CN103557118A - Electric-hydraulic proportional yaw damping device of wind turbine generator - Google Patents
Electric-hydraulic proportional yaw damping device of wind turbine generator Download PDFInfo
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- CN103557118A CN103557118A CN201310584831.3A CN201310584831A CN103557118A CN 103557118 A CN103557118 A CN 103557118A CN 201310584831 A CN201310584831 A CN 201310584831A CN 103557118 A CN103557118 A CN 103557118A
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- way valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention provides an electric-hydraulic proportional yaw damping device of a wind turbine generator. The Electric-hydraulic proportional yaw damping device is a unique and novel mechanical-hydraulic damping device and is used in a yaw system of large and oversize wind turbine generator sets. The damping manner can replace the traditional damping manner that damping moment is generated by friction of a brake.
Description
Technical field
The electric-hydraulic proportion formula yaw damping device that the present invention relates to a kind of wind-powered electricity generation unit, related technical field is the mechanical-hydraulic engineering field of new energy wind generating technology.
Background technique
In the yaw system of the large-scale and super-huge wind-powered electricity generation unit that Present Domestic is external, the yaw damping mode of employing is all to form by organizing hydraulic brake (normally caliper disc) more; Being about to hydraulic brake is fixed on the seat of rotating cabin, brake disc is fixed on the pylon of blower fan, when the driftage revolution of cabin, relies on the friction plate of break and the friction between brake disc, produce the damping torque contrary with gyratory directions, to reach cabin driftage, turn round object stably.This mode that produces damping torque by friction exists the following problem that solves of needing in actual motion: the one, the friction disc wear of break is serious, must be often renewal of facing renewal more, more need to shut down therefore impact generating during renewal of facing renewal; The 2nd, in driftage process, huge frictional force produces strong noise, very causes and disturbs residents.
Summary of the invention
Goal of the invention: the invention provides a kind of electric-hydraulic proportion formula yaw damping device of wind-powered electricity generation unit, its objective is the serious and large problem of noise of the friction disc wear of the solution existing break of mode in the past.
Technological scheme: the present invention is achieved through the following technical solutions:
An electric-hydraulic proportion formula yaw damping device for unit, is characterized in that: this device is mainly passed in and out hydraulic manifold block, Proportional valve electron-amplifier and the fuel tank of oil pipe assembly, each hydraulic parts of interior plug-in mounting and electricity liquid ratio relief valve by oil hydraulic pump, pump; Oil hydraulic pump and all pipelines are all placed in fuel tank, hydraulic manifold block be arranged on fuel tank on cover, the flange of the high speed axle head of the lower flange disc of fuel tank and wind-powered electricity generation unit one driftage speedup box is with bolt in succession; Pump turnover oil pipe assembly is connected with oil hydraulic pump, and pump turnover oil pipe assembly is communicated with fuel tank; Proportional valve electron-amplifier is all connected with hydraulic manifold block with oil hydraulic pump; Oil hydraulic pump is connected with the axle of driftage speedup box by pump interlink joint.
This device also comprises pressure gauge; In hydraulic manifold block, be provided with the first one-way valve, the second one-way valve, the 3rd one-way valve, the 4th one-way valve, two position two-way valve, electricity liquid ratio relief valve and relief valve; The entrance of the first one-way valve communicates with fuel tank, and the outlet of the first one-way valve communicates with the entrance of the first hydraulic fluid port of oil hydraulic pump, the first of two position two-way valve and the 3rd one-way valve; Entrance and the manometric interface of the 3rd outlet of one-way valve and the entrance of relief valve, electricity liquid ratio relief valve communicate; The outlet of relief valve and the outlet of electricity liquid ratio relief valve all communicate with fuel tank; The entrance of the second one-way valve communicates with fuel tank, and second mouthful of D of the second hydraulic fluid port B of the outlet of the second one-way valve and oil hydraulic pump, two position two-way valve and the entrance of the 4th one-way valve communicate; Entrance and the manometric interface of the 4th outlet of one-way valve and the entrance of relief valve, electricity liquid ratio relief valve communicate; The outlet T of the outlet of relief valve and electricity liquid ratio relief valve communicates.
Proportional valve electron-amplifier be contained in fuel tank on cover, the proportion electro-magnet lead-out wires of coil of electricity liquid ratio relief valve is connected with the output line of Proportional valve electron-amplifier.
On fuel tank, be also provided with liquid-level switch K, air-strainer F and oil ga(u)ge Y.
Oil hydraulic pump is arranged in fuel tank by pump support-flange.
