RESEARCH ON PITCH CONTROL STRATEGY AND AERODYNAMIC PERFORMANCE OF VERTICAL AXIS WIND TURBINE

Zhang Qiang; Miao Weipao; Liu Qingsong; Li Chun; Zhang Wanfu

doi:10.19912/j.0254-0096.tynxb.2021-0234

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (10) : 296-303. DOI: 10.19912/j.0254-0096.tynxb.2021-0234

RESEARCH ON PITCH CONTROL STRATEGY AND AERODYNAMIC PERFORMANCE OF VERTICAL AXIS WIND TURBINE

Zhang Qiang¹, Miao Weipao¹, Liu Qingsong¹, Li Chun^1,2, Zhang Wanfu^1,2

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Abstract

The attack angle of the vertical axis wind turbine changes periodically during the operation. The blades are often in a dynamic stall state at low tip speed ratios, which greatly reduces their aerodynamic performance. Adjusting the angle of attack of the blades to control flow separation can improve its operating performance effectively. This paper takes the H-type Darrieus vertical axis wind turbine as the research object. Based on the rule that the variation of the angle of attack with the phase angle at different tip speed ratios, a pitch angle control strategy is proposed. That is when the angle of attack is larger, the amplitude of the change is larger, and when it is smaller, the amplitude of change is smaller, and then the influence of its control method on aerodynamic performance is verified through numerical calculation, the variation of vortex field of wind turbine is analyzed under different rotation angles, and the reason of aerodynamic load variation is also discussed. The results show that this pitch angle control strategy can significantly improve the power coefficient, and the lifting effect is more significant when the tip speed ratio is lower, at a TSR of 1.25, the power coefficient increases by 146%.

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vertical axis wind turbines / pitch / control strategy / aerodynamic performance

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Zhang Qiang, Miao Weipao, Liu Qingsong, Li Chun, Zhang Wanfu. RESEARCH ON PITCH CONTROL STRATEGY AND AERODYNAMIC PERFORMANCE OF VERTICAL AXIS WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2022, 43(10): 296-303 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0234

