CN112610428B - Wind turbine generator system shadow suppression system and method - Google Patents
Wind turbine generator system shadow suppression system and method Download PDFInfo
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- CN112610428B CN112610428B CN202011438050.XA CN202011438050A CN112610428B CN 112610428 B CN112610428 B CN 112610428B CN 202011438050 A CN202011438050 A CN 202011438050A CN 112610428 B CN112610428 B CN 112610428B
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- wind turbine
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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
- F03D80/20—Arrangements for avoiding shadow flicker
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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 discloses a system and a method for restraining shadow of a wind turbine generator, wherein the system comprises a time synchronization device, a positioning device, a light intensity detection device, a lighting device and a controller which are arranged in the wind turbine generator, a database is arranged in the controller, and geographic information of a region, which is around the wind turbine generator and is to be prevented from being polluted by the shadow, is prestored in the database.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a system and a method for restraining light and shadow of a wind turbine generator.
Background
Wind power is a clean energy and is a new energy which is vigorously developed in the country in recent years. In the past, wind power projects are mainly distributed in areas with scarce human smoke, but with continuous development of onshore wind resources, part of wind power plant areas are endangered or related to residential areas or natural protection areas, particularly in recent years, application and construction of distributed wind power, and the influence of light and noise is not negligible.
The wind turbine generator light shadow pollution refers to low-frequency light shadow flicker caused by the fact that projections of running wind turbine generator impellers on the ground periodically sweep over areas where people and livestock are located under the condition of light irradiation. As a novel environmental pollution, wind power light and shadow pollution, if not controlled, causes discomfort of sensitive people, and may also have adverse effects on human health, economic culture, animal survival and the like in severe cases.
In order to reduce the light and shadow pollution caused by the running of the wind turbine generator, some methods have been proposed in the prior art, for example, the Chinese patent application with the application number of 201910990644.2 discloses a light and shadow control method and a system thereof for a wind turbine generator, which can reduce the light and shadow pollution influence caused by the running of a fan to a certain extent, but cannot completely eliminate the light and shadow pollution influence, and meanwhile, the prior art reduces the light and shadow pollution influence caused by the running of the fan to a certain extent by controlling the shutdown of the wind turbine generator, which can generate adverse influence on the generating efficiency of the wind turbine generator.
Disclosure of Invention
The invention aims to design a brand-new wind turbine generator light and shadow suppression system and a corresponding method so as to achieve the purpose of reducing the light and shadow pollution of the wind turbine generator to the maximum extent under the condition of not influencing the power generation efficiency and the economic benefit.
Therefore, in one aspect of the invention, the wind turbine generator shadow suppression system is provided and applied to a wind turbine generator, the wind turbine generator comprises an impeller system, a yaw system, a control system, a wind condition acquisition device and a tower, the wind turbine generator shadow suppression system comprises a time synchronization device, a positioning device, an illumination intensity detection device, an illumination device and a controller which are arranged in the wind turbine generator, a database is arranged in the controller, and geographic information of a region around the wind turbine generator where shadow pollution should be avoided is prestored in the database.
Preferably, in the above wind turbine generator shadow suppression system, the time synchronization device and the positioning device are integrated in the control system.
Optionally, in the above wind turbine light and shadow suppression system, the time synchronization device and the positioning device are independently configured in the wind turbine and transmit data in a communication manner with the control system.
Preferably, in the above wind turbine generator shadow suppression system, the illumination intensity detection device is disposed on a support of the wind condition collection device.
Preferably, in the above wind turbine generator light shadow suppression system, the lighting device is disposed below a tail of a wind turbine generator nacelle cover and at a central position of the impeller system.
Preferably, in the above wind turbine light and shadow suppression system, the controller is the control system itself of the wind turbine.
Optionally, in the above wind turbine generator shadow suppression system, the controller is an independent controller and transmits data in a communication manner with the control system.
