The impact of yaw error on aeroelastic characteristics of a horizontal axis wind turbine blade
Horizontal axis wind turbines operate under yawed conditions for a considerable period of time due to the power control mechanism or sudden changes in the wind direction. This in turn can alter the dynamic characteristics of a turbine blade because the flow over the rotor plane may trigger complicat...
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| Veröffentlicht in: | Renewable energy 2013-12, Vol.60, p.256-268 |
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| creator | Jeong, Min-Soo Kim, Sang-Woo Lee, In Yoo, Seung-Jae Park, K.C. |
| description | Horizontal axis wind turbines operate under yawed conditions for a considerable period of time due to the power control mechanism or sudden changes in the wind direction. This in turn can alter the dynamic characteristics of a turbine blade because the flow over the rotor plane may trigger complicated induced velocity patterns. In this study, an aeroelastic analysis under yawed flow conditions is carried out to investigate the effects of yaw error on the blade behaviors and dynamic stability. A beam model including geometric nonlinearity coupled with unsteady aerodynamics based on a free-vortex wake method with the blade element theory is employed in the present study. The aerodynamic approach for a horizontal axis wind turbine blade under yawed flow conditions is verified through comparison with measurements. It is also shown that the present method gives slightly better results at high yaw angles than does the method previously published in the literature. The dynamic instabilities of a National Renewable Energy Laboratory 5 MW reference wind turbine have subsequently been investigated for various wind speeds and yaw angles. Observations are made that yaw effects induce considerable changes in airloads and blade structural behavior. Also, the aeroelastic damping values for this particular blade under yawed flow conditions can be reduced by up to approximately 33% in the worst case. Therefore, it is concluded that the impacts of yaw misalignments adversely influenced the dynamic aeroelastic stability of the horizontal axis wind turbine blade.
•We perform aerodynamic and aeroelastic analyses of a horizontal axis wind turbine blade under yawed flow conditions.•We investigate yaw effects on the aerodynamic loads and aeroelastic characteristics.•Unsteady aerodynamic features are well-captured by present method.•Periodic steady state responses and aeroelastic damping values are affected by inflow effects of a yawed wind turbine. |
| doi_str_mv | 10.1016/j.renene.2013.05.014 |
| format | Article |
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•We perform aerodynamic and aeroelastic analyses of a horizontal axis wind turbine blade under yawed flow conditions.•We investigate yaw effects on the aerodynamic loads and aeroelastic characteristics.•Unsteady aerodynamic features are well-captured by present method.•Periodic steady state responses and aeroelastic damping values are affected by inflow effects of a yawed wind turbine.</description><identifier>ISSN: 0960-1481</identifier><identifier>EISSN: 1879-0682</identifier><identifier>DOI: 10.1016/j.renene.2013.05.014</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Aerodynamics ; Aeroelasticity ; Applied sciences ; Blade element method ; Blades ; Dynamics ; Energy ; Exact sciences and technology ; Free-vortex wake method ; Horizontal Axis Wind Turbines ; Natural energy ; Power control ; Renewable energy ; renewable energy sources ; Stability ; wind direction ; Wind energy ; wind speed ; Wind turbine ; wind turbines ; Yaw ; Yaw effects</subject><ispartof>Renewable energy, 2013-12, Vol.60, p.256-268</ispartof><rights>2013 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c467t-23afaaa2c773784a621af54e445b959a0e7a99e617214f1e00df756adddd29733</citedby><cites>FETCH-LOGICAL-c467t-23afaaa2c773784a621af54e445b959a0e7a99e617214f1e00df756adddd29733</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.renene.2013.05.014$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27614291$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Jeong, Min-Soo</creatorcontrib><creatorcontrib>Kim, Sang-Woo</creatorcontrib><creatorcontrib>Lee, In</creatorcontrib><creatorcontrib>Yoo, Seung-Jae</creatorcontrib><creatorcontrib>Park, K.C.