each stage of experiment wind speed is 30s, and the experiment wind speed is the starting wind speed of the horizontal axis wind turbine 7 at the moment, and finally, recording and storing the obtained starting wind speed;
step four: controlling the experiment wind speed to be gradually reduced from the starting wind speed by taking the starting wind speed as a starting point, wherein the interval of each level of experiment wind speed is 0.2m/s, the maintaining time of each level of experiment wind speed is 30s until the horizontal axis wind turbine 7 stops rotating, and the experiment wind speed at the moment can not maintain the normal operation of the wind turbine, so that the experiment wind speed at the previous level is the minimum wind speed for maintaining the normal operation of the wind turbine, and finally, recording and storing the minimum wind speed for maintaining the normal operation of the wind turbine;
step five: changing the blade installation angle of the horizontal axis wind turbine 7, repeating the third step and the fourth step, and obtaining the starting wind speed of the horizontal axis wind turbine 7 under the installation angles of other blades and the minimum wind speed for maintaining the normal operation of the wind turbine; in this embodiment, the acquired starting wind speed of the horizontal axis wind turbine 7 at different blade installation angles and the minimum wind speed for maintaining normal operation of the wind turbine are summarized in table 1;
TABLE 1
| Blade mounting angle (degree) | 6 | 8 | 10 | 12 | 14 | 16 |
| Starting wind speed (m/s) | 8.2 | 7.6 | 7.2 | 6.4 | 5.2 | 4.2 |
| Maintaining a wind turbineMinimum wind speed for Normal operation (m/s) | 4.6 | 5.4 | 6.0 | 5.6 | 4.6 | 4 |
Step six: selecting a wind field, erecting a horizontal axis wind turbine 7 in the wind field, setting a blade installation angle of the horizontal axis wind turbine 7, and configuring a set of wind turbine translation driving mechanism for the horizontal axis wind turbine 7, wherein the assembled wind field and the assembled wind turbine translation driving mechanism are shown in figure 1; the translation driving mechanism of the wind turbine comprises a base 1, a sliding rail 2, a lead screw 3, a nut sliding table 4 and a servo motor 5, wherein the sliding rail 2 is horizontally arranged on the base 1, the lead screw 3 is horizontally arranged above the sliding rail 2, the lead screw 3 is parallel to the sliding rail 2, the nut sliding table 4 is arranged between the lead screw 3 and the sliding rail 2, the nut sliding table 4 can linearly move along the sliding rail 2, the servo motor 5 is horizontally arranged on the base 1, a motor shaft of the servo motor 5 is coaxially and fixedly connected with the lead screw 3, and the horizontal shaft wind turbine 1 is arranged on the nut sliding table 4; a wind speed probe 6 is arranged at the front end of a fairing of the horizontal axis wind turbine 1;
step seven: the wind speed probe 6 is used for measuring the wind speed of natural wind in real time, when the wind speed of the natural wind is between the starting wind speed and the minimum wind speed for maintaining the normal operation of the wind turbine, the servo motor 5 is started to drive the screw rod 3 to rotate, the screw nut sliding table 4 and the horizontal axis wind turbine 7 on the screw nut sliding table are further driven to move upwind along the sliding rail 2, the upwind moving speed of the horizontal axis wind turbine 7 is the difference value of the starting wind speed and the wind speed of the natural wind, the combined speed of the upwind moving speed of the horizontal axis wind turbine 7 and the wind speed of the natural wind can reach the starting wind speed at the moment, and the servo.