Advantage and effect:
The invention provides a kind of electric-hydraulic proportion formula yaw damping device of wind-powered electricity generation unit, electric-hydraulic proportion formula yaw damping device is a kind of novel mechanical-hydraulic damping device of uniqueness, it is for the yaw system of large-scale and super-huge wind power generating set, and this damping mode can substitute traditional damping mode by brake friction generation damping torque.
The application is for the more a kind of power of domestic application, to be the yaw system of the double-fed wind generator unit (high transmission ratio is gear box-typed) of 1.5MW (megawatt), it is a kind of Novel damping device without rubbing and can reconciling easily and flexibly damping torque size, the mode that its adopts electric-hydraulic proportion to control, just can change the cabin rotating damping torque of going off course with the electric current that adjusting electron-amplifier is defeated by this damping device.
Accompanying drawing explanation:
Fig. 1 is electric-hydraulic proportion formula yaw damping device view of the present invention;
Fig. 2 is that the M of Fig. 1 is to view;
Fig. 3 is that the R of Fig. 1 is to view;
Fig. 4 is the application's hydraulic system principle figure;
Fig. 5 is the flow direction of the application's oil hydraulic pump liquid stream while being rotated in the forward, as shown in bold arrow line;
The flow direction of liquid stream when Fig. 6 is oil hydraulic pump counterrotating, as shown in bold arrow line.
Embodiment: the present invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, the invention provides a kind of electric-hydraulic proportion formula yaw damping device of wind-powered electricity generation unit, this device is mainly passed in and out hydraulic manifold block 303, Proportional valve electron-amplifier 404 and the fuel tank 505 of oil pipe assembly 202, each hydraulic parts of interior plug-in mounting and electricity liquid ratio relief valve by oil hydraulic pump 101, pump; Oil hydraulic pump 101 and all pipelines are all placed in fuel tank, fuel tank 505 is a cylindrical body, such as, external diameter * height=300 * 450mm, hydraulic manifold block 303 be arranged on fuel tank on cover, the flange of the high speed axle head of the lower flange disc of fuel tank and wind-powered electricity generation unit one driftage speedup box 111 is with bolt in succession; Pump turnover oil pipe assembly 202 is connected with oil hydraulic pump 101, and pump turnover oil pipe assembly 202 is communicated with fuel tank 505; Proportional valve electron-amplifier 404 is all connected with hydraulic manifold block 303 with oil hydraulic pump 101; Oil hydraulic pump 101 is connected with the axle 707 of driftage speedup box 111 by pump interlink joint 606.
This device also comprises pressure gauge 6; As shown in Figure 2, in hydraulic manifold block 303, be provided with the first one-way valve 1-1, the second one-way valve 1-2, the 3rd one-way valve 2-1, the 4th one-way valve 2-2, two position two-way valve 3, electricity liquid ratio relief valve 4 and relief valve 5; The entrance of the first one-way valve 1-1 communicates with fuel tank 505, and the outlet of the first one-way valve 1-1 communicates with the first hydraulic fluid port A, the first C of two position two-way valve 3 and the entrance of the 3rd one-way valve 2-1 of oil hydraulic pump 101; The outlet of the 3rd one-way valve 2-1 communicates with the interface of the entrance of relief valve 5, the entrance of electricity liquid ratio relief valve 4 and pressure gauge 6; The outlet of the outlet of relief valve 5 and electricity liquid ratio relief valve 4 all communicates with fuel tank 505; The entrance of the second one-way valve 1-2 communicates with fuel tank 505, and second mouthful of D of the second hydraulic fluid port B of the outlet of the second one-way valve 1-2 and oil hydraulic pump 101, two position two-way valve 3 and the entrance of the 4th one-way valve 2-2 communicate; The outlet of the 4th one-way valve 2-2 communicates with the interface of the entrance of relief valve 5, the entrance of electricity liquid ratio relief valve 4 and pressure gauge 6; The outlet T of the outlet of relief valve 5 and electricity liquid ratio relief valve 4 communicates.
Proportional valve electron-amplifier 404 be contained in fuel tank on cover, the proportion electro-magnet lead-out wires of coil of electricity liquid ratio relief valve 4 is connected with the output line of Proportional valve electron-amplifier 404.
On fuel tank 505, be also provided with liquid-level switch K, air-strainer F and oil ga(u)ge Y.
Oil hydraulic pump 101 is arranged in fuel tank 505 by pump support-flange 808.