</creatorcontrib><title>The impact of yaw error on aeroelastic characteristics of a horizontal axis wind turbine blade</title><title>Renewable energy</title><description>Horizontal axis wind turbines operate under yawed conditions for a considerable period of time due to the power control mechanism or sudden changes in the wind direction. This in turn can alter the dynamic characteristics of a turbine blade because the flow over the rotor plane may trigger complicated induced velocity patterns. In this study, an aeroelastic analysis under yawed flow conditions is carried out to investigate the effects of yaw error on the blade behaviors and dynamic stability. A beam model including geometric nonlinearity coupled with unsteady aerodynamics based on a free-vortex wake method with the blade element theory is employed in the present study. The aerodynamic approach for a horizontal axis wind turbine blade under yawed flow conditions is verified through comparison with measurements. It is also shown that the present method gives slightly better results at high yaw angles than does the method previously published in the literature. The dynamic instabilities of a National Renewable Energy Laboratory 5 MW reference wind turbine have subsequently been investigated for various wind speeds and yaw angles. Observations are made that yaw effects induce considerable changes in airloads and blade structural behavior. Also, the aeroelastic damping values for this particular blade under yawed flow conditions can be reduced by up to approximately 33% in the worst case. Therefore, it is concluded that the impacts of yaw misalignments adversely influenced the dynamic aeroelastic stability of the horizontal axis wind turbine blade.
•We perform aerodynamic and aeroelastic analyses of a horizontal axis wind turbine blade under yawed flow conditions.•We investigate yaw effects on the aerodynamic loads and aeroelastic characteristics.•Unsteady aerodynamic features are well-captured by present method.•Periodic steady state responses and aeroelastic damping values are affected by inflow effects of a yawed wind turbine.</description><subject>Aerodynamics</subject><subject>Aeroelasticity</subject><subject>Applied sciences</subject><subject>Blade element method</subject><subject>Blades</subject><subject>Dynamics</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Free-vortex wake method</subject><subject>Horizontal Axis Wind Turbines</subject><subject>Natural energy</subject><subject>Power control</subject><subject>Renewable energy</subject><subject>renewable energy sources</subject><subject>Stability</subject><subject>wind direction</subject><subject>Wind energy</subject><subject>wind speed</subject><subject>Wind turbine</subject><subject>wind turbines</subject><subject>Yaw</subject><subject>Yaw effects</subject><issn>0960-1481</issn><issn>1879-0682</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFkE1v1DAQhiNEJZaWf4CEL0hcEjyOP5ILEqr4kipxoL3WmnXGrFfZeLGzlPbX45CKI9gHy9Iz77x6quol8AY46Lf7JtFUbiM4tA1XDQf5pNpAZ_qa6048rTa817wG2cGz6nnOe85BdUZuqtvrHbFwOKKbWfTsHu8YpRQTixNDSpFGzHNwzO0wFYZSWL55YZHtYgoPcZpxZPgrZHYXpoHNp7QNE7HtiANdVGcex0wvHt_z6ubjh-vLz_XV109fLt9f1U5qM9eiRY-IwhnTmk6iFoBeSZJSbXvVIyeDfU8ajADpgTgfvFEah3JEb9r2vHqz5h5T_HGiPNtDyI7GESeKp2xBG1AKhIT_o4pzo4seWVC5oi7FnBN5e0zhgOneAreLebu3q3m7mLdc2WK-jL1-3IDZ4egTTi7kv7OipEvRL01erZzHaPF7UWtvvpWgUgAM7_8UeLcSVNz9DJRsdoEmR0NI5GY7xPDvKr8BjNCkXg</recordid><startdate>20131201</startdate><enddate>20131201</enddate><creator>Jeong, Min-Soo</creator><creator>Kim, Sang-Woo</creator><creator>Lee, In</creator><creator>Yoo, Seung-Jae</creator><creator>Park, K.C.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SU</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20131201</creationdate><title>The impact of yaw error on aeroelastic characteristics of a horizontal axis wind turbine blade</title><author>Jeong, Min-Soo ; Kim, Sang-Woo ; Lee, In ; Yoo, Seung-Jae ; Park, K.