In addition, in another aspect of the present invention, a wind turbine shadow suppression method implemented by using the wind turbine shadow suppression system is provided, where the wind turbine shadow suppression method includes the following steps:
s11, acquiring the current time by the time synchronization device by acquiring and synchronizing the accurate time of the wind turbine generator;
s12, determining the geographic coordinates of the wind turbine generator by the positioning device, wherein the geographic coordinates comprise the longitude, the latitude and the altitude of the wind turbine generator;
s13, the controller determines the sun irradiation angle according to the current time and the geographic coordinates of the wind turbine generator;
s14, the controller acquires the diameter of the impeller of the wind turbine generator and the height of the tower;
s15, determining a real-time projection area of the impeller on the ground according to the sun irradiation angle determined in the step S13, the diameter of the impeller obtained in the step S14 and the height of the tower barrel by the controller;
s16, the controller calls geographical information of a region where light and shadow pollution is to be avoided around the wind turbine generator and prestored in a database of the controller;
s17, the controller calculates the intersection of the real-time projection area determined in the step S15 and the area which is called in the step S16 and is to avoid the light and shadow pollution, and the intersection is set as the area which the lighting device is to work;
and S18, operating the lighting device, and lighting the area where the lighting device should operate to compensate and eliminate the light shadow.
Preferably, in the wind turbine generator system shadow suppression method, the step S18 includes the following sub steps:
s181, the controller determines whether the intersection calculated in the step S17 is empty, and if the intersection is empty, the controller jumps to the step S182; if the intersection is not empty, jumping to step S183;
s182, the lighting device is in a standby state without work;
s183, the controller detects whether the wind turbine generator is in an operating state, and if the wind turbine generator is in a non-operating state, the step S182 is skipped to; if the wind turbine generator is in the running state, jumping to step S184;
s184, detecting the current illumination intensity of the external environment by an illumination intensity detection device;
s185, the controller judges whether the current external environment illumination intensity is greater than a preset threshold value, and if the current external environment illumination intensity is not greater than the preset threshold value, the step S182 is skipped to; if the current external environment illumination intensity is greater than the preset threshold value, jumping to step S186;
and S186, the lighting device is in a working state.
Preferably, in the method for suppressing the wind turbine generator lighting shadow, in step S186, the illumination intensity of the lighting device may be kept fixed, or may be dynamically adjusted according to the illumination intensity of the external environment detected in step S184; the illumination angle of the lighting device may be kept fixed, or may be dynamically adjusted according to the data obtained in steps S13, S14, and S17.
According to the system and the method for restraining the shadow of the wind turbine generator set, the shadow restraining system is added in the existing wind turbine generator set, the corresponding control method is adopted for the wind turbine generator set under different time, place and operation conditions, the illumination compensation and elimination are carried out on the shadow generated by the impeller irradiated by sunlight, and the shadow pollution minimization during the operation of the wind turbine generator set can be ensured on the premise of not influencing the power generation efficiency and the economic benefit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a wind turbine generator shadow suppression system according to the present invention;
FIG. 2 is a schematic flow chart of a wind turbine generator shadow suppression method according to the present invention;
fig. 3 is a schematic working flow diagram of the lighting device in the wind turbine light and shadow suppression method of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The wind turbine generator shadow suppression system is applied to a wind turbine generator, and as shown in fig. 1, the wind turbine generator comprises an impeller system 1, a yaw system 2, a control system 3, a wind condition acquisition device 4 and a tower 5, and the wind turbine generator shadow suppression system comprises a time synchronization device 6, a positioning device 7, an illumination intensity detection device 8, an illumination device 9 and a controller which are arranged in the wind turbine generator.
The time synchronization device 6 and the positioning device 7 may be integrated into the control system 3, or may be independently configured at any other position in the wind turbine generator and communicate with the control system 3 to transmit data.
The illumination intensity detection device 8 may be disposed on a bracket of the wind condition collection device 4, for example, or may be disposed in any other position of the wind turbine that can irradiate sunlight.
The lighting device 9 is arranged below the tail part of the wind turbine generator cabin cover and is positioned at the central position of the impeller system 1, and the lighting device 9 can be arranged at any position capable of irradiating and covering a light and shadow pollution area in a tower mode and the like. The number of the lighting devices 9 is not limited and can be freely selected according to actual conditions. The brightness of the lighting device 9 is fixed or adjustable, and the illumination angle of the lighting device 9 is fixed or adjustable in a pan-tilt-zoom manner.
The controller may be the control system 3 itself of the wind turbine, or the controller may also take the form of a separate controller and communicate data with the control system 3. The controller is internally provided with a database, and the database is prestored with geographical information of areas, where the periphery of the wind turbine generator is to be prevented from being polluted by light and shadow.