References

[1] 李春, 叶舟, 高伟, 等. 现代陆海风力机计算与仿真[M]. 上海: 上海科学技术出版社, 2012: 510-512.
LI C, YE Z, GAO W, et al.Computation and simulation of modern land-sea wind turbine[M]. Shanghai: Shanghai Scientific & Technical Publishers, 2012: 510-512.
[2] WANG Z Y, ZHUANG M.Leading-edge serrations for performance improvement on a vertical-axis wind turbine at low tip-speed-ratios[J]. Applied energy, 2017, 208: 1184-1197.
[3] 张立勋, 张松, 焦启飞, 等. 智能变桨垂直轴风力发电机的变桨规律设计[J]. 太阳能学报, 2013, 34(8): 1427-1433.
ZHANG L X, ZHANG S, JIAO Q F, et al.Pitch laws of smart variable-pitch vertical axis wind turbine[J]. Acta energiae solaris sinica, 2013, 34(8): 1427-1433.
[4] CHEN J, LIN P, XU H, et al.A detail investigation of a novel vertical axis Darrieus wind rotor with two sets of blades[J]. Journal of renewable and sustainable energy, 2017, 9(1): 0133071.
[5] CHALOTHORN T, TAWIT C.Optimal angle of attack for untwisted blade wind turbine[J]. Renewable energy, 2008, 34(5): 1279-1284.
[6] SHARIFI A, NOBARI M R H. Prediction of optimum section pitch angle distribution along wind turbine blades[J]. Energy conversion and management, 2013, 67: 342-350.
[7] SAGHARICHI A, ZAMANI M, GHASEMI A.Effect of solidity on the performance of variable-pitch vertical axis wind turbine[J]. Energy, 2018, 161: 753-775.
[8] KOSAKU T, SANO M, NAKATANI K.Optimum pitch control for variable-pitch vertical-axis wind turbines by a single stage model on the momentum theory[C]//IEEE International Conference on Systems, Man and Cybernetics, Tunisia, USA: IEEE, 2002: 482-487.
[9] SHENG Q H, KHALID S, XIONG Z M, et al.CFD simulation of fixed and variable pitch vertical axis tidal turbine[J]. Journal of marine science and application, 2013, 12(2): 185-192.
[10] CHEN W, ZHOU C Y.Application of numerical simulation to obtain the optimization pitch angle for VAWT[C]//World Non-grid-connected Wind Power and Energy Conference, Nanjing, China, 2009: 1-5.
[11] BIANCHINI A, FERRARA G, FERRARI L.Pitch optimization in small-size Darrieus wind turbines[J]. Energy procedia, 2015, 81: 122-132.
[12] THUMTHAE C, CHISOMBOON T.Optimal angle of attack for untwisted blade wind turbine[J]. Renewable energy, 2009, 34(5): 1279-1284.
[13] MACPHEE D, BEYENE A.Fluid-structure interaction of a morphing symmetrical wind turbine blade subjected to variable load[J]. International journal of energy research, 2013, 37(1): 69-79.
[14] ABDALRAHMAN G, MELEK W, LIEN F S.Pitch angle control for a small-scale Darrieus vertical axis wind turbine with straight blades (H-type VAWT)[J]. Renewable energy, 2017, 114: 1353-1362.
[15] BOS R.Self-starting of a small urban darrieus rotor: strategies to boost performance in low-Reynolds-number flows[D]. Delft: Delft University of Technology, 2012.
[16] PALASH J, ABHISHEK A.Performance prediction and fundamental understanding of small vertical axis wind turbine with variable amplitude blade pitching[J]. Renewable energy, 2016, 97: 97-113.
[17] 张立勋, 梁迎彬, 尉越啸, 等. 垂直轴风力机主动式变桨距控制规律[J]. 中南大学学报(自然科学版), 2013, 44(6): 2561-2568.
ZHANG L X, LIANG Y B, YUN Y X, et al.Active variable-pitch control laws for vertical axis wind turbine[J]. Journal of Central South University(science and technology) , 2013, 44(6): 2561-2568.
[18] 张立军, 赵昕辉, 王旱祥, 等. H型垂直轴风力机实时高效攻角调节方法研究[J]. 机械工程学报, 2018, 54(10): 173-181.
ZHANG L J, ZHAO X H, WANG H X, et al.Research on real-time and efficient attack Angle adjustment method for H-type vertical axis wind turbine[J]. Journal of mechanical engineering, 2018, 54(10): 173-181.
[19] 郑旭阳, 孙志毅, 刘立群, 等. 垂直轴风力发电机的建模与变桨距研究[J]. 自动化仪表, 2013, 34(9): 52-55, 59.
ZHENG X Y, SUN Z Y, LIU L Q, et al.Modeling and Research of vertical axis wind turbine with variable pitch[J]. Automation & instrumentation, 2013, 34(9): 52-55, 59.
[20] ZHAO Z Z, QIAN S Y, SHEN W Z, et al.Study on variable pitch strategy in H-type wind turbine considering effect of small angle of attack[J]. Journal of renewable and sustainable energy, 2017, 9(5): 053302.
[21] CHEN B, SU S S, VIOLA I M, et al.Numerical investigation of vertical-axis tidal turbines with sinusoidal pitching blades[J]. Ocean engineering, 2018, 155: 75-87.
[22] LI C, XIAO Y Q, XU Y L, et al.Optimization of blade pitch in H-rotor vertical axis wind turbines through computational fluid dynamics simulations[J]. Applied energy, 2018, 212: 1107-1125.
[23] CHEN L J, YANG Y Z, GAO Y, et al.A novel real-time feedback pitch angle control system for vertical-axis wind turbines[J]. Journal of wind engineering & industrial aerodynamics, 2019, 195: 104023.
[24] LIU Q S, MIAO W P, LI C, et al.Effects of trailing-edge movable flap on aerodynamic performance and noise characteristics of VAWT[J]. Energy, 2019, 189(11): 116271
[25] TRAVIS J C, BRIAN H D, ZHEN X H, et al.Aerodynamic shape optimization of a vertical-axis wind turbine using differential evolution[J]. ISRN renewable energy, 2012, 2012: 1-16.
[26] ABDOLRAHIN R, IVO K, BERT B.Effect of pitch angle on power performance and aerodynamics of a vertical axis wind turbine[J]. Applied energy, 2017, 197: 132-150.
[27] BIANCHINI A, BALDUZZI F, BACHANT P, et al.Effectiveness of two-dimensional CFD simulations for Darrieus VAWTs: a combined numerical and experimental assessment[J]. Energy conversion and management, 2017, 136: 318-328.
[28] ELKHOURY M, KIWATA T, AOUN E.Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch[J]. Journal of wind engineering and industrial aerodynamics, 2015, 139: 111-123.
[29] BELAMADI R, DJEMILI A, ILINCA A, et al.Aerodynamic performance analysis of slotted airfoils for application to wind turbine blades[J]. Journal of wind engineering & industrial aerodynamics, 2016, 151: 79-99.