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c467t-23afaaa2c773784a621af54e445b959a0e7a99e617214f1e00df756adddd29733</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Aerodynamics</topic><topic>Aeroelasticity</topic><topic>Applied sciences</topic><topic>Blade element method</topic><topic>Blades</topic><topic>Dynamics</topic><topic>Energy</topic><topic>Exact sciences and technology</topic><topic>Free-vortex wake method</topic><topic>Horizontal Axis Wind Turbines</topic><topic>Natural energy</topic><topic>Power control</topic><topic>Renewable energy</topic><topic>renewable energy sources</topic><topic>Stability</topic><topic>wind direction</topic><topic>Wind energy</topic><topic>wind speed</topic><topic>Wind turbine</topic><topic>wind turbines</topic><topic>Yaw</topic><topic>Yaw effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jeong, Min-Soo</creatorcontrib><creatorcontrib>Kim, Sang-Woo</creatorcontrib><creatorcontrib>Lee, In</creatorcontrib><creatorcontrib>Yoo, Seung-Jae</creatorcontrib><creatorcontrib>Park, K.C.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Renewable energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jeong, Min-Soo</au><au>Kim, Sang-Woo</au><au>Lee, In</au><au>Yoo, Seung-Jae</au><au>Park, K.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The impact of yaw error on aeroelastic characteristics of a horizontal axis wind turbine blade</atitle><jtitle>Renewable energy</jtitle><date>2013-12-01</date><risdate>2013</risdate><volume>60</volume><spage>256</spage><epage>268</epage><pages>256-268</pages><issn>0960-1481</issn><eissn>1879-0682</eissn><abstract>Horizontal axis wind turbines operate under yawed conditions for a considerable period of time due to the power control mechanism or sudden changes in the wind direction. This in turn can alter the dynamic characteristics of a turbine blade because the flow over the rotor plane may trigger complicated induced velocity patterns. In this study, an aeroelastic analysis under yawed flow conditions is carried out to investigate the effects of yaw error on the blade behaviors and dynamic stability. A beam model including geometric nonlinearity coupled with unsteady aerodynamics based on a free-vortex wake method with the blade element theory is employed in the present study. The aerodynamic approach for a horizontal axis wind turbine blade under yawed flow conditions is verified through comparison with measurements. It is also shown that the present method gives slightly better results at high yaw angles than does the method previously published in the literature. The dynamic instabilities of a National Renewable Energy Laboratory 5 MW reference wind turbine have subsequently been investigated for various wind speeds and yaw angles. Observations are made that yaw effects induce considerable changes in airloads and blade structural behavior. Also, the aeroelastic damping values for this particular blade under yawed flow conditions can be reduced by up to approximately 33% in the worst case. Therefore, it is concluded that the impacts of yaw misalignments adversely influenced the dynamic aeroelastic stability of the horizontal axis wind turbine blade.
•We perform aerodynamic and aeroelastic analyses of a horizontal axis wind turbine blade under yawed flow conditions.•We investigate yaw effects on the aerodynamic loads and aeroelastic characteristics.•Unsteady aerodynamic features are well-captured by present method.•Periodic steady state responses and aeroelastic damping values are affected by inflow effects of a yawed wind turbine.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.renene.2013.05.014</doi><tpages>13</tpages></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Aerodynamics Aeroelasticity Applied sciences Blade element method Blades Dynamics Energy Exact sciences and technology Free-vortex wake method Horizontal Axis Wind Turbines Natural energy Power control Renewable energy renewable energy sources Stability wind direction Wind energy wind speed Wind turbine wind turbines Yaw Yaw effects |
| title | The impact of yaw error on aeroelastic characteristics of a horizontal axis wind turbine blade |
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