CN110118153B - Wind power generator control method and method for acquiring wind energy - Google Patents
Wind power generator control method and method for acquiring wind energy Download PDFInfo
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- CN110118153B CN110118153B CN201810108624.3A CN201810108624A CN110118153B CN 110118153 B CN110118153 B CN 110118153B CN 201810108624 A CN201810108624 A CN 201810108624A CN 110118153 B CN110118153 B CN 110118153B
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000010248 power generation Methods 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000011068 loading method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
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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
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The embodiment of the invention relates to the field of wind power generation, and provides a wind power generator control method and a wind energy acquisition method, wherein the wind power generator control method and the wind energy acquisition method are suitable for a double-duct vertical axis wind power generator, and the wind power generator control method comprises the following steps: a starting method, a stopping method, a load reducing method, a load adding method and an emergency stopping method of a double-duct vertical axis wind turbine are provided, and the wind energy obtaining method comprises the following steps: the method is characterized in that an energy conversion device is installed on a flow path of an air flow flowing out of the outer duct and then entering the inner duct to obtain wind energy, and an air flow control device is installed on a flow path of an air flow flowing out of the outer duct and then entering the inner duct to control the wind energy conversion rate.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a control method of a wind driven generator and a method for acquiring wind energy.
Background
With the development of wind power generation technology and the emergence of a double-duct vertical axis wind turbine, in order to meet the normal operation of a double-duct vertical axis wind turbine, a control method is urgently needed to guide and control each component in the double-duct vertical axis wind turbine, so that the double-duct vertical axis wind turbine can safely and stably operate.
Disclosure of Invention
The invention aims to provide a control method of a double-duct vertical axis wind driven generator and a method for acquiring wind energy, so that the double-duct vertical axis wind driven generator can safely and stably operate.
The invention is suitable for a double-duct vertical axis wind turbine, and the double-duct vertical axis wind turbine is characterized by comprising the following components:
a dual ducted vertical axis wind turbine comprising: the system comprises an inner duct, an outer duct, an airflow flow control device, an energy conversion device, a standby airflow flow control device and a generator cabin.
The outer culvert is used for absorbing wind energy, the outer culvert is polygonal in shape of an upper bottom surface and a lower bottom surface, the side edges are prism-like platforms of a combination line of a straight line and a curve, or the upper bottom surface and the lower bottom surface are circular, the generatrix is a circular-like platform of the combination line of the straight line and the curve, and the area of the upper bottom surface of the outer culvert is larger than that of the lower bottom surface of the outer culvert.
The inner culvert is used for absorbing wind energy, the inner culvert is polygonal in shape of upper bottom surface and lower bottom surface, the side edges are edge-like platforms of straight lines and curved combined lines, or the upper bottom surface and the lower bottom surface are circular, the bus is a round platform of straight lines and curved combined lines, the area of the upper bottom surface of the inner culvert is larger than that of the lower bottom surface of the inner culvert, the inner culvert is nested inside the outer culvert shell, the inner culvert is connected with the outer culvert through the outer culvert partition plate, and the inner culvert partition plate divides the inner culvert into a plurality of inner culvert sub-culverts to improve the wind energy utilization rate.
The airflow control device is used for adjusting the power of the double-duct vertical axis wind driven generator and controlling the starting and stopping of the double-duct vertical axis wind driven generator, and the airflow control device is arranged on the flow path of airflow flowing out of the outer duct and then entering the inner duct.
The standby airflow flow control device is used for adjusting the power of the double-duct vertical axis wind turbine and controlling the double-duct vertical axis wind turbine to start and stop, the airflow flow control device and the standby airflow flow control device are mutually standby, in an emergency, the wind turbine control system can simultaneously close the airflow flow control device and the standby airflow flow control device, and the standby airflow flow control device is arranged on a flow track of airflow flowing out of the outer duct and then entering the inner duct.
The energy conversion device is used for absorbing wind energy, converting the wind energy into energy in other forms and then transmitting the energy to the generator cabin, and the energy conversion device is arranged on a flow path of airflow flowing out of the outer duct and then entering the inner duct.
The generator cabin is used for absorbing energy generated by the energy conversion device and converting the energy into alternating current capable of being connected to the grid, and is installed below the outer duct.
The invention mainly comprises the following aspects:
and when the double-duct vertical axis wind turbine is in a shutdown state and the current wind condition has a starting condition, starting the double-duct vertical axis wind turbine.
