CN116950857A - System and method for preventing blade of wind generating set from icing - Google Patents
System and method for preventing blade of wind generating set from icing Download PDFInfo
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- CN116950857A CN116950857A CN202310771430.2A CN202310771430A CN116950857A CN 116950857 A CN116950857 A CN 116950857A CN 202310771430 A CN202310771430 A CN 202310771430A CN 116950857 A CN116950857 A CN 116950857A
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- generating set
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 230000007613 environmental effect Effects 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 5
- 238000004381 surface treatment Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007477 logistic regression Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012706 support-vector machine Methods 0.000 description 1
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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a system and a method for preventing blades of a wind generating set from icing, wherein the system comprises a detection component, a control system and an icing intervention device, the detection component detects environmental meteorological data of the blades of the wind generating set and operation parameters of the wind generating set, and sends detected information to the control system, the control system judges whether the current state reaches a set icing critical interval according to the received information and a set program and algorithm, if the current state does not reach the icing critical interval, the system continues to monitor in real time, if the current state does not reach the icing critical interval, the icing intervention device is started, and when the current state is judged to leave the icing critical interval according to the received information and the set program, the icing intervention device is closed. According to the invention, when the blade is about to freeze but not freeze, the icing intervention device is controlled to operate, so that the blade is prevented from icing, the deicing is not required to be stopped, the safe and reliable operation of the wind generating set is ensured, and the generating efficiency of the wind generating set is improved.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a system and a method for preventing blades of a wind generating set from icing.
Background
The wind generating set is a device for converting wind energy into electric energy, and is an important component of clean energy. However, in weather conditions such as low temperature and high humidity, the wind generating set blades are easy to freeze, so that the efficiency is reduced, equipment is damaged, and even safety accidents are caused. The existing method for preventing the blade from icing mainly comprises the steps of using a chemical coating, spraying anti-icing liquid, arranging a heating device and the like to remove ice after the blade is frozen. The blade icing process requires shutdown after icing, which affects the efficiency of the wind turbine. The chemical coating and the sprayed anti-icing liquid have poor anti-icing effect and are easy to wind erosion and can not last, so the heating device is arranged for heating, the most common method is to heat the blade, and the blade can be prevented from icing by heating the blade. However, existing methods for preventing blade icing by heating generally rely on manual judgment and control to determine heating timing and parameters, and precise automatic control cannot be achieved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a system and a method for preventing the blade of a wind generating set from icing, which are used for judging whether icing conditions are currently achieved according to parameters such as the temperature, the humidity and the like of the surface of the blade monitored in real time, controlling an icing intervention device to operate when the blade is about to be frozen but is not frozen, avoiding the blade from icing, avoiding the need of stopping for deicing, ensuring the safe and reliable operation of the wind generating set, and improving the generating efficiency of the wind generating set.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the system for preventing the blade of the wind generating set from icing comprises a detection assembly, a control system and an icing intervention device, wherein the detection assembly is used for detecting environmental meteorological data of the blade of the wind generating set and operating parameters of the wind generating set, the detection assembly and the icing intervention device are electrically connected with the control system, the detection assembly sends detected information to the control system, and the control system controls the icing intervention device to start to prevent the blade from icing.
As a further improvement of the above technical scheme:
the detected component comprises a temperature sensor for detecting the surface temperature of the blade, a humidity sensor for detecting the surface humidity of the blade and a wind speed sensor for detecting the wind speed.
The detection assembly further comprises an icing core detection device for detecting icing cores on the surfaces of the blades and an impeller rotating speed detector for detecting the rotating speed of the impellers of the wind generating set.
The icing nuclear detection device is an infrared scanner or a laser scanner.
The icing intervention device is a heating device.
The temperature sensor, the humidity sensor and the wind speed sensor are respectively provided with at least one, the temperature sensor and the humidity sensor are arranged on the surface of the blade, and the wind speed sensor is an anemometer of the wind generating set arranged at the position of the weather station.