In the embodiment, the blade installation angle is 8 degrees, the actual measured value of the natural wind speed is 6m/s, and the natural wind speed is obviously lower than the starting wind speed of 7.6m/s, so that in a conventional state, the horizontal axis wind turbine 7 cannot be started at the natural wind speed of 6m/s, and meanwhile, the natural wind speed of 6m/s is higher than the minimum wind speed for maintaining the normal operation of the wind turbine, if the horizontal axis wind turbine 7 cannot be started smoothly, the natural wind of 6m/s cannot be used for generating electricity, and the wind energy utilization rate of the horizontal axis wind turbine 7 is obviously reduced. Therefore, the upwind moving speed of the horizontal axis wind turbine 7 is 1.6m/s by calculating the difference between the starting wind speed and the natural wind speed, so that the relative speed of the horizontal axis wind turbine 7 and the natural wind can be increased to 7.6m/s only by driving the horizontal axis wind turbine 7 to move upwind according to the speed of 1.6m/s by the servo motor 5, the starting wind speed is achieved, and finally the horizontal axis wind turbine 7 is started at a low wind speed.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
Claims (1)
1. A method for improving starting performance of a horizontal axis wind turbine is characterized by comprising the following steps:
the method comprises the following steps: building a horizontal shaft wind turbine experimental device in the open wind tunnel;
step two: adjusting the blade installation angle of a horizontal axis wind turbine to a set value;
step three: carrying out a blowing experiment through an open wind tunnel, controlling the experiment wind speed to be increased from 0 step by step, wherein the interval of each stage of experiment wind speed is 0.2m/s, the maintaining time of each stage of experiment wind speed is 30s until the horizontal axis wind turbine is started, the experiment wind speed at the moment is the starting wind speed of the horizontal axis wind turbine, and finally, recording and storing the obtained starting wind speed;
step four: controlling the experiment wind speed to be gradually reduced from the starting wind speed by taking the starting wind speed as a starting point, wherein the interval of each level of experiment wind speed is 0.2m/s, the maintaining time of each level of experiment wind speed is 30s until the horizontal axis wind turbine stops rotating, and the experiment wind speed at the moment can not maintain the normal operation of the wind turbine, so that the experiment wind speed at the previous level is the minimum wind speed for maintaining the normal operation of the wind turbine, and finally, recording and storing the minimum wind speed for maintaining the normal operation of the wind turbine;
step five: changing the blade installation angle of the horizontal axis wind turbine, repeating the third step and the fourth step, and obtaining the starting wind speed of the horizontal axis wind turbine and the minimum wind speed for maintaining the normal operation of the wind turbine under the installation angles of other blades;
step six: selecting a wind field, arranging a horizontal axis wind turbine frame in the wind field, setting a blade installation angle of a horizontal axis wind turbine, and configuring a wind turbine translation driving mechanism for the horizontal axis wind turbine; the translation driving mechanism of the wind turbine comprises a base, a sliding rail, a lead screw, a nut sliding table and a servo motor, wherein the sliding rail is horizontally arranged on the base; a wind speed probe is arranged at the front end of a fairing of the horizontal axis wind turbine;
step seven: the wind speed probe is used for measuring the wind speed of natural wind in real time, when the wind speed of the natural wind is between the starting wind speed and the minimum wind speed for maintaining the normal operation of the wind turbine, the servo motor is started to drive the screw rod to rotate, the screw nut sliding table and the horizontal axis wind turbine on the screw nut sliding table are further driven to move upwind along the sliding rail, the upwind moving speed of the horizontal axis wind turbine is the difference value of the starting wind speed and the wind speed of the natural wind, the combined speed of the upwind moving speed of the horizontal axis wind turbine and the wind speed of the natural wind can reach the starting wind speed at the moment, and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011048678.9A CN112177848B (en) | 2020-09-29 | 2020-09-29 | Method for improving starting performance of horizontal axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011048678.9A CN112177848B (en) | 2020-09-29 | 2020-09-29 | Method for improving starting performance of horizontal axis wind turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112177848A true CN112177848A (en) | 2021-01-05 |