As shown in fig. 2, a specific embodiment of the method for suppressing light and shadow of a wind turbine generator according to the present invention includes the following steps:
s11, acquiring the current time by the time synchronization device 6 by acquiring and synchronizing the accurate time of the wind turbine generator;
s12, determining the geographic coordinates of the wind turbine generator by the positioning device 7, wherein the geographic coordinates comprise the longitude, the latitude and the altitude of the wind turbine generator;
s13, the controller determines the sun irradiation angle according to the current time and the geographic coordinates of the wind turbine generator;
s14, the controller acquires the diameter of the impeller of the wind turbine generator and the height of the tower;
s15, determining a real-time projection area of the impeller on the ground according to the sun irradiation angle determined in the step S13, the diameter of the impeller obtained in the step S14 and the height of the tower barrel by the controller;
s16, the controller calls geographical information of a region where light and shadow pollution is to be avoided around the wind turbine generator and prestored in a database of the controller;
s17, the controller calculates the intersection of the real-time projection area determined in the step S15 and the area which is called in the step S16 and is to avoid the light and shadow pollution, and the intersection is set as the area which the lighting device is to work;
s18, the lighting device 9 works to illuminate the area where the lighting device should work to compensate and eliminate the light shadow.
Preferably, in step S18, the lighting device 9 operates according to whether the intersection between the real-time projection area of the impeller on the ground and the area to be protected from light and shadow pollution is empty, the operating state of the wind turbine generator, and the external environment illumination intensity, so step S18 includes the following sub-steps:
s181, the controller judges whether the intersection calculated in the step S17 is empty, and if the intersection is empty, namely the real-time projection area of the impeller on the ground is not in the area to be prevented from being polluted by light and shadow, the controller jumps to the step S182; if the intersection is not empty, that is, the real-time projection area of the impeller on the ground is at least partially in the area where light and shadow pollution should be avoided, jumping to step S183;
s182, the lighting device 9 is in a standby state without work;
s183, the controller detects whether the wind turbine generator is in an operating state, and if the wind turbine generator is in a non-operating state, the step S182 is skipped to; if the wind turbine generator is in the running state, jumping to step S184;
s184, detecting the current illumination intensity of the external environment by the illumination intensity detection device 8;
s185, the controller judges whether the current external environment illumination intensity is greater than a preset threshold value, and if the current external environment illumination intensity is not greater than the preset threshold value, the step S182 is skipped to; if the current external environment illumination intensity is greater than the preset threshold value, jumping to step S186;
s186, the lighting device 9 is in the working state.
Preferably, in step S186, the illumination intensity of the lighting device 9 may be kept fixed, or may be dynamically adjusted according to the ambient illumination intensity detected in step S184.
Preferably, in step S186, the illumination angle of the lighting device 9 may be kept fixed, or may be dynamically adjusted according to the data obtained in steps S13, S14, and S17.
According to the system and the method for restraining the shadow of the wind turbine generator set, the shadow restraining system is added in the existing wind turbine generator set, the corresponding control method is adopted for the wind turbine generator set under different time, place and operation conditions, the illumination compensation and elimination are carried out on the shadow generated by the impeller irradiated by sunlight, and the shadow pollution minimization during the operation of the wind turbine generator set can be ensured on the premise of not influencing the power generation efficiency and the economic benefit.
It is to be noted that, in this document, the term "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion, so that an article or an apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Meanwhile, the term "connected" and the like as used herein should be broadly interpreted as referring to a fixed connection, a detachable connection, a direct connection, or an indirect connection through intermediate components. In addition, "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like are referred to herein as being placed in the state shown in the drawings.
It should be further noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or alterations do not depart from the spirit of the invention.
