Wind Turbine Wake Effects on Wind Resource Assessments – a Case Study

Jia Yi Jin,Muhammad S Virk,Rizwan Ghani,H Bevrani

doi:10.1051/e3sconf/202018603003

Jia Yi Jin, Muhammad S Virk + Show 2 more

Open Access

https://doi.org/10.1051/e3sconf/202018603003

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Journal: E3S Web of Conferences	Publication Date: Jan 1, 2020
Citations: 1	License type: CC BY 4.0

Affiliation: UiT The Arctic University of Norway

Abstract

This paper describes a case study of wind turbine wake loss effects on wind resource assessment in cold region. One year wind park SCADA data is used. Computational Fluid Dynamics (CFD) based numerical simulations are carried out for wind resource assessment and estimation of resultant Annual Energy Production (AEP). Numerical results are compared with the field SCADA data, where a good agreement is found. To better understand the wind flow physics and effects of wind turbine turbulence wake loss effects, three different wake loss models are used for the numerical simulations, where results with wake model is found in best agreement with the AEP estimation from field SCADA data. A detailed comparison of all wind turbines is also presented with the gross AEP. A preliminary case study about wind park layout optimization has also been carried out which shows that AEP can be improved by optimizing the wind park layout and CFD simulations can be used as a tool in this regards.

Highlights

Due to increasing demand of electrical power and need of protecting the environment, there has been increasing needs of rapid expansion and better use of renewable energy resources to cut the toxic emissions
This paper describes a case study of wind turbine wake effects on wind resource assessment in cold climate regions
SCADA data Annual Energy Production (AEP) results are compared with Computational Fluid Dynamics (CFD) simulations where a good agreement is found

Summary

Introduction

Due to increasing demand of electrical power and need of protecting the environment, there has been increasing needs of rapid expansion and better use of renewable energy resources to cut the toxic emissions. Before selecting a wind park site area for