| CN112177848B CN112177848B (en) | 2021-08-10 |
Family
ID=73946318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011048678.9A Expired - Fee Related CN112177848B (en) | 2020-09-29 | 2020-09-29 | Method for improving starting performance of horizontal axis wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112177848B (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100129215A1 (en) * | 2008-11-21 | 2010-05-27 | Preus Robert W | System for providing dynamic pitch control in a wind turbine |
| WO2010141347A2 (en) * | 2009-06-01 | 2010-12-09 | Synkinetics, Inc. | Multi-rotor fluid turbine drive with speed converter |
| CN102192097A (en) * | 2010-03-09 | 2011-09-21 | 水利部牧区水利科学研究所 | Wind-pressure type blade-changing device of wind turbine |
| CN202073706U (en) * | 2011-04-07 | 2011-12-14 | 水利部牧区水利科学研究所 | Control device for increasing starting performance of wind turbine |
| WO2013001647A1 (en) * | 2011-06-30 | 2013-01-03 | 学校法人文理学園 | Propeller windmill for comapact electricity generating machine |
| CN103114964A (en) * | 2013-02-05 | 2013-05-22 | 西安交通大学 | Downwind wind turbine blade system with angular displacement adjustable blades |
| US20130315732A1 (en) * | 2012-05-24 | 2013-11-28 | Richard K. Sutz | Horizontal axis wind machine with multiple rotors |
| US20140127015A1 (en) * | 2012-11-08 | 2014-05-08 | Kun Shan University | Automatic adjustment device for adjusting inclination of blades of wind turbines |
| US20140175801A1 (en) * | 2012-12-21 | 2014-06-26 | Charles T. Valenza | Wind turbine power generator |
| CN103939291A (en) * | 2014-05-06 | 2014-07-23 | 耿志伟 | High-low wind speed compatible-type wind turbine generator |
| CN104653393A (en) * | 2013-11-25 | 2015-05-27 | 通用电气公司 | Methods and systems to shut down a wind turbine |
| CN104704234A (en) * | 2012-04-06 | 2015-06-10 | 埃尔金斯公司 | Rpm controlled wind power generation system |
| JP2016089818A (en) * | 2014-11-05 | 2016-05-23 | 株式会社Ｆｅｖ再生可能エネルギー開発技研 | Downwind type wind turbine generator |
| US20180163695A1 (en) * | 2016-12-14 | 2018-06-14 | Thunderbird Power Corp | Multiple-blade wind machine with shrouded rotors |
| EP3359809A1 (en) * | 2015-10-09 | 2018-08-15 | Ba At. Lai | Method of determining and controlling the attack angle of fixed-speed wind turbine blade |
| CN108799013A (en) * | 2018-06-13 | 2018-11-13 | 内蒙古工业大学 | A kind of device and its measurement method measuring wind energy conversion system Unsteady Flow |
| CN108894920A (en) * | 2018-06-19 | 2018-11-27 | 嘉兴学院 | A kind of wind power plant that can automatically adjust direction |
| CN209523843U (en) * | 2019-02-20 | 2019-10-22 | 钱健 | Wind power generating set to wind apparatus |
| WO2019238192A1 (en) * | 2018-06-14 | 2019-12-19 | Vestas Wind Systems A/S | A wind turbine with hinged blades having a hinge position between inner and outer tip end of the blades |
| CN110863942A (en) * | 2019-12-23 | 2020-03-06 | 沈阳航空航天大学 | Energy-gathering horizontal shaft wind turbine for improving wind energy utilization rate and using method |
| CN111173673A (en) * | 2020-01-16 | 2020-05-19 | 清华大学 | Wind power generator |
| CN211144695U (en) * | 2019-12-18 | 2020-07-31 | 王梦琳 | Adjusting device of near-ground low-wind-speed wind driven generator |
| CN111577533A (en) * | 2020-06-15 | 2020-08-25 | 李颖 | Wind power generation system based on data monitoring |
-
2020
- 2020-09-29 CN CN202011048678.9A patent/CN112177848B/en not_active Expired - Fee Related
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100129215A1 (en) * | 2008-11-21 | 2010-05-27 | Preus Robert W | System for providing dynamic pitch control in a wind turbine |
| WO2010141347A2 (en) * | 2009-06-01 | 2010-12-09 | Synkinetics, Inc. | Multi-rotor fluid turbine drive with speed converter |
| CN102192097A (en) * | 2010-03-09 | 2011-09-21 | 水利部牧区水利科学研究所 | Wind-pressure type blade-changing device of wind turbine |
| CN202073706U (en) * | 2011-04-07 | 2011-12-14 | 水利部牧区水利科学研究所 | Control device for increasing starting performance of wind turbine |
| WO2013001647A1 (en) * | 2011-06-30 | 2013-01-03 | 学校法人文理学園 | Propeller windmill for comapact electricity generating machine |
| CN104704234A (en) * | 2012-04-06 | 2015-06-10 | 埃尔金斯公司 | Rpm controlled wind power generation system |
| US20130315732A1 (en) * | 2012-05-24 | 2013-11-28 | Richard K. Sutz | Horizontal axis wind machine with multiple rotors |