Claims (7)
1. A wind turbine generator system shadow suppression system is applied to a wind turbine generator system, and the wind turbine generator system comprises an impeller system, a yaw system, a control system, a wind condition acquisition device and a tower barrel and is characterized by comprising a time synchronization device, a positioning device, a light intensity detection device, a lighting device and a controller which are arranged in the wind turbine generator system, wherein a database is arranged in the controller, and geographic information of a region where the periphery of the wind turbine generator system is prevented from being polluted by shadows is prestored in the database;
the illumination intensity detection device is arranged on the bracket of the wind condition acquisition device;
the illumination device is arranged below the tail part of the wind turbine generator cabin cover and is positioned at the central position of the impeller system, and when the illumination device works, the illumination device illuminates a working area of the illumination device to compensate and eliminate light and shadow;
the controller determines a real-time projection area of the impeller on the ground according to the sun irradiation angle, the diameter of the impeller and the height of the tower drum, calls geographic information of a region, where light and shadow pollution is to be avoided, around the wind turbine generator pre-stored in a database of the controller, calculates an intersection of the real-time projection area and the region, where the light and shadow pollution is to be avoided, and sets the intersection as a working area of the lighting device; the controller judges whether the calculated intersection is empty, if the intersection is empty, the lighting device is in a standby state without work; if the intersection is not empty, the controller detects whether the wind turbine generator is in an operating state, and if the wind turbine generator is in a non-operating state, the lighting device is in a standby state without operation; if the wind turbine generator is in the running state, the illumination intensity detection device detects the current illumination intensity of the external environment, the controller judges whether the current illumination intensity of the external environment is greater than a preset threshold value, and if the current illumination intensity of the external environment is not greater than the preset threshold value, the lighting device is in the idle state; and if the current external environment illumination intensity is greater than the preset threshold value, the lighting device is in a working state.
2. The wind turbine generator light shadow suppression system according to claim 1, wherein the time synchronization device and the positioning device are integrated in the control system.
3. The wind turbine generator system shadow suppression system according to claim 1, wherein the time synchronization device and the positioning device are independently configured in the wind turbine generator system and communicate data with the control system.
4. The wind turbine generator light shadow suppression system according to claim 1, wherein the controller is the control system itself of the wind turbine generator.
5. The wind turbine generator light shadow suppression system according to claim 1, wherein the controller is an independent controller and communicates with the control system to transmit data.
6. A wind turbine generator shadow suppression method implemented by using the wind turbine generator shadow suppression system according to any one of claims 1 to 5, characterized by comprising the following steps:
s11, acquiring the current time by the time synchronization device by acquiring and synchronizing the accurate time of the wind turbine generator;
s12, determining the geographic coordinates of the wind turbine generator by the positioning device, wherein the geographic coordinates comprise the longitude, the latitude and the altitude of the wind turbine generator;
s13, the controller determines the sun irradiation angle according to the current time and the geographic coordinates of the wind turbine generator;
s14, the controller acquires the diameter of the impeller of the wind turbine generator and the height of the tower;
s15, determining a real-time projection area of the impeller on the ground according to the sun irradiation angle determined in the step S13, the diameter of the impeller obtained in the step S14 and the height of the tower barrel by the controller;
s16, the controller calls geographical information of a region where light and shadow pollution is to be avoided around the wind turbine generator and prestored in a database of the controller;
s17, the controller calculates the intersection of the real-time projection area determined in the step S15 and the area which is called in the step S16 and is to avoid the light and shadow pollution, and the intersection is set as the area where the lighting device is to work;
s18, the lighting device works, and the lighting device is used for lighting the working area to compensate and eliminate light shadow;
wherein the step S18 includes the following sub-steps:
s181, the controller judges whether the intersection calculated in the step S17 is empty, and if the intersection is empty, the control method goes to the step S182; if the intersection is not empty, jumping to step S183;
s182, the lighting device is in a standby state without work;
s183, the controller detects whether the wind turbine generator is in an operating state, and if the wind turbine generator is in a non-operating state, the step S182 is skipped to; if the wind turbine generator is in the running state, jumping to step S184;
s184, detecting the current illumination intensity of the external environment by an illumination intensity detection device;
s185, the controller judges whether the current external environment illumination intensity is greater than a preset threshold value, and if the current external environment illumination intensity is not greater than the preset threshold value, the step S182 is skipped to; if the current external environment illumination intensity is greater than the preset threshold value, jumping to step S186;
and S186, the lighting device is in a working state.
7. The wind turbine generator shadow suppression method according to claim 6, wherein in step S186, the illumination intensity of the lighting device is kept fixed, or is dynamically adjusted according to the illumination intensity of the external environment detected in step S184; the illumination angle of the lighting device is kept fixed or dynamically adjusted according to the data obtained in steps S13, S14, S17.
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