CN103899485A - Method for detecting freezing of blades when fan operates - Google Patents
Method for detecting freezing of blades when fan operates Download PDFInfo
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- CN103899485A CN103899485A CN201410167142.7A CN201410167142A CN103899485A CN 103899485 A CN103899485 A CN 103899485A CN 201410167142 A CN201410167142 A CN 201410167142A CN 103899485 A CN103899485 A CN 103899485A
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- fan
- output power
- blower fan
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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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Abstract
The invention relates to a method for detecting freezing of blades when a fan operates. The method includes the following steps that firstly, whether the external wind speed of the fan is in a fan operation design range or not is judged; secondly, whether the external temperature of the fan is lower than a set value or not is judged; thirdly, whether the state of the fan is in an operation power generation state or not is judged; fourthly, whether theoretical output power and real-time output power of the fan are larger than a theoretical design difference value or not is judged. According to the method for detecting freezing of the blades, whether the blades of the fan are frozen or not is judged according to the reduction of the output power of the blades after the blades are frozen, and therefore an ice detection sensor with the special characteristic does not need to be installed. In addition, whether the blades of the fan which operates and generates power are frozen or not can be detected, so that the safety of the fan and the blades is guaranteed, and losses are reduced.
Description
Technical field
The present invention relates to wind-driven generator field, relate in particular to a kind of icing method of blade while detecting fan operation.
Background technique
Early stage blower fan is generally all mounted in meagrely-populated remote districts, such as coastal area or sand and dust area, but along with the maturation of wind generating technology, a lot of hinterland also start to install Large-scale Wind Turbines, these blower fans are generally all mounted on the mountain top in inland, it is exactly the winter very low in temperature that there is a feature in these areas, humidity ratio is larger, thereby the blade of blower fan easily freezes, if blower fan is moving, blade occurs to freeze, if now do not taken measures, such as shutting down or heating, blade just easily ruptures, thereby affect the safety of blower fan and blade, bring about great losses.
Whether freeze in order to detect blade at present; generally to be provided with ice acquisition sensor in fixing nacelle exterior; in the time that ice acquisition sensor has ice to nacelle exterior; shut down; this detection mode does not have the actual concrete situation of freezing that blade detected, thereby cannot judge whether blade really freezes.And if ice acquisition sensor is arranged on the blade of rotation to data transmission difficulty.
Summary of the invention
The object of the invention is to overcome above defect, a kind of a kind of sensorless icing method of blade while detecting fan operation is provided.
In order to realize above object, technological scheme of the present invention is, a kind of icing method of blade while detecting fan operation, and it comprises the following steps:
Step 1, judge that the outside wind speed of blower fan whether in fan operation scope of design, if so, turns to step 2;
Step 2, judge that whether blower fan external temperature is lower than setting value, if so, represent that blade likely freezes, and turns to step 3; If not, represent that blade does not freeze, and returns to step 1;
Preferably, be the icing situation of blade by erroneous judgement when preventing fan trouble, described step 4 also comprises the judgement of blower fan tower barrel vibration values, its step 4 is: step 4, judge whether theoretical output power and the real-time output power of blower fan are greater than Theoretical Design difference, if the real-time output power of theoretical output power and blower fan is less than Theoretical Design difference, also return to step 1; If the real-time output power of theoretical output power and blower fan is greater than Theoretical Design difference, judge again whether blower fan tower barrel vibration values exceedes setting value, if do not exceed setting value, represent that blower fan freezes, fan parking or startup blade heating equipment; If exceeded setting value, represent fan trouble, return to step 1.
After the present invention utilizes blade to freeze, its output power reduces to judge whether fan blade freezes, thereby without the ice acquisition sensor that speciality is installed, and whether the fan blade that can detect in operation generating freezes, thereby guarantee the safety of blower fan and blade, reduce loss.
Accompanying drawing explanation
Fig. 1 is flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
With reference to accompanying drawing, a kind of icing method of blade while detecting fan operation, it comprises the following steps:
Step S1: judge that the outside wind speed of blower fan whether within the scope of fan operation, if the outside wind speed of blower fan is within the scope of fan operation, turns to step S2;
Step S2: judge that whether blower fan ambient temperature is lower than setting value, if ambient temperature lower than setting value, represents that blade likely freezes, and turns to step S3; If not, return to step S1;
Step S3: judge that fan condition, whether in operation generating state, if so, turns to step S4; If not, represent that blower fan, at present in outage state, returns to step 1;
Step S4: judge under current wind speed that whether theoretical output power and the real-time output power of blower fan are greater than Theoretical Design difference, if the real-time output power of theoretical output power and blower fan is less than Theoretical Design difference, also return to step 1; If the real-time output power of theoretical output power and blower fan is greater than Theoretical Design difference, turn to step 5;
Step S5: judge whether blower fan tower barrel vibration values exceedes setting value, if do not exceed setting value, represent that blower fan freezes, fan parking or startup blade heating equipment; If exceeded setting value, represent fan trouble, return to step 1.
Claims (2)
1. while detecting fan operation, the icing method of blade, is characterized in that, it comprises the following steps:
Step 1, judge that the outside wind speed of blower fan whether in fan operation scope of design, if so, turns to step 2;
Step 2, judge that whether blower fan external temperature is lower than setting value, if so, represent that blade likely freezes, and turns to step 3; If not, represent that blade does not freeze, and returns to step 1;
Step 3, judge that whether fan condition is operation generating state, if so, turns to step 4; If not, expression blower fan is shut down, and returns to step 1;
Step 4, judge whether theoretical output power and the real-time output power of blower fan are greater than Theoretical Design difference, if so, represent that blade freezes, fan parking or start blade heating equipment; If not, return to step 1.