A method of preventing icing of a wind turbine blade, based on the above system, the method comprising: the detection assembly monitors meteorological parameters on the surface of the blade and running parameters of the wind generating set in real time, and sends detected information to the control system, the control system judges whether the current state reaches a set icing critical interval according to the received information, a set program and an algorithm, if the current state does not reach the icing critical interval, the real-time monitoring is continued, if the current state does not reach the icing critical interval, the icing intervention device is started, and when the control system judges that the current state leaves the icing critical interval according to the received information, the set program and the algorithm, the icing intervention device is closed.
The parameters of the blade surface monitored in real time by the detection component comprise temperature, humidity, wind speed and icing nucleus, and the running parameters of the wind generating set monitored in real time by the detection component comprise the rotation speed of the impeller.
And the icing critical interval is calculated and determined according to the environmental meteorological conditions where the blades are positioned, the blade material parameters, icing nuclear data and the running parameters of the wind generating set.
And the control system stores a plurality of icing critical interval data.
The beneficial effects of the invention are as follows:
1) Judging whether icing conditions are currently achieved according to parameters such as temperature, humidity and the like of the surface of the blade monitored in real time, controlling the icing intervention device to operate when the blade is about to be frozen but not yet frozen, avoiding the blade from icing, avoiding the need of stopping the machine for deicing, ensuring safe and reliable operation of the wind generating set, and improving the generating efficiency of the wind generating set.
2) And when the blade is about to freeze, the icing intervention device is restarted, so that the icing intervention device is prevented from being started in a long-term invalid mode, energy sources and cost are saved, and automatic accurate control is realized.
3) The detection components are comprehensively distributed on the surfaces of the blades, and the states of the blades can be more comprehensively monitored by combining the operation data of the unit, so that the anti-icing effect is improved.
4) The wind turbine blade is suitable for blades of different shapes, sizes and materials, and the utilization rate and reliability of the wind turbine can be improved.
Drawings
FIG. 1 is a flow chart of a control method of one embodiment of the present invention.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
A system for preventing blades of a wind generating set from icing comprises an icing intervention device, a control system, a detection assembly and an alarm assembly. The detection assembly and the icing intervention device are electrically connected with the control system, the detection assembly sends detected information to the control system, and the control system controls the icing intervention device to start to prevent the surface of the blade from icing.
The detection assembly includes, but is not limited to, a temperature sensor, a humidity sensor, a wind speed sensor, an icing core detection device, an impeller rotational speed detector.
The temperature sensor, the humidity sensor and the wind speed sensor are respectively used for monitoring the temperature, the humidity and the ambient wind speed of the blade surface of the wind generating set. It should be noted that the temperature sensor and the humidity sensor may be separately provided or integrated temperature and humidity sensors may be used, which may both realize the function of collecting temperature and humidity. The wind speed sensor is an anemometer of the wind generating set installed at the position of the weather station.
The icing core detection device is used for detecting icing core conditions on the surface of the blade, and an infrared scanner, a laser scanner and the like can be adopted for the icing core detection device.
The impeller rotating speed detector is used for detecting the rotating speed of the impeller of the wind generating set.
The temperature sensor, the humidity sensor and the icing core detection device are arranged on the outer surface of the blade.
The temperature sensor, the humidity sensor, the wind speed sensor and the icing core detection device can flexibly select types, numbers and installation positions according to factors such as the shape, the size, materials, surface states, working conditions and environments of the blades, and can select proper types, numbers and installation positions of the sensors according to specific applications so as to acquire more accurate data. For example, sensors may be mounted at the leading edge, trailing edge, or center position of the blade, etc., to cover the entire blade surface, and various types of sensors may be used for monitoring, such as temperature sensors, humidity sensors, wind speed sensors, icing core detection means, etc.
The temperature sensor, the humidity sensor, the wind speed sensor and the icing core detection device can respectively monitor the temperature, the humidity, the wind speed and the icing core information of the surface of the blade in real time, and the impeller rotating speed detector can monitor the impeller rotating speed in real time.
The icing intervention device is used for preventing the blade from icing, and the control system controls the icing intervention device to start or close.
