Influence of Wake Between Wind Farms on Wind Power Generation

Lidong ZHANG; Guohao LI; Shiyu YANG; Qingwei LI; Dongxu PAN; Yuhan ZHANG; Guoqi CHEN

doi:10.16513/j.2096-2185.DE.2308107

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Distributed Energy ›› 2023, Vol. 8 ›› Issue (1) : 57-62. DOI: 10.16513/j.2096-2185.DE.2308107

Application Technology

Influence of Wake Between Wind Farms on Wind Power Generation

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Abstract

The active yaw of the wind turbine can deflect the wake, and thus, reduce the impact of the wake on the downstream wind turbine. The wake effect will increase the fatigue load and power loss of wind turbines. Furthermore, the wake of upstream wind farms is constantly superimposed, forming a large-scale wake cluster between wind farms, which has a more obvious influence on the load and power of downstream wind turbines. At present, there is a tendency for multiple wind farms to gather and develop in the same area. In order to clarify the influence of wake between wind farms, WFsim is used in this paper to simulate the changes of wake clusters between fields and in downstream wind farms as well as the changes of average power of a single wind turbine during yawed and unyawed. 12 m/s of wind speed is used in the simulation , the yawed and unyawed simulation analysis of two wind farms separated by 15D and 20D are carried out. The results show that yawed condition can increase the power output of the first row wind turbines of the downstream wind farm sharply, and has relatively little influence on the wind turbines behind the first row of the downstream wind farm, which means that the interfield wake mainly affects the first row wind turbines of the downstream wind farm. In addition, increasing the spacing between wind farms can reduce the impact of wake between fields effectively.

Key words

wind farm / wake effect / yaw / WFsim

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Lidong ZHANG , Guohao LI , Shiyu YANG , et al . Influence of Wake Between Wind Farms on Wind Power Generation[J]. Distributed Energy Resources. 2023, 8(1): 57-62 https://doi.org/10.16513/j.2096-2185.DE.2308107

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