CN111622894A - Yaw brake control system and control method - Google Patents
Yaw brake control system and control method Download PDFInfo
- Publication number
- CN111622894A CN111622894A CN202010686311.3A CN202010686311A CN111622894A CN 111622894 A CN111622894 A CN 111622894A CN 202010686311 A CN202010686311 A CN 202010686311A CN 111622894 A CN111622894 A CN 111622894A
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- China
- Prior art keywords
- hydraulic
- distributor
- brake
- oil
- yaw brake
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- Granted
Links
- 238000000034 method Methods 0.000 title claims description 9
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010248 power generation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
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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
- F03D7/00—Controlling wind motors
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
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- 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
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/329—Azimuth or yaw angle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/005—Force, torque, stress or strain
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a yaw brake control system which comprises a hydraulic station, hydraulic brakes, an oil outlet distributor and an oil return distributor, wherein an oil outlet of the hydraulic station is connected with a main port of the oil outlet distributor, branch ports of the oil outlet distributor are respectively connected with the hydraulic brakes, branch ports of the oil return distributor are respectively connected with the hydraulic brakes, and a main port of the oil return distributor is connected with an oil return port of the hydraulic station to finally form a hydraulic system loop. In the yaw brake control system, the hydraulic controllers are connected in parallel, oil paths among the brakes are in an independent state, and the failed or failed hydraulic brakes can be disconnected when part of the hydraulic brakes fail or break down, so that the normal operation of the rest of the hydraulic brakes is ensured, and the fan continues to operate.
Description
Technical Field
The invention relates to the field of wind power, in particular to a yaw brake control system and a yaw brake control method.
Background
In recent years, wind power generation technology is rapidly developed in China as a clean energy source which can be continuously developed and is free of pollution, and a large number of wind generating sets are installed in onshore and offshore areas of China. The yaw brake system is an important component of the wind generating set and is an indispensable safety component for normal operation of the set, if the yaw brake system has a problem, the wind generating set must be stopped for rectification, large generating capacity is lost during rectification, and great loss is caused for offshore sets which are difficult to arrange a maintenance period.
At present, most of fans adopt hydraulic disc brakes, and wind power yaw brakes have particularity under the use condition, and no matter the fans are in power generation or in a stop state, the brakes are always in a working state, and the brake often fails in a brake system under the long-time work. The brakes are often connected in series, when one brake fails, the whole hydraulic brake system is operated in a time-efficient manner, and particularly when the brake of an offshore wind turbine fails, a unit stops to cause large power generation loss.
Disclosure of Invention
In order to solve the technical problems, the invention provides a yaw brake control system which is simple in structure, safe and reliable, and provides a yaw brake control method.
The technical scheme for solving the problems is as follows: the utility model provides a driftage braking control system, includes hydraulic pressure station, hydraulic brake, oil outlet distributor, oil return distributor, the oil-out of hydraulic pressure station is connected with oil outlet distributor's total port, and oil outlet distributor's each branch port is connected with each hydraulic brake respectively, oil return distributor's each branch port is connected with each hydraulic brake respectively, and oil return distributor's total port is connected with hydraulic pressure station oil return opening, between hydraulic pressure station and the oil outlet distributor, between oil outlet distributor and the hydraulic brake, between hydraulic brake and the oil return distributor, all through the tube coupling between oil return distributor and the hydraulic pressure station, finally forms the hydraulic system return circuit.
In the yaw brake control system, the branch port of the oil return distributor and the branch port of the oil outlet distributor can be independently controlled to be opened and closed.
In the yaw brake control system, all the hydraulic brakes are connected without pipelines.
