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中文摘要：
湍流风速的频率会影响风力机最大功率点跟踪（maximumpowerpointtracking，MeeT）的性能，却被目前的MPPT控制及其改进方法所忽略。因此，为进一步提高风能捕获效率，该文基于收缩跟踪区间的功率曲线调整方式，采用响应面近似模型构建最佳起始转速与3种风速特征指标（平均风速、湍流强度、湍流频率）的函数关系，进而提出能够更加全面响应湍流风况变化的改进功率信号反馈法。该方法对湍流风速的考虑更为完善，因而能进一步提高风能捕获效率以及风力机MPPT对湍流风况的适应性。最后，利用美国国家可再生能源实验室（nationalrenewable energylaboratory，NREL）开发的FAST（fatigue，aerodynamics，structures，and turbulence）软件，针对NRELCART3风力机进行了仿真比较分析，验证了该方法的有效性与先进性。
英文摘要：
It has been found that the performance of maximum power point tracking （MPPT） of wind turbines is affected by turbulence frequency, however, which is neglected in the existing MPPT control methods and their improvements. To further improve the efficiency of wind energy capture, the functional relations between the optimal tracking range and three wind speed characteristics （i.e., mean wind speed, turbulence intensity and turbulence frequency） are constructed for the power curve modification based on the reduction of tracking range by utilizing the response surface model. And an improved power signal feedback （PSF） method with comprehensive response to the variation of turbulent wind conditions was proposed. Since turbulent wind was more comprehensively considered, higher efficiency of wind energy capture was achieved and the adaptability of MPPT to varying turbulence condition was improved. Finally, by using the （fatigue, aerodynamics, structures, and turbulence） FAST code developed by （national renewable energy laboratory） NREL, simulation and comparative analysis were performed on the NREL CART3 wind turbine and the effectiveness and the advantages of the proposed method were validated.
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