The icing intervention device, the temperature sensor, the humidity sensor, the wind speed sensor, the icing nuclear detection device and the impeller rotating speed detector are all electrically connected with the control system, the temperature sensor, the humidity sensor, the wind speed sensor, the icing nuclear detection device and the impeller rotating speed detector send detected information to the control system, and the control system controls the starting, stopping and other operations of the icing intervention device. The control system stores various icing critical interval data, and each icing critical interval data is calculated and determined according to the environmental meteorological conditions of the blades, the blade material parameters, the icing nuclear data of the surfaces of the blades, the running parameters of the wind generating set and the like. The environmental meteorological conditions of the blade include blade surface temperature, humidity, wind speed and the like; the blade material parameters comprise parameters such as blade surface material data, surface treatment, heat conduction coefficient, heat capacity and the like; the wind generating set operation parameters comprise the rotation speed of the impeller; the icing core data includes icing core type, number, size, shape, etc.
In this embodiment, the icing intervention device is a heating device, and the blade is prevented from icing by heating the blade in advance to raise the surface temperature of the blade. The heating device can use various heating modes, such as heating wires, hot air or infrared heating, and the like, and is adjusted and optimized according to actual conditions. When the heating device is controlled, various controllers such as a PID controller, a logic controller and the like can be used, and the control system can control the operation of the heating device through the controllers, so that accurate control and energy saving can be realized. The heating time and heating power can be adjusted.
The alarm assembly is an acoustic and/or optical alarm, the alarm assembly is electrically connected with the control system, when the icing intervention device breaks down, the control system controls the alarm assembly to send out an acoustic and/or optical alarm, and meanwhile, the operation of the icing intervention device is stopped, and damage and potential safety hazards to the blades caused by the icing intervention devices such as the heating device and the like are prevented.
Further, the system also comprises a remote monitoring system, the control system comprises a communication module, and the remote monitoring system is electrically connected with the control system through the communication module to realize information transmission, remote monitoring and control.
The method for preventing the blade of the wind generating set from icing based on the system comprises the following steps: the temperature sensor, the humidity sensor, the wind speed sensor, the icing core detection device and the impeller rotating speed detector respectively monitor the temperature, the humidity, the wind speed, icing core information and the impeller rotating speed of the surface of the blade in real time, and send the detected information to the control system, and the control system judges whether the current state reaches icing conditions or a set icing critical section according to the received information and a set program. If the icing condition is not reached, continuing to monitor the temperature, the humidity, the wind speed, the icing core and the impeller rotation speed information in real time; if the icing condition is reached, starting the icing intervention device, preventing the blade from icing, and closing the icing intervention device when the control system judges that the current state leaves the icing critical zone according to the received information and the set program.
In this embodiment, the started icing intervention device is a heating device, and the heating device heats the blade to prevent the blade from icing. The control system can calculate heating power and heating time according to the predicted icing probability, the heat conduction coefficient, the heat capacity and other parameters of the blade material, so as to achieve the optimal anti-icing effect and energy-saving effect.
The icing condition is a condition that the blade is about to freeze but not freeze, namely an icing critical interval. The icing critical interval can be specifically calculated and determined according to the environmental meteorological conditions where the blades are located, the blade materials, icing core data and the running parameters of the wind generating set. The wind generating set operating parameters include impeller rotational speed, etc. The environmental meteorological conditions, blade materials, icing nuclear data on the surfaces of the blades and the running parameters of the wind generating sets of each blade are different, so that the blades of different wind generating sets have different icing critical intervals, namely, a plurality of icing critical intervals exist, for example, when the blade materials of two wind generating sets are different and other parameters are the same, the icing critical intervals of the blades of the two wind generating sets are different. For another example, the faster the impeller speed, the faster the airflow, which in combination with the wind speed, indirectly reduces the temperature of the blade surface, such that the blade may freeze at higher blade surface temperatures. Accordingly, the control system may store a plurality of common icing critical intervals.
