基于调频质量阻尼器的并网风力机叶片振动主动控制
|
摘要
风力发电机叶片的振动问题会影响风力发电机的安全运行及功率输出。针对叶片振动控制问题,采用主动调频质量阻尼器(TMD)设计主动控制策略,建立完整的机械及电气耦合模型。基于欧拉-拉格朗日法建立并网变速运行条件下的双馈感应风力机(DFIG)整体动力学模型,包括叶片、塔架的耦合,机械及电气由传动系统耦合。分析湍流载荷、变速诱导力及电网动态对叶片面内振动的影响,文章扩展了现有的模型,考虑了阻尼器停止力,完善了动力学模型,设计了约束系统和H∞鲁棒控制策略。仿真结果表明,提出的模型准确可靠,控制策略能有效减小叶片面内振动,阻尼器行程满足叶片许可的工作空间。此外,数值研究表明,在发生电网故障的情况下,控制器对于风轮速度变化具有鲁棒性。
Blades vibration affects the safe operation and power output of the wind turbine.For the blade vibration control problem,an active tuning mass damper(TMD)was used to design an active control strategy.A grid-connected Doubly Fed Induction Generator based wind turbine generator system with the detailed mechanical structural modeling of the wind turbine is established.The structural dynamic including the couple of blade,tower and drive train was considered based on the Eulerian-Lagrangian method.In this paper,we extend the existing model and consider the damper stop force.The effect of turbulence load,the effect of variable speed inducing force on the in-plane vibration of the blade is studied.The constrained H∞control strategy is designed.Simulink simulation results show that the proposed model is accurate.The control strategy can effectively reduce the in-plane vibration of the blade and the damper stroke satisfies the working space permitted by the blade.Further,the numerical investigation reveals that the controller is robust with respect to rotor speed variations under circumstances when grid fault occurs.
Blades vibration affects the safe operation and power output of the wind turbine.For the blade vibration control problem,an active tuning mass damper(TMD)was used to design an active control strategy.A grid-connected Doubly Fed Induction Generator based wind turbine generator system with the detailed mechanical structural modeling of the wind turbine is established.The structural dynamic including the couple of blade,tower and drive train was considered based on the Eulerian-Lagrangian method.In this paper,we extend the existing model and consider the damper stop force.The effect of turbulence load,the effect of variable speed inducing force on the in-plane vibration of the blade is studied.The constrained H∞control strategy is designed.Simulink simulation results show that the proposed model is accurate.The control strategy can effectively reduce the in-plane vibration of the blade and the damper stroke satisfies the working space permitted by the blade.Further,the numerical investigation reveals that the controller is robust with respect to rotor speed variations under circumstances when grid fault occurs.
引文
[1]丛聪,崔锐,殷鑫.风力机叶片面内振动的主动控制研究[J].可再生能源,2017,35(8):1236-1243.
[2]Stewart G,Lackner M A.Offshore wind turbine load reduction employing optimal passive tuned mass damping systems[J].IEEE Transactions on Control Systems Technology,2013,21(4):1090-1104.
[3]穆安乐,王超,刘宏昭,等.利用调频质量阻尼器结构实现海上漂浮式风力机的稳定性控制[J].中国电机工程学报,2013,33(35):89-94.
[4]Fitzgerald B,Basu B.Active tuned mass dampers for control of in-plane vibrations of wind turbine blades[J].Structural Control and Health Monitoring,2013,20(12):1377-1396.
[5]B Basu,A Staino,M Basu.Role of FACTS devices in mitigating grid fault induced vibration of wind turbines[J].Wind Energy,2013,7(7):1017-1033.
[6]Prajapat G P,Senroy N,Kar I N.Wind turbine structural modeling consideration for dynamic studies of DFIGbased system[J].IEEE Transactions on Sustainable Energy,2017,8(4):1463-1472.
[7]苗风麟,施洪生,张小青.风电机组耦合振动特性分析[J].中国电机工程学报,2016,36(1):187-195.
[8]Basu B,Zhang Z,Nielsen S R K.Damping of edgewise vibration in wind turbine blades by means of circular liquid dampers[J].Wind Energy,2016,19(2):213-226.
[9]Rubió-MassegúJ M,Rossell H R,Karimi F,et al.Static output-feedback control under information structure constraints[J].Automatica,2013,49(1):313-316.
[10]Wu B,Lang Y,Zargari N,et al.Power Conversion and Control of Wind Energy Systems[M].Hoboken:IEEEPress,2011.
[11]Jonkman JM,Butterfield S,Musial W,et al.Definition of a 5-MW reference wind turbine for offshore system development[R].Golden:National Renewable Energy Laboratory Technical Report,2009.
[2]Stewart G,Lackner M A.Offshore wind turbine load reduction employing optimal passive tuned mass damping systems[J].IEEE Transactions on Control Systems Technology,2013,21(4):1090-1104.
[3]穆安乐,王超,刘宏昭,等.利用调频质量阻尼器结构实现海上漂浮式风力机的稳定性控制[J].中国电机工程学报,2013,33(35):89-94.
[4]Fitzgerald B,Basu B.Active tuned mass dampers for control of in-plane vibrations of wind turbine blades[J].Structural Control and Health Monitoring,2013,20(12):1377-1396.
[5]B Basu,A Staino,M Basu.Role of FACTS devices in mitigating grid fault induced vibration of wind turbines[J].Wind Energy,2013,7(7):1017-1033.
[6]Prajapat G P,Senroy N,Kar I N.Wind turbine structural modeling consideration for dynamic studies of DFIGbased system[J].IEEE Transactions on Sustainable Energy,2017,8(4):1463-1472.
[7]苗风麟,施洪生,张小青.风电机组耦合振动特性分析[J].中国电机工程学报,2016,36(1):187-195.
[8]Basu B,Zhang Z,Nielsen S R K.Damping of edgewise vibration in wind turbine blades by means of circular liquid dampers[J].Wind Energy,2016,19(2):213-226.
[9]Rubió-MassegúJ M,Rossell H R,Karimi F,et al.Static output-feedback control under information structure constraints[J].Automatica,2013,49(1):313-316.
[10]Wu B,Lang Y,Zargari N,et al.Power Conversion and Control of Wind Energy Systems[M].Hoboken:IEEEPress,2011.
[11]Jonkman JM,Butterfield S,Musial W,et al.Definition of a 5-MW reference wind turbine for offshore system development[R].Golden:National Renewable Energy Laboratory Technical Report,2009.