2. a kind of icing method of blade while detecting fan operation according to claim 1, it is characterized in that, described step 4 also comprises the judgement of blower fan tower barrel vibration values, its step 4 is: step 4, judge whether theoretical output power and the real-time output power of blower fan are greater than Theoretical Design difference, if the real-time output power of theoretical output power and blower fan is less than Theoretical Design difference, also return to step 1; If the real-time output power of theoretical output power and blower fan is greater than Theoretical Design difference, judge again whether blower fan tower barrel vibration values exceedes setting value, if do not exceed setting value, represent that blower fan freezes, fan parking or startup blade heating equipment; If exceeded setting value, represent fan trouble, return to step 1.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167142.7A CN103899485A (en) | 2014-04-24 | 2014-04-24 | Method for detecting freezing of blades when fan operates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167142.7A CN103899485A (en) | 2014-04-24 | 2014-04-24 | Method for detecting freezing of blades when fan operates |
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| Publication Number | Publication Date |
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| CN103899485A true CN103899485A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410167142.7A Pending CN103899485A (en) | 2014-04-24 | 2014-04-24 | Method for detecting freezing of blades when fan operates |
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| CN (1) | CN103899485A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267613A (en) * | 2017-12-28 | 2018-07-10 | 华润电力技术研究院有限公司 | A kind of survey wind data processing method and relevant device |
| CN108425812A (en) * | 2018-01-18 | 2018-08-21 | 内蒙古久和能源装备有限公司 | A kind of wind generator set blade icing flexible measurement method |
| CN111102141A (en) * | 2019-12-13 | 2020-05-05 | 中国船舶重工集团海装风电股份有限公司 | Fan blade heating method, device, system and storage medium |
| CN112324615A (en) * | 2020-11-26 | 2021-02-05 | 中国船舶重工集团海装风电股份有限公司 | Wind generating set icing control method and system and related components |
| CN113007041A (en) * | 2021-03-02 | 2021-06-22 | 山东中车风电有限公司 | Wind turbine generator blade icing detection system and detection method |
| CN113847216A (en) * | 2021-10-14 | 2021-12-28 | 远景智能国际私人投资有限公司 | Method, device and equipment for predicting state of fan blade and storage medium |
| CN114593024A (en) * | 2022-04-06 | 2022-06-07 | 华润电力技术研究院有限公司 | Fan blade icing prediction method and related equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102588223A (en) * | 2012-03-15 | 2012-07-18 | 南京风电科技有限公司 | Wind power generator capable of realizing freezing detection and freezing detecting method of wind power generator |
| WO2013091649A2 (en) * | 2011-12-22 | 2013-06-27 | Vestas Wind Systems A/S | A wind turbine blade ice accretion detector |
| CN103603769A (en) * | 2013-11-23 | 2014-02-26 | 大连尚能科技发展有限公司 | Self-detection method for freezing of blades of fan of variable-pitched wind turbine |
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2014
- 2014-04-24 CN CN201410167142.7A patent/CN103899485A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091649A2 (en) * | 2011-12-22 | 2013-06-27 | Vestas Wind Systems A/S | A wind turbine blade ice accretion detector |
| WO2013091649A3 (en) * | 2011-12-22 | 2013-11-07 | Vestas Wind Systems A/S | A wind turbine blade ice accretion detector |
| CN102588223A (en) * | 2012-03-15 | 2012-07-18 | 南京风电科技有限公司 | Wind power generator capable of realizing freezing detection and freezing detecting method of wind power generator |
| CN103603769A (en) * | 2013-11-23 | 2014-02-26 | 大连尚能科技发展有限公司 | Self-detection method for freezing of blades of fan of variable-pitched wind turbine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267613A (en) * | 2017-12-28 | 2018-07-10 | 华润电力技术研究院有限公司 | A kind of survey wind data processing method and relevant device |
| CN108425812A (en) * | 2018-01-18 | 2018-08-21 | 内蒙古久和能源装备有限公司 | A kind of wind generator set blade icing flexible measurement method |
| CN111102141A (en) * | 2019-12-13 | 2020-05-05 | 中国船舶重工集团海装风电股份有限公司 | Fan blade heating method, device, system and storage medium |
| CN112324615A (en) * | 2020-11-26 | 2021-02-05 | 中国船舶重工集团海装风电股份有限公司 | Wind generating set icing control method and system and related components |
| CN113007041A (en) * | 2021-03-02 | 2021-06-22 | 山东中车风电有限公司 | Wind turbine generator blade icing detection system and detection method |
| CN113847216A (en) * | 2021-10-14 | 2021-12-28 | 远景智能国际私人投资有限公司 | Method, device and equipment for predicting state of fan blade and storage medium |
| CN113847216B (en) * | 2021-10-14 | 2023-09-26 | 远景智能国际私人投资有限公司 | Fan blade state prediction method, device, equipment and storage medium |
| CN114593024A (en) * | 2022-04-06 | 2022-06-07 | 华润电力技术研究院有限公司 | Fan blade icing prediction method and related equipment |
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Application publication date: 20140702 |