Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 Controller
Flap/lag stall nonlinear flutter and active control of anisotropic composite wind turbine blade modeled as antisymmetric beam analysis have been investigated based on robust H2 controller. The blade is modeled as single-cell thin-walled beam structure, exhibiting flap bending moment-lag transverse s...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/8378161 |
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| _version_ | 1832545824003850240 |
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| author | Tingrui Liu Wei Xu |
| author_facet | Tingrui Liu Wei Xu |
| author_sort | Tingrui Liu |
| collection | DOAJ |
| description | Flap/lag stall nonlinear flutter and active control of anisotropic composite wind turbine blade modeled as antisymmetric beam analysis have been investigated based on robust H2 controller. The blade is modeled as single-cell thin-walled beam structure, exhibiting flap bending moment-lag transverse shear deformation, and lag bending moment-flap transverse shear deformation, with constant pitch angle set. The stall flutter control of dynamic response characteristics of composite blade incorporating nonlinear aerodynamic model is investigated based on some structural and dynamic parameters. The aeroelastic partial differential equations are reduced by Galerkin method, with the aerodynamic forces decomposed by strip theory. Robust H2 optimal controller is developed to enhance the vibrational behavior and dynamic response to aerodynamic excitation under extreme wind conditions and stabilize structures that might be damaged in the absence of control. The effectiveness of the control algorithm is demonstrated in both amplitudes and frequencies by description of time responses, extended phase planes, and frequency spectrum analysis, respectively. |
| format | Article |
| id | doaj-art-f62cda19131f4c2893b9dc571a15a0b9 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f62cda19131f4c2893b9dc571a15a0b92025-02-03T07:24:41ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/83781618378161Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 ControllerTingrui Liu0Wei Xu1College of Mechanical & Electronic Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaCollege of Mechanical & Electronic Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaFlap/lag stall nonlinear flutter and active control of anisotropic composite wind turbine blade modeled as antisymmetric beam analysis have been investigated based on robust H2 controller. The blade is modeled as single-cell thin-walled beam structure, exhibiting flap bending moment-lag transverse shear deformation, and lag bending moment-flap transverse shear deformation, with constant pitch angle set. The stall flutter control of dynamic response characteristics of composite blade incorporating nonlinear aerodynamic model is investigated based on some structural and dynamic parameters. The aeroelastic partial differential equations are reduced by Galerkin method, with the aerodynamic forces decomposed by strip theory. Robust H2 optimal controller is developed to enhance the vibrational behavior and dynamic response to aerodynamic excitation under extreme wind conditions and stabilize structures that might be damaged in the absence of control. The effectiveness of the control algorithm is demonstrated in both amplitudes and frequencies by description of time responses, extended phase planes, and frequency spectrum analysis, respectively.http://dx.doi.org/10.1155/2016/8378161 |
| spellingShingle | Tingrui Liu Wei Xu Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 Controller Shock and Vibration |
| title | Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 Controller |
| title_full | Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 Controller |
| title_fullStr | Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 Controller |
| title_full_unstemmed | Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 Controller |
| title_short | Flap/Lag Stall Flutter Control of Large-Scale Wind Turbine Blade Based on Robust H2 Controller |
| title_sort | flap lag stall flutter control of large scale wind turbine blade based on robust h2 controller |
| url | http://dx.doi.org/10.1155/2016/8378161 |
| work_keys_str_mv | AT tingruiliu flaplagstallfluttercontroloflargescalewindturbinebladebasedonrobusth2controller AT weixu flaplagstallfluttercontroloflargescalewindturbinebladebasedonrobusth2controller |