When cabin makes cabin revolution by one group of yaw motor by deviation drive device, this rotation motion is again by another set of driftage speedup box speedup again, its high speed shaft drives oil hydraulic pump to do High Rotation Speed, regulate again the excessive valve of electric-hydraulic proportion or relief valve, oil hydraulic pump is loaded, produce resisting moment, this resisting moment acts on cabin through the drive unit of high transmission ratio (such as i=10000), and the damping torque of amplifying like this 10000 times with regard to having formed acts on cabin.
System Working Principle of the present invention
From Fig. 5 and Fig. 6, just can represent the working principle of the hydraulic system of this damping device; When low speed when revolution done in the cabin of wind-powered electricity generation unit, through speedup box, make the oil hydraulic pump High Rotation Speed that just follows suit.The pressure or the regulation relief valve that regulate the next given electricity liquid ratio relief valve 4 of output current value i of Proportional valve electron-amplifier 404, the damping torque value in cabin is just determined by this pressure.The flow direction of liquid stream when Fig. 5 represents that oil hydraulic pump is rotated in the forward, as shown in black thick arrow body line, the flow direction of liquid stream when Fig. 5 represents oil hydraulic pump counterrotating, as shown in black bold arrow line.
The application's feature mainly contains:
1) for the yaw system of large-scale and super-huge wind-powered electricity generation unit, the mode of the generation damping torque that this patent is discussed is compared and is had basic difference and breakthrough with traditional mode by friction-loaded generation damping torque, its obvious advantage is: the one, and without wear-out part, have no way of fricative intense noise and vibration; The 2nd, damping device itself is easy to manufacture, easy to installation and maintenance, compact structure, reliable operation, long service life.
2) this damping device has adopted hydraulics and electro-hydraulic proportional control technology, the damping torque of cabin yawing rotation is regulated by electric liquid example relief valve or relief valve, it can combine with electronic technology and computer technology, advanced technology, the control characteristic (stable state and dynamic) of yawing rotation is improved, cabin is started and stops steadily, can improving the force-bearing situation of cabin and blower fan pylon simultaneously.
3) this damping device applicability is strong, and the other end that it can be arranged on again two shaft yaw motors makes to turn round cabin acquisition damping torque, can omit multiplying gear like this.
The damping device that the application relates to and be applied to the damping mode in the yaw system of wind power generating set, sees with domestic Zeng Wei abroad, and still belonging to blank ， China wind-powered electricity generation industry has wide market and application prospect.In addition, it can expand to be again applied in other field of engineering technology and goes.
Claims (5)
1. an electric-hydraulic proportion formula yaw damping device for wind-powered electricity generation unit, is characterized in that: this device is mainly passed in and out hydraulic manifold block (303), Proportional valve electron-amplifier (404) and the fuel tank (505) of oil pipe assembly (202), each hydraulic parts of interior plug-in mounting and electricity liquid ratio relief valve by oil hydraulic pump (101), pump; Oil hydraulic pump (101) and all pipelines are all placed in fuel tank, hydraulic manifold block (303) be arranged on fuel tank on cover, the flange of the high speed axle head of the lower flange disc of fuel tank and wind-powered electricity generation unit one driftage speedup box (111) is with bolt in succession; Pump turnover oil pipe assembly (202) is connected with oil hydraulic pump (101), and pump turnover oil pipe assembly (202) is communicated with fuel tank (505); Proportional valve electron-amplifier (404) is all connected with hydraulic manifold block (303) with oil hydraulic pump (101); Oil hydraulic pump (101) is connected with the axle (707) of driftage speedup box (111) by pump interlink joint (606).
2. the electric-hydraulic proportion formula yaw damping device of wind-powered electricity generation unit according to claim 1, is characterized in that: this device also comprises pressure gauge (6); In hydraulic manifold block (303), be provided with the first one-way valve (1-1), the second one-way valve (1-2), the 3rd one-way valve (2-1), the 4th one-way valve (2-2), two position two-way valve (3), electricity liquid ratio relief valve (4) and relief valve (5); The entrance of the first one-way valve (1-1) communicates with fuel tank (505), and the outlet of the first one-way valve (1-1) communicates with the entrance of first hydraulic fluid port (A) of oil hydraulic pump (101), the first (C) of two position two-way valve (3) and the 3rd one-way valve (2-1); The entrance of the 3rd outlet of one-way valve (2-1) and the entrance of relief valve (5), electricity liquid ratio relief valve (4) and the interface of pressure gauge (6) communicate; The outlet of the outlet of relief valve (5) and electricity liquid ratio relief valve (4) all communicates with fuel tank (505); The entrance of the second one-way valve (1-2) communicates with fuel tank (505), and the outlet of the second one-way valve (1-2) communicates with the entrance of second hydraulic fluid port (B) of oil hydraulic pump (101), second mouthful (D) of two position two-way valve (3) and the 4th one-way valve (2-2); The entrance of the 4th outlet of one-way valve (2-2) and the entrance of relief valve (5), electricity liquid ratio relief valve (4) and the interface of pressure gauge (6) communicate; The outlet (T) of the outlet of relief valve (5) and electricity liquid ratio relief valve (4) communicates.