During actual operation, the control system judges whether the current state of the blade reaches the set corresponding icing critical interval according to the received data detected by the detection assembly, the set program and the set algorithm. Whether the blade is frozen or not, that is, whether the blade is frozen or not can be judged, that is, whether the icing condition is achieved or not can be selected and optimized according to actual conditions based on various algorithms and models, such as a neural network, logistic regression, a support vector machine and the like.
Furthermore, the system is also provided with an environmental temperature monitor for monitoring the environmental temperature of the wind generating set or obtains the environmental weather information of the wind generating set in other existing modes, and the environmental temperature monitor is electrically connected with the control system. When the control system judges that the blade is possibly frozen due to extreme weather of the environment where the wind generating set is located according to the temperature monitored by the environment temperature monitor and the built-in program, the control system automatically starts the icing intervention device to prevent icing, and safety and reliability of the wind generating set are improved. I.e. the icing intervention means may be activated without determining whether said icing condition is reached.
According to the scheme, the preventive anti-icing technology based on icing critical conditions is characterized in that parameters such as temperature, humidity and wind speed of the surface of the blade, icing nucleus and impeller rotating speed are monitored in real time, various factors including factors such as blade surface materials and surface treatment are comprehensively considered, whether the blade is frozen or not is predicted, measures are timely taken when the set icing conditions are met, and the blade is prevented from icing in advance. The scheme can intervene in advance, the control system judges that the blade currently reaches icing conditions, namely, the icing intervention device is started when the blade is about to be frozen but not frozen, so that the blade can be prevented from icing, shutdown is not needed for deicing, and the power generation efficiency is improved.
Obviously, when the blade surface material or surface treatment changes due to replacement of the blade or the like, it is necessary to update the blade surface material data stored inside the control system to ensure accuracy of prediction and control. When the structure, shape, material and working condition of the blade are different, different anti-icing modes and parameters can be adopted, such as changing heating time, heating intensity, heating area and the like, so as to achieve the purposes of optimal anti-icing effect and energy saving. For example, a plurality of heating devices are installed on the surface of the blade, and the heating devices at different positions are automatically selected and started according to different meteorological environments and blade shapes, so that anti-icing efficiency is improved, energy consumption is reduced, and a specific control program can be flexibly compiled according to specific application scenes and is not repeated here.
In addition, the built-in control program of the control system can be optimized and improved by combining other technical means, such as intelligent control, big data analysis, artificial intelligence and other technologies, so that the intelligent and automation level of the system is improved, and continuous optimization and improvement are carried out according to actual conditions.
The system and the method for preventing the icing of the wind generating set blade can be applied to wind generating set blades of various types, including but not limited to horizontal axis wind generating sets, vertical axis wind generating sets and the like.
Further, the detection assembly and control system of the present invention can be adapted for use in ice protection control of other devices and applications, such as solar panels, air conditioning, and the like. The types, the number and the arrangement modes of the sensors and the controllers can be flexibly adjusted and optimized according to different equipment and occasions.
Finally, what is necessary here is: the above embodiments are only for further detailed description of the technical solutions of the present invention, and should not be construed as limiting the scope of the present invention, and some insubstantial modifications and adjustments made by those skilled in the art from the above description of the present invention are all within the scope of the present invention.
Claims (10)
1. The system for preventing the blade of the wind generating set from icing is characterized by comprising a detection assembly, a control system and an icing intervention device, wherein the detection assembly is used for detecting environmental meteorological data of the blade of the wind generating set and operating parameters of the wind generating set, the detection assembly and the icing intervention device are electrically connected with the control system, the detection assembly sends detected information to the control system, and the control system controls the icing intervention device to start to prevent the blade from icing.
2. A system for preventing icing on a blade of a wind turbine according to claim 1, wherein: the detected component comprises a temperature sensor for detecting the surface temperature of the blade, a humidity sensor for detecting the surface humidity of the blade and a wind speed sensor for detecting the wind speed.
3. A system for preventing icing on a blade of a wind turbine according to claim 2, wherein: the detection assembly further comprises an icing core detection device for detecting icing cores on the surfaces of the blades and an impeller rotating speed detector for detecting the rotating speed of the impellers of the wind generating set.