A yaw brake control method comprising the steps of:
1) when the fan initially runs, the yaw brake system performs pressure control, whether the pressure control of the yaw brake system is normal or not is judged, if the pressure control of the yaw brake system is normal, the step 2) is performed, and if the pressure control of the yaw brake system is not normal, the step 3) is performed;
2) the yaw brake system normally operates, operates according to consistent pressure control logic, and completes the control;
3) the yaw brake system carries out self-checking: order toi=1, go to step 4);
4) shielding other hydraulic brakes, only for the secondiThe pressure of the hydraulic brake is controlled and judgediWhether the pressure control of each hydraulic brake is normal or not, if so, entering a step 6), and if not, entering a step 5);
5) shield the firstiA hydraulic brake, and entering step 6);
6) judgment ofiWhether or not equal ton，nIf the total number of the hydraulic brakes in the yaw brake control system is equal to the total number of the hydraulic brakes in the yaw brake control system, entering a step 7); if not, then orderi=i+1, return to step 4);
7) after the corresponding hydraulic brake is shielded, calculating the residual braking torque, judging whether the residual braking torque meets the operation requirement, and if so, operating the fan normally or in a reduced power mode; if not, alarming and stopping the machine.
The invention has the beneficial effects that:
1. in the yaw brake control system, the hydraulic controllers are connected in parallel, oil paths among the brakes are in an independent state, and the failed or failed hydraulic brakes can be disconnected when part of the hydraulic brakes fail or break down, so that the normal operation of the rest of the hydraulic brakes is ensured, and the fan continues to operate.
2. According to the yaw brake control method, when the pressure control of the yaw control system is abnormal, self-checking is carried out, the failed or faulted hydraulic brake is shielded, the reliable operation of the rest hydraulic brakes is ensured, the normal or power-reduced operation of the fan is ensured under the condition that part of the hydraulic brakes fail, and the operation is more stable and reliable.
3. The invention can use brake pads with different materials or properties for different hydraulic brakes, and the low-noise brake pad hydraulic brake presses under pressure when in pressure operation, thereby reducing the yaw noise; the hydraulic brake can independently control pressure, and when the fan has a 'nodding' action, the hydraulic brake at a special position can be pressurized to offset extra external load, so that the aim of protecting other mechanical parts of the yaw system is fulfilled.
Drawings
FIG. 1 is a block diagram of a yaw brake control system according to the present invention.
FIG. 2 is a flow chart of a yaw brake control method of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, a yaw brake control system includes a hydraulic station 1, hydraulic lines 2, 4, 6, 8, 10, 11, 12, 14, 15, 16, 17, 19, 21, 23, hydraulic brakes 5, 7, 9, 18, 20, 22, an oil outlet distributor 3, and an oil return distributor 13, where an oil outlet of the hydraulic station 1 is connected to a total port of the oil outlet distributor 3 by the hydraulic line 2, and branch ports of the oil outlet distributor 3 are connected to hydraulic brakes 5, 7, 9, 18, 20, 22 by the lines 4, 6, 8, 19, 21, 23, respectively, and the hydraulic brakes are not connected by a line. The branch ports of the oil return distributor 13 are respectively connected with the hydraulic brakes 9, 7, 5, 22, 20 and 18 through pipelines 10, 11, 12, 14, 15, 16 and 17, and the total port of the oil return distributor 13 is connected with the oil return port of the hydraulic station 1 through a pipeline 17, so that a hydraulic system loop is finally formed. The branch port of the oil return distributor 13 and the branch port of the oil outlet distributor 3 can be controlled to be opened and closed independently.
A yaw brake control method comprising the steps of:
1) when the fan initially runs, the yaw brake system performs pressure control, whether the pressure control of the yaw brake system is normal or not is judged, if the pressure control of the yaw brake system is normal, the step 2) is performed, and if the pressure control of the yaw brake system is not normal, the step 3) is performed;
2) the yaw brake system normally operates, operates according to consistent pressure control logic, and completes the control;
3) the yaw brake system carries out self-checking: order toi=1, go to step 4);
4) shielding other hydraulic brakes, only for the secondiThe pressure of the hydraulic brake is controlled and judgediWhether the pressure control of each hydraulic brake is normal or not, if so, entering a step 6), and if not, entering a step 5);
5) shield the firstiA hydraulic brake, and entering step 6);
6) judgment ofiWhether or not equal ton，nIf the total number of the hydraulic brakes in the yaw brake control system is equal to the total number of the hydraulic brakes in the yaw brake control system, entering a step 7); if not, then orderi=i+1, return to step 4);
7) after the corresponding hydraulic brake is shielded, calculating the residual braking torque, judging whether the residual braking torque meets the operation requirement, and if so, operating the fan normally or in a reduced power mode; if not, alarming and stopping the machine.
