Analysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under Microtopography
The operation safety of transmission lines is greatly affected by strong wind, but the previous research lacks the measured wind speed data and ignores the influence of micro topography on wind speed coefficient. Based on the measured data of meteorological stations, this paper studies the distribut...
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| Format: | Article |
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State Grid Energy Research Institute
2022-06-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011004 |
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| author | Chunhua FANG Yuning TAO Wei ZHANG Li ZHI Jing LI |
| author_facet | Chunhua FANG Yuning TAO Wei ZHANG Li ZHI Jing LI |
| author_sort | Chunhua FANG |
| collection | DOAJ |
| description | The operation safety of transmission lines is greatly affected by strong wind, but the previous research lacks the measured wind speed data and ignores the influence of micro topography on wind speed coefficient. Based on the measured data of meteorological stations, this paper studies the distribution characteristics and recurrence period of wind speed, completes the correction and Simulation of fluctuating wind speed spectrum, obtains the micro terrain parameters of transmission lines through Google Earth, proposes four kinds of wind speed correction methods under micro terrain, and calculates the wind speed correction coefficient. The results show that GeV model is more suitable for fitting probability distribution density of wind speed in Jiangsu Province. The design wind speed of UHV transmission tower in Jiangsu area should be between 34.5 m/s and 39 m/s. According to the time history data of wind speed in the period of monsoon typhoon monsoon, the fluctuating wind speed spectrum is highly consistent. When the tower nominal height is 1, the wind pressure correction coefficient increases with the increase of peak height or slope angle; when the tower nominal height / mountain height is higher than 3.0, the wind pressure correction coefficient is fixed. The research results can accurately calculate the wind speed of the tower in the micro terrain area near the meteorological observation station based on Google Earth micro terrain data. |
| format | Article |
| id | doaj-art-2397c6d0c51b4e8698df284c86c6af72 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2022-06-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-2397c6d0c51b4e8698df284c86c6af722025-08-20T02:52:24ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492022-06-0155614615310.11930/j.issn.1004-9649.202011004zgdl-55-3-fangchunhuaAnalysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under MicrotopographyChunhua FANG0Yuning TAO1Wei ZHANG2Li ZHI3Jing LI4Hubei Provincial Engineering Technology Research Center for Power Transmission Line, Yichang 443002, ChinaHubei Provincial Engineering Technology Research Center for Power Transmission Line, Yichang 443002, ChinaYichang Power Supply Company, State Grid Hubei Electric Power Co., Ltd., Yichang 443000, ChinaHubei Provincial Engineering Technology Research Center for Power Transmission Line, Yichang 443002, ChinaState Grid Anqing Electric Power Supply Company, Anqing 246000, ChinaThe operation safety of transmission lines is greatly affected by strong wind, but the previous research lacks the measured wind speed data and ignores the influence of micro topography on wind speed coefficient. Based on the measured data of meteorological stations, this paper studies the distribution characteristics and recurrence period of wind speed, completes the correction and Simulation of fluctuating wind speed spectrum, obtains the micro terrain parameters of transmission lines through Google Earth, proposes four kinds of wind speed correction methods under micro terrain, and calculates the wind speed correction coefficient. The results show that GeV model is more suitable for fitting probability distribution density of wind speed in Jiangsu Province. The design wind speed of UHV transmission tower in Jiangsu area should be between 34.5 m/s and 39 m/s. According to the time history data of wind speed in the period of monsoon typhoon monsoon, the fluctuating wind speed spectrum is highly consistent. When the tower nominal height is 1, the wind pressure correction coefficient increases with the increase of peak height or slope angle; when the tower nominal height / mountain height is higher than 3.0, the wind pressure correction coefficient is fixed. The research results can accurately calculate the wind speed of the tower in the micro terrain area near the meteorological observation station based on Google Earth micro terrain data.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011004measured wind speedtransmission linestiny terrainwind speed correctionrecurrence interval |
| spellingShingle | Chunhua FANG Yuning TAO Wei ZHANG Li ZHI Jing LI Analysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under Microtopography Zhongguo dianli measured wind speed transmission lines tiny terrain wind speed correction recurrence interval |
| title | Analysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under Microtopography |
| title_full | Analysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under Microtopography |
| title_fullStr | Analysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under Microtopography |
| title_full_unstemmed | Analysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under Microtopography |
| title_short | Analysis and Simulation of Measured Wind Speed and Wind Speed Correction Method of Tower Under Microtopography |
| title_sort | analysis and simulation of measured wind speed and wind speed correction method of tower under microtopography |
| topic | measured wind speed transmission lines tiny terrain wind speed correction recurrence interval |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011004 |
| work_keys_str_mv | AT chunhuafang analysisandsimulationofmeasuredwindspeedandwindspeedcorrectionmethodoftowerundermicrotopography AT yuningtao analysisandsimulationofmeasuredwindspeedandwindspeedcorrectionmethodoftowerundermicrotopography AT weizhang analysisandsimulationofmeasuredwindspeedandwindspeedcorrectionmethodoftowerundermicrotopography AT lizhi analysisandsimulationofmeasuredwindspeedandwindspeedcorrectionmethodoftowerundermicrotopography AT jingli analysisandsimulationofmeasuredwindspeedandwindspeedcorrectionmethodoftowerundermicrotopography |