Transient Energy Function and Oscillation Analysis of Doubly-fed Wind Turbines Considering Variation of Wind Speed

被引：0
|
作者：
Cao N. [1 ]
Wan K. [1 ]
Yu Q. [1 ]
机构：
[1] College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2022年 / 46卷 / 20期
关键词：
doubly-fed induction generator; oscillation; resonance; tower shadow effect; transient energy flow; wind turbine;
D O I：
10.7500/AEPS20210909005
中图分类号：
学科分类号：
摘要：
In order to study the influence of tower shadow effect and wind shear on the output power of wind turbines, the doubly-fed wind turbines are used as case study. Firstly, the transient energy function of the doubly-fed induction generator is derived by considering the variation of wind speed. Secondly, the periodic power fluctuation characteristics, frequency response, and oscillation mechanism of wind turbines are studied. Finally, a single-machine infinite system model including the wind speed model is built and simulated on the PSCAD/EMTDC platform. The influence of the tower shadow effect and wind shear on wind turbines is analyzed through the variation of power fluctuations and transient energy of wind turbines. The simulation results show that the tower shadow effect and wind shear cause the power fluctuations of the wind turbines. When the power fluctuation frequency of the wind turbines is equal to the natural oscillation frequency of the wind turbine shafting, the resonance of the wind turbines will occur, and the amplitude of oscillation is the largest. © 2022 Automation of Electric Power Systems Press. All rights reserved.
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页码：92 / 99
页数：7
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