上游风电机组偏航控制对下游机组功率影响研究.pdfVIP

Advances in Energy and Power Engineering 电力与能源进展, 2016, 4(6), 251-259 Published Online December 2016 in Hans. /journal/aepe /10.12677/aepe.2016.46031 Influence of Yaw Control of Upstream Wind Turbines on Power of Downstream Le Ma, Ying Deng North China Electric Power University, Beijing th th th Received: Nov. 29 , 2016; accepted: Dec. 25 , 2016; published: Dec. 28 , 2016 Copyright © 2016 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Open Access Abstract At present, the research on the yaw control strategy of wind turbines is mainly focused on the maximum power tracing of a single wind turbine, which cannot take into account the influence of wake on the power of downstream wind turbines. Therefore, this paper mainly focuses on the study of the center deviation of the wake turbulence in the yaw state of the upstream wind turbine. According to the existing theoretical basis, the simplification formula of the wake displacement is deduced, and the formula is programmed in MATLAB. The relationship between the parameters of the wake displacement is obtained, and the relationship between the parameters is analyzed. Then the model of wind turbine was established in Bladed software and the two sets of wind tur- bine with 7 times wind wheel diameter were taken by the center deviation of the wake center. Under certain wind direction, the wind turbine was active yaw control. After a certain angle, the power characteristics of the two units were analyzed and summarized. Keywords Wind Turbine, Active Y