Mechanism analysis and inclination optimization of the wind turbine side speed limit mechanism
SUN Feng1, WANG Jianwen1,2, LIU Xiongfei 1,3
1.College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China; 2.Key Laboratory of Wind and Solar Power Energy Urilization Technology Ministry of Education and Inner Mongolia Construction, Hohhot, Inner Mongolia 010051, China; 3.Yinchuan College, China University of Mining and Technology, Yinchuan, Gansu 750011, China
Abstract:The theoretical torque formula is derived for the small-sized wind turbine with the speed li-mit mechanism. The aerodynamic performance of the blade and the tail, reveals the wind wheel cornering, tail deflection and gravity return torque generation mechanism were anahyzed. The exact expression formula of the moment was derived. It is pointed out that the research on the speed limit mechanism lays an emphasis on the dynamic balance process between lateral torque; On this basis, the selection principle of lateral mechanism important parameters is presented in detail, and under the conbination of post dip β′ and side inclination β″ of 8 different tail oblique hinge axies, using Matlab simulation software we draw the programming tail moment Mb and motor P output power curves. The results show that the post dip β′>side inclination β″structure cornering speed wind turbine can satisfy the requirements of dynamic equilibrium between the torque in the control process. Using Matlab software in the β′>β″ structure found the best angle combination of post dip β′=8 and side inclination β″=3 is found, which can ensure that wind power output is constant and the laterality of the intergral wind turbine is stable, which provides a technical basis for the future which will further analyzing the small-sized wind turbine side mechanism analysis.
孙丰, 汪建文,, 刘雄飞,. 风力机侧偏限速机构的机理分析及倾角优化[J]. 排灌机械工程学报, 2017, 35(2): 152-157.
SUN Feng, WANG Jianwen,, LIU Xiongfei ,. Mechanism analysis and inclination optimization of the wind turbine side speed limit mechanism. Journal of Drainage and Irrigation Machinery Engin, 2017, 35(2): 152-157.
[1]周丹.大功率风力机叶片模态及气动特性分析[J]. 流体机械, 2015, 43(12): 33-36. ZHOU Dan.Analysis of modal and aerodynamic of high-pawer wind turbine blade [J]. Fluid machinery, 2015, 43(12): 33-36.(in Chinese)[2]苏永清, 李飞龙, 岳继光,等. 基于速度反馈减小风力机疲劳载荷的独立变桨控制[J]. 江苏大学学报(自然科学版), 2016, 37(1): 55-59. SU Yongqing, LI Feilong, YUE Jiguang,et al. The independent variable pitch control of wind turbine fatigue load based on speed feedback control [J]. Journal of Jiangsu University(natural science edition), 2016, 37(1): 55-59.(in Chinese)[3]WHALE J, MCHENRY M P, MALLA A. Scheduling and conducting power performance testing of a small wind turbine[J]. Renewable energy, 2013, 55(55): 55-61.[4]肖占俊. 高速风力机风轮侧偏调速设计计算与研究[J]. 风力发电, 2003(4): 16-20. XIAO Zhanjun. High speed wind wheel cornering speed wind generator design calculation and research[J]. Wind power generation, 2003(4): 16-20.(in Chinese)[5]BOWEN A J, ZAKAY N, IVES R L. The field perfor-mance of a remote 10 kW wind turbine[J]. Renewable energy, 2003, 28(28): 13-33.[6]RIZIOTIS V A, VOUTSINAS S G. Fatigue loads on wind turbines of different control strategies operating in complex terrain[J]. Journal of wind engineering and industrial aerodynamics, 2000, 85(3): 211-240.[7]张维智. 500 W风力发电动机尾翼斜置保护机构的研制[J]. 浙江科技学院学报, 2000, 12(4): 16-20. ZHANG Weizhi. Development of tail surface sloping protective mechanism for 500W wind-driven generator[J]. Journal of Zhejiang University of Science and Technology, 2000, 12(4): 16-20.(in Chinese)[8]BIKDASH M, CHEN D, HARB M, et al. A hybrid model of a small autofurling wind turbine[J]. Journal of vibration & control, 2001, 7(7):127-148.[9]LUBITZ W D. Impact of ambient turbulence on perfor-mance of a small wind turbine[J]. Renewable energy, 2014, 61(61): 69-73.[10]阮志坤, 周敏, 王五一,等. 小型水平轴风车侧偏限速机构的设计计算[J]. 太阳能学报, 1988, 9(4): 352-357. RUAN Zhikun, ZHOU Min, WANG Wuyi,et al. Design and calculation of a small horizontal axis wind turbine [J]. Acta energiae solaris sinica, 1988, 9(4): 352-357.(in Chinese)[11]David Wood.小型风力机:分析、设计与应用[M]. 北京, 机械工业出版社, 2013, 123-127.[12]陈孝耀. 微型风力机斜铰轴尾翼回位机理的探讨[J]. 风力发电, 1999(4): 29-35. CHEN Xiaoyao. Study on the mechanism of the back position of the oblique hinge of the micro wind turbine[J]. Wind power generation, 1999(4): 29-35.(in Chinese)[13]陈云程, 陈孝耀, 朱成铭. 风力机设计与应用[M]. 上海: 上海科学计算出版社, 1990:53-57.[14]代元军, 陆亦工, 孙玉新,等. 小型水平轴风力机限速控制机构设计方法的选择[J]. 机械制造, 2011, 49(12): 33-35. DAI Yuanjun, LU Yigong, SUN Yuxin,et al. Design method of the speed limit control mechanism for a small horizontal axis wind turbine [J]. Machinery manufacturing, 2011, 49(12): 33-35.(in Chinese)[15]AUDIERNE E, ELIZONDO J, BERGAMI L, et al. Analysis of the furling behavior of small wind turbines[J]. Applied energy, 2010, 87(7): 2278-2292.