It should be noted that, depending on the implementation requirements, the hydraulic brake system described in the present application may be implemented with split steps/components, and two or more steps/components may be recombined to achieve the object of the present invention.
Claims (4)
1. A yaw brake control system, characterized by: including hydraulic pressure station, hydraulic brake, oil distributor, oil return distributor, the oil-out of hydraulic pressure station is connected with oil distributor's total port, and oil distributor's each branch port is connected with each hydraulic brake respectively, and oil return distributor's total port is connected with the hydraulic pressure station oil return opening, between hydraulic pressure station and the oil distributor, between oil distributor and the hydraulic brake, between hydraulic brake and the oil distributor, all through the tube coupling between oil distributor and the hydraulic pressure station, finally forms the hydraulic system return circuit.
2. The yaw brake control system of claim 1, wherein: the branch port of the oil return distributor and the branch port of the oil outlet distributor can be controlled to be opened and closed independently.
3. The yaw brake control system of claim 1, wherein: and the hydraulic brakes are connected without pipelines.
4. A yaw brake control method based on the yaw brake control system of claim 1, comprising the steps of:
1) when the fan initially runs, the yaw brake system performs pressure control, whether the pressure control of the yaw brake system is normal or not is judged, if the pressure control of the yaw brake system is normal, the step 2) is performed, and if the pressure control of the yaw brake system is not normal, the step 3) is performed;
2) the yaw brake system normally operates, operates according to consistent pressure control logic, and completes the control;
3) the yaw brake system carries out self-checking: order toi=1, go to step 4);
4) shielding other hydraulic brakes, only for the secondiThe pressure of the hydraulic brake is controlled and judgediWhether the pressure control of each hydraulic brake is normal or not, if so, entering a step 6), and if not, entering a step 5);
5) shield the firstiA hydraulic brake, and entering step 6);
6) judgment ofiWhether or not equal ton，nThe total number of the hydraulic brakes in the yaw brake control system,if yes, entering step 7); if not, then orderi=i+1, return to step 4);
7) after the corresponding hydraulic brake is shielded, calculating the residual braking torque, judging whether the residual braking torque meets the operation requirement, and if so, operating the fan normally or in a reduced power mode; if not, alarming and stopping the machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010686311.3A CN111622894B (en) | 2020-07-16 | 2020-07-16 | Yaw brake control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010686311.3A CN111622894B (en) | 2020-07-16 | 2020-07-16 | Yaw brake control system and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111622894A true CN111622894A (en) | 2020-09-04 |
| CN111622894B CN111622894B (en) | 2021-08-10 |
Family
ID=72257760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010686311.3A Active CN111622894B (en) | 2020-07-16 | 2020-07-16 | Yaw brake control system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111622894B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006307653A (en) * | 2005-04-26 | 2006-11-09 | Fuji Heavy Ind Ltd | Horizontal axial windmill |
| CN102052242A (en) * | 2010-12-31 | 2011-05-11 | 浙江大学 | Method for reducing noises by adjusting yaw braking forces of wind turbine |
| CN102352823A (en) * | 2010-05-19 | 2012-02-15 | 特雷布技术有限公司 | Oil brake system used for locking position of engine room of wind turbine |
| CN204553632U (en) * | 2015-03-18 | 2015-08-12 | 天津市精研工程机械传动有限公司 | Wind generating set yaw hydraulic braking system |
-
2020
- 2020-07-16 CN CN202010686311.3A patent/CN111622894B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006307653A (en) * | 2005-04-26 | 2006-11-09 | Fuji Heavy Ind Ltd | Horizontal axial windmill |
| CN102352823A (en) * | 2010-05-19 | 2012-02-15 | 特雷布技术有限公司 | Oil brake system used for locking position of engine room of wind turbine |
| CN102052242A (en) * | 2010-12-31 | 2011-05-11 | 浙江大学 | Method for reducing noises by adjusting yaw braking forces of wind turbine |
| CN204553632U (en) * | 2015-03-18 | 2015-08-12 | 天津市精研工程机械传动有限公司 | Wind generating set yaw hydraulic braking system |
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| Publication number | Publication date |
|---|---|
| CN111622894B (en) | 2021-08-10 |
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