4. A system for preventing icing on a blade of a wind turbine according to claim 3, wherein: the icing nuclear detection device is an infrared scanner or a laser scanner.
5. A system for preventing icing on a blade of a wind turbine according to claim 1, wherein: the icing intervention device is a heating device.
6. A system for preventing icing on a blade of a wind turbine according to claim 2, wherein: the temperature sensor, the humidity sensor and the wind speed sensor are respectively provided with at least one, the temperature sensor and the humidity sensor are arranged on the surface of the blade, and the wind speed sensor is an anemometer of the wind generating set arranged at the position of the weather station.
7. A method for preventing icing of blades of a wind power generator set, based on the system of any one of claims 1-6, characterized in that: the detection assembly monitors meteorological parameters on the surface of the blade and running parameters of the wind generating set in real time, and sends detected information to the control system, the control system judges whether the current state reaches a set icing critical interval according to the received information, a set program and an algorithm, if the current state does not reach the icing critical interval, the real-time monitoring is continued, if the current state does not reach the icing critical interval, the icing intervention device is started, and when the control system judges that the current state leaves the icing critical interval according to the received information, the set program and the algorithm, the icing intervention device is closed.
8. A method of preventing icing on a wind park blade according to claim 7, wherein: the parameters of the blade surface monitored in real time by the detection component comprise temperature, humidity, wind speed and icing nucleus, and the running parameters of the wind generating set monitored in real time by the detection component comprise the rotation speed of the impeller.
9. A method of preventing icing on a wind park blade according to claim 7 or 8, characterized in that: and the icing critical interval is calculated and determined according to the environmental meteorological conditions where the blades are positioned, the blade material parameters, icing nuclear data and the running parameters of the wind generating set.
10. A method of preventing icing on a wind park blade according to claim 9, wherein: and the control system stores a plurality of icing critical interval data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310771430.2A CN116950857B (en) | 2023-06-28 | 2023-06-28 | System and method for preventing blade of wind generating set from icing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310771430.2A CN116950857B (en) | 2023-06-28 | 2023-06-28 | System and method for preventing blade of wind generating set from icing |
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| CN116950857A true CN116950857A (en) | 2023-10-27 |
| CN116950857B CN116950857B (en) | 2024-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454386A (en) * | 2014-11-24 | 2015-03-25 | 北京金风科创风电设备有限公司 | Icing control method and device for wind generating set |
| CN107829889A (en) * | 2017-11-20 | 2018-03-23 | 浙江运达风电股份有限公司 | A kind of deicing control method and system for wind power generating set |
| CA2948017A1 (en) * | 2016-11-08 | 2018-05-08 | Acciona Windpower, S.A | Wind turbine and method for ice removal in wind turbines |
| WO2022252411A1 (en) * | 2021-05-31 | 2022-12-08 | 中国华能集团清洁能源技术研究院有限公司 | Apparatus, method, and system for determining range of ice throw early warning of wind power plant in ice region, and device |
| CN116123047A (en) * | 2023-01-06 | 2023-05-16 | 四川省能投美姑新能源开发有限公司 | Blade heating deicing device and control method |
-
2023
- 2023-06-28 CN CN202310771430.2A patent/CN116950857B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454386A (en) * | 2014-11-24 | 2015-03-25 | 北京金风科创风电设备有限公司 | Icing control method and device for wind generating set |
| CA2948017A1 (en) * | 2016-11-08 | 2018-05-08 | Acciona Windpower, S.A | Wind turbine and method for ice removal in wind turbines |
| CN107829889A (en) * | 2017-11-20 | 2018-03-23 | 浙江运达风电股份有限公司 | A kind of deicing control method and system for wind power generating set |
| WO2022252411A1 (en) * | 2021-05-31 | 2022-12-08 | 中国华能集团清洁能源技术研究院有限公司 | Apparatus, method, and system for determining range of ice throw early warning of wind power plant in ice region, and device |
| CN116123047A (en) * | 2023-01-06 | 2023-05-16 | 四川省能投美姑新能源开发有限公司 | Blade heating deicing device and control method |
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