| US20140127015A1 (en) * | 2012-11-08 | 2014-05-08 | Kun Shan University | Automatic adjustment device for adjusting inclination of blades of wind turbines |
| US20140175801A1 (en) * | 2012-12-21 | 2014-06-26 | Charles T. Valenza | Wind turbine power generator |
| CN103114964A (en) * | 2013-02-05 | 2013-05-22 | 西安交通大学 | Downwind wind turbine blade system with angular displacement adjustable blades |
| CN104653393A (en) * | 2013-11-25 | 2015-05-27 | 通用电气公司 | Methods and systems to shut down a wind turbine |
| CN103939291A (en) * | 2014-05-06 | 2014-07-23 | 耿志伟 | High-low wind speed compatible-type wind turbine generator |
| JP2016089818A (en) * | 2014-11-05 | 2016-05-23 | 株式会社Ｆｅｖ再生可能エネルギー開発技研 | Downwind type wind turbine generator |
| EP3359809A1 (en) * | 2015-10-09 | 2018-08-15 | Ba At. Lai | Method of determining and controlling the attack angle of fixed-speed wind turbine blade |
| US20180163695A1 (en) * | 2016-12-14 | 2018-06-14 | Thunderbird Power Corp | Multiple-blade wind machine with shrouded rotors |
| CN108799013A (en) * | 2018-06-13 | 2018-11-13 | 内蒙古工业大学 | A kind of device and its measurement method measuring wind energy conversion system Unsteady Flow |
| WO2019238192A1 (en) * | 2018-06-14 | 2019-12-19 | Vestas Wind Systems A/S | A wind turbine with hinged blades having a hinge position between inner and outer tip end of the blades |
| CN108894920A (en) * | 2018-06-19 | 2018-11-27 | 嘉兴学院 | A kind of wind power plant that can automatically adjust direction |
| CN209523843U (en) * | 2019-02-20 | 2019-10-22 | 钱健 | Wind power generating set to wind apparatus |
| CN211144695U (en) * | 2019-12-18 | 2020-07-31 | 王梦琳 | Adjusting device of near-ground low-wind-speed wind driven generator |
| CN110863942A (en) * | 2019-12-23 | 2020-03-06 | 沈阳航空航天大学 | Energy-gathering horizontal shaft wind turbine for improving wind energy utilization rate and using method |
| CN111173673A (en) * | 2020-01-16 | 2020-05-19 | 清华大学 | Wind power generator |
| CN111577533A (en) * | 2020-06-15 | 2020-08-25 | 李颖 | Wind power generation system based on data monitoring |
Non-Patent Citations (1)
| Title |
|---|
| 朱建勇等: "100kW水平轴风力机叶片气动性能分析", 《沈阳航空航天大学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112177848B (en) | 2021-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110094302B (en) | Variable-propeller top edge self-rotating vertical axis wind turbine | |
| EP1990540A1 (en) | A vane attack angle regulator of a vertical shaft wind-driven generator | |
| CN2797675Y (en) | Wind power engine with vertical shaft | |
| CN105909470A (en) | Self-adaption maximum power tracing control method of power generating set | |
| CN103485973B (en) | A kind of pneumatic equipment blades with tip vane | |
| CN112177848B (en) | Method for improving starting performance of horizontal axis wind turbine | |
| CN114542375B (en) | Method for recycling parking rotation energy of wind turbine and reversely using energy to start wind turbine | |
| CN209130472U (en) | A kind of wind-power electricity generation station-service anemobiagraph | |
| CN110080835B (en) | High-efficiency high-rotation-speed straight movable blade of steam turbine and using method thereof | |
| CN210371018U (en) | Cross brace device for large vertical axis wind turbine | |
| CN213450672U (en) | Double-blade wind wheel with variable blade positions | |
| CN110863942B (en) | Energy-gathering horizontal shaft wind turbine for improving wind energy utilization rate and using method | |
| CN111241708B (en) | Calculation method and model selection method of super capacitor for large fan variable pitch system | |
| CN204961156U (en) | Feather wind -force motor regulation and control system | |
| CN110285013B (en) | Method for improving wind energy utilization efficiency of horizontal axis wind turbine by using eddy current | |
| CN201908790U (en) | Wide-top blade capable of self adjusting blade pitch | |
| CN110185578B (en) | Cross support device for large vertical axis wind turbine | |
| CN213450673U (en) | Wind wheel with adjustable blade position | |
| CN221683106U (en) | Vertical axis wind turbine blade and vertical axis wind turbine | |
| CN105065199A (en) | Regulator control system of variable pitch wind power motor | |
| CN112196731A (en) | Blade pitch angle variable vertical axis wind turbine power generation device | |
| CN105545604A (en) | Full-rotor speed-multiplying wind driven generator | |
| CN112283023B (en) | Double-blade wind wheel with variable blade positions and working method thereof | |
| CN110541791B (en) | Self-adjusting propeller V-shaped self-starting vertical axis wind turbine and method thereof | |
| CN216077420U (en) | Wind power generation equipment capable of improving power generation efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210810 |