And when the double-duct vertical axis wind turbine receives a shutdown command or the current wind condition does not meet the power generation condition, the double-duct vertical axis wind turbine is shut down.
And when the double-duct vertical axis wind turbine receives a load reduction command, reducing the load of the double-duct vertical axis wind turbine.
And when the double-duct vertical axis wind turbine receives a loading command, loading the double-duct vertical axis wind turbine.
When the double-duct vertical axis wind turbine fails, the step of emergency shutdown of the double-duct vertical axis wind turbine
Description of the drawings:
the invention may be better understood from the following description of specific embodiments thereof taken in conjunction with the accompanying drawings, in which: other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings in which like or similar reference characters refer to the same or similar parts.
FIG. 1 is a main view and a related part sectional view of a double-duct vertical axis wind turbine.
In fig. 1: 1. An inner duct; 2. the upper bottom surface of the inner culvert; 3. an outer duct airflow inlet; 4. the upper bottom surface of the outer duct; 5. an outer duct; 6. the lower bottom surface of the inner culvert; 7. a backup airflow flow control device; 8. an energy conversion device; 9. an airflow flow control device; 10. an outer duct airflow outlet; 11. the lower bottom surface of the outer duct; 12. a generator compartment; 16. an outer duct baffle; 17. an inner culvert baffle; 18. an outer ducted housing.
The specific implementation mode is as follows:
features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. In the drawings, the thickness of regions and layers may be exaggerated for clarity. The same reference numerals denote the same or similar structures in the drawings, and thus detailed descriptions thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
Technical terms related to the embodiments of the present invention:
polygonal: the figure formed by connecting a plurality of straight lines end to end or a plurality of curves end to end or a plurality of straight lines and a plurality of curves end to end.
The invention is suitable for a double-duct vertical axis wind turbine, and the double-duct vertical axis wind turbine is characterized by comprising the following components:
as shown in fig. 1, a dual-duct vertical axis wind turbine includes: the system comprises an inner duct 1, an outer duct 5, an airflow control device 9, an energy conversion device 8, a standby airflow control device 7 and a generator cabin 12.
The outer culvert 5 is used for absorbing wind energy, the outer culvert 5 is polygonal in shape of an upper bottom surface and a lower bottom surface, side edges are frustum-shaped like a straight line and a curved combined line, or the upper bottom surface and the lower bottom surface are circular, a bus is a frustum-shaped like a straight line and a curved combined line, and the area of the upper bottom surface 4 of the outer culvert is larger than that of the lower bottom surface 11 of the outer culvert.
And the airflow control device 9 is used for adjusting the power of the double-culvert vertical axis wind turbine and controlling the starting and stopping of the double-culvert vertical axis wind turbine, and the airflow control device 9 is arranged on the flow path of the airflow flowing out of the outer culvert 5 and then entering the inner culvert 1.
And the standby airflow flow control device 7 is used for adjusting the power of the double-culvert vertical axis wind turbine and controlling the starting and stopping of the double-culvert vertical axis wind turbine, the airflow flow control device 9 and the standby airflow flow control device 7 are standby mutually, in an emergency situation, the wind turbine control system simultaneously closes the airflow flow control device 9 and the standby airflow flow control device 7, and the standby airflow flow control device 7 is arranged on the flow path of airflow flowing out of the outer culvert 5 and then entering the inner culvert 1.
An energy conversion device 8 for absorbing wind energy and converting the wind energy into other forms of energy and then transferring the energy to a generator compartment 12, said energy conversion device 8 being arranged in the flow path of the airflow exiting from said extraduct 5 and then entering said endoprosthesis 1.
The generator room 12 is used for absorbing the energy generated by the energy conversion device 8 and converting the energy into grid-connected alternating current, the generator room 12 is installed below the outer duct, and grid-connected equipment and a wind turbine control system are installed in the generator room.
According to the airflow trend of the double-culvert vertical axis wind driven generator, airflow enters from the outer-culvert airflow inlet 3, enters from the outer-culvert airflow outlet 10 into the airflow flow control device 9, enters from the airflow flow control device 9 into the energy conversion device 8, enters from the energy conversion device 8 into the standby airflow flow control device 7, enters from the standby airflow flow control device 7 into the inner-culvert airflow inlet 6, enters from the inner-culvert airflow inlet 6 into the inner culvert, and then flows out from the inner-culvert airflow outlet 2.