3. the electric-hydraulic proportion formula yaw damping device of wind-powered electricity generation unit according to claim 2, it is characterized in that: Proportional valve electron-amplifier (404) be contained in fuel tank on cover, the proportion electro-magnet lead-out wires of coil of electricity liquid ratio relief valve (4) is connected with the output line of Proportional valve electron-amplifier (404).
4. the electric-hydraulic proportion formula yaw damping device of wind-powered electricity generation unit according to claim 1, is characterized in that: on fuel tank (505), be also provided with liquid-level switch (K), air-strainer (F) and oil ga(u)ge (Y).
5. the electric-hydraulic proportion formula yaw damping device of wind-powered electricity generation unit according to claim 1, is characterized in that: oil hydraulic pump (101) is arranged in fuel tank (505) by pump support-flange (808).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584831.3A CN103557118A (en) | 2013-11-20 | 2013-11-20 | Electric-hydraulic proportional yaw damping device of wind turbine generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310584831.3A CN103557118A (en) | 2013-11-20 | 2013-11-20 | Electric-hydraulic proportional yaw damping device of wind turbine generator |
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| CN103557118A true CN103557118A (en) | 2014-02-05 |
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| CN201310584831.3A Pending CN103557118A (en) | 2013-11-20 | 2013-11-20 | Electric-hydraulic proportional yaw damping device of wind turbine generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653949A (en) * | 2018-11-30 | 2019-04-19 | 中国船舶重工集团海装风电股份有限公司 | The wind generating set yaw method and system of yaw motor offer electromagnetic damping |
| CN112343953A (en) * | 2019-08-09 | 2021-02-09 | 沈阳鑫聚成风电工程机械有限公司 | Hydraulic damper drifts |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2206930A (en) * | 1987-07-14 | 1989-01-18 | Lawson Tancred H Sons & Co Sir | Wind turbine operating system |
| CN101644236A (en) * | 2009-08-27 | 2010-02-10 | 哈尔滨工业大学 | Electro-hydraulic brake system used on wind turbine generator |
| CN102562460A (en) * | 2011-12-29 | 2012-07-11 | 燕山大学 | Undamped hydraulic yaw system based on pressure detection and control method of undamped hydraulic yaw system |
| CN103148132A (en) * | 2013-03-04 | 2013-06-12 | 长沙理工大学 | Yaw brake hydraulic system for pressure loss prevention of wind turbine generator |
| CN203717239U (en) * | 2013-11-20 | 2014-07-16 | 沈阳工业大学 | Electric-hydraulic proportional yaw damping device of wind power generator set |
-
2013
- 2013-11-20 CN CN201310584831.3A patent/CN103557118A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2206930A (en) * | 1987-07-14 | 1989-01-18 | Lawson Tancred H Sons & Co Sir | Wind turbine operating system |
| CN101644236A (en) * | 2009-08-27 | 2010-02-10 | 哈尔滨工业大学 | Electro-hydraulic brake system used on wind turbine generator |
| CN102562460A (en) * | 2011-12-29 | 2012-07-11 | 燕山大学 | Undamped hydraulic yaw system based on pressure detection and control method of undamped hydraulic yaw system |
| CN103148132A (en) * | 2013-03-04 | 2013-06-12 | 长沙理工大学 | Yaw brake hydraulic system for pressure loss prevention of wind turbine generator |
| CN203717239U (en) * | 2013-11-20 | 2014-07-16 | 沈阳工业大学 | Electric-hydraulic proportional yaw damping device of wind power generator set |
Non-Patent Citations (1)
| Title |
|---|
| 王野牧、王莉、刘峰、吕东艳: "电液伺服阀的计算机控制与性能测试实验系统", 《沈阳工业大学学报》, vol. 19, no. 4, 31 August 1997 (1997-08-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653949A (en) * | 2018-11-30 | 2019-04-19 | 中国船舶重工集团海装风电股份有限公司 | The wind generating set yaw method and system of yaw motor offer electromagnetic damping |
| CN112343953A (en) * | 2019-08-09 | 2021-02-09 | 沈阳鑫聚成风电工程机械有限公司 | Hydraulic damper drifts |
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Application publication date: 20140205 |