An embodiment of the present invention includes:
the starting method comprises the following steps: when the double-duct vertical axis wind turbine is in a shutdown non-fault state and the external wind condition has a starting condition or the airflow pressure of the lower bottom surface 11 of the external duct reaches a starting pressure, the control system of the wind turbine detects whether the standby airflow flow control device 7 is opened or not, if not, the wind power generator control system will issue a command to open the standby airflow flow control device 7, after the standby airflow flow control device 7 is completely opened, the wind power generator control system will issue a command to open the airflow flow control device 9, and after the airflow flow control device 9 is opened, the energy conversion device 8 starts to work, the energy conversion device 8 sends energy to the generator cabin 12, when electric energy generated by equipment in the generator cabin 12 has grid-connection conditions, grid-connection equipment in the generator cabin 12 is used for grid connection, and the double-duct vertical axis wind driven generator enters a grid-connection operation state.
The shutdown method comprises the following steps: when the double-duct vertical axis wind turbine is in an operating or grid-connected state, if an external wind condition does not meet a power generation condition or the current power is negative power or an external shutdown instruction is received, the wind turbine control system can issue a command for closing the airflow flow control device 9 or the standby airflow flow control device 7, after the airflow flow control device 9 or the standby airflow flow control device 7 is closed and the current power is less than or equal to 0, the wind turbine control system can issue a grid disconnection command to grid-connected equipment inside the generator cabin 12, and after the grid-connected equipment inside the generator cabin 12 completes the grid disconnection command, the double-duct vertical axis wind turbine completes shutdown.
The load reduction method comprises the following steps: when the double-duct vertical axis wind turbine is in an operation or grid-connected state, if a wind turbine control system receives a load reduction command, the wind turbine control system sends a flow reduction command to the airflow flow control device 9 or the standby airflow flow control device 7, and after the airflow flow control device 9 or the standby airflow flow control device 7 receives the flow reduction command, the airflow flow control device 9 or the standby airflow flow control device 7 reduces the opening amplitude of internal equipment, reduces the airflow flow, and accordingly reduces the energy output of the energy conversion device 8.
The loading method comprises the following steps: when the double-duct vertical axis wind turbine is in an operating or grid-connected state, if the wind turbine control system receives a load command, the wind turbine control system detects the opening amplitudes of the airflow flow control device 9 and the standby airflow flow control device 7, if the airflow flow control device 9 or the standby airflow flow control device 7 is not completely opened, the wind turbine control system sends the load command to the airflow flow control device 9 or the standby airflow flow control device 7, and after the airflow flow control device 9 or the standby airflow flow control device 7 executes the load command, the load output of the corresponding energy conversion device 8 is increased.
The emergency shutdown method comprises the following steps: when the wind driven generator control system detects that a certain part of the double-duct vertical axis wind driven generator is abnormal or has a fault, the wind driven generator control system sends a closing command to the airflow flow control device 9 and the standby airflow flow control device 7 and sends a grid disconnection command to grid-connected equipment inside the generator cabin 12, and after the airflow flow control device 9 and the standby airflow flow control device 7 are closed and the grid-connected equipment inside the generator cabin 12 is disconnected, the double-duct vertical axis wind driven generator is in a fault shutdown state.
Claims (4)
1. A wind driven generator control method is suitable for a double-duct vertical axis wind driven generator, and the double-duct vertical axis wind driven generator comprises the following steps: the power generation system comprises an inner duct (1), an outer duct (5), an energy conversion device (8), a generator room (12), an outer duct partition plate (16), an inner duct partition plate (17) and an outer duct shell (18); the inner duct (1) is nested in the outer duct shell (18), and the inner duct (1) is connected with the outer duct (5) through the outer duct partition plate (16); the inner culvert partition plates (17) divide the inner culvert (1) into a plurality of inner culvert sub-culverts; installing the energy conversion device (8) on the flow trajectory of the airflow flowing out of the outer duct (5) and then into the inner duct (1); the generator compartment (12) is located below the energy conversion device (8); the method is characterized in that:
s1, installing an airflow flow control device (9) on the flow path of the airflow flowing out of the outer duct (5) and then entering the inner duct (1); the airflow flow control device (9) is located between the generator compartment (12) and the energy conversion device (8);
s2: installing a standby airflow flow control device (7) on the flow path of the airflow flowing out of the outer duct (5) and then entering the inner duct (1); the standby airflow flow control device (7) is positioned between the energy conversion device (8) and the airflow inlet of the inner duct (1);
s3: controlling the airflow flow control device (9), the standby airflow flow control device (7) and grid-connected equipment inside the generator cabin (12) through a wind turbine control system to complete the starting of the double-duct vertical axis wind turbine;
s4: and the wind driven generator control system controls the airflow flow control device (9) or the standby airflow flow control device (7) and the grid-connected equipment in the generator cabin (12) to complete the shutdown of the double-duct vertical axis wind driven generator.
2. A wind power generator control method according to claim 1, characterized by:
the starting method comprises the following steps: when the double-duct vertical axis wind turbine has a starting condition, the wind turbine control system firstly controls and starts the standby airflow flow control device (7) and then controls and starts the airflow flow control device (9), and when the electric energy output by the internal equipment of the generator cabin (12) has a grid-connected condition, the wind turbine control system controls the grid-connected equipment in the generator cabin (12) to complete grid connection.
3. A wind power generator control method according to claim 1, characterized by:
the shutdown method comprises the following steps: when the double-duct vertical axis wind turbine has a shutdown condition or receives a shutdown command, the wind turbine control system controls and closes the standby airflow flow control device (7) or the airflow flow control device (9), and when the power is less than or equal to 0, the wind turbine control system controls the grid-connected equipment in the generator cabin (12) to complete off-grid.
4. A method for obtaining wind energy is suitable for a double-duct vertical axis wind turbine, the double-duct vertical axis wind turbine is controlled by the wind turbine control method of any one of claims 1 to 3, and the method is characterized in that an energy conversion device (8) is arranged on a flow path of an air flow flowing out of an outer duct (5) and then entering an inner duct (1) to obtain the wind energy; a method for controlling the wind energy conversion rate by installing an airflow flow control device (9) on the flow path of the airflow flowing out of the outer duct (5) and then entering the inner duct (1);
the air flow direction is as follows: the airflow enters from an outer duct airflow inlet of the outer duct (5) vertically downwards, enters from an outer duct airflow outlet of the outer duct (5) vertically downwards into the airflow flow control device (9), enters from the airflow flow control device (9) into the energy conversion device (8), enters from the energy conversion device (8) into the standby airflow flow control device (7), enters from the standby airflow flow control device (7) into an inner duct airflow inlet of the inner duct (1), vertically upwards enters from an inner duct airflow inlet of the inner duct (1) into the inner duct (1), and then flows out from an inner duct airflow outlet of the inner duct (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108624.3A CN110118153B (en) | 2018-02-05 | 2018-02-05 | Wind power generator control method and method for acquiring wind energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810108624.3A CN110118153B (en) | 2018-02-05 | 2018-02-05 | Wind power generator control method and method for acquiring wind energy |
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| CN110118153B true CN110118153B (en) | 2021-07-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463801A (en) * | 2009-01-08 | 2009-06-24 | 彭坚宁 | Airflow power generation system and method |
| CN201386621Y (en) * | 2009-03-13 | 2010-01-20 | 东莞市金鑫智能机械设备有限公司 | Vertical regeneration wind-energy driven generator |
| CN203321745U (en) * | 2013-05-22 | 2013-12-04 | 江苏中蕴风电科技有限公司 | Double-duct axial-flow type wind power generation system |
| CN105649883A (en) * | 2016-03-11 | 2016-06-08 | 广州华新科实业有限公司 | Wind power coupling balanced power generating method and system assisted by heat energy wind generation |
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2018
- 2018-02-05 CN CN201810108624.3A patent/CN110118153B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463801A (en) * | 2009-01-08 | 2009-06-24 | 彭坚宁 | Airflow power generation system and method |
| CN201386621Y (en) * | 2009-03-13 | 2010-01-20 | 东莞市金鑫智能机械设备有限公司 | Vertical regeneration wind-energy driven generator |
| CN203321745U (en) * | 2013-05-22 | 2013-12-04 | 江苏中蕴风电科技有限公司 | Double-duct axial-flow type wind power generation system |
| CN105649883A (en) * | 2016-03-11 | 2016-06-08 | 广州华新科实业有限公司 | Wind power coupling balanced power generating method and system assisted by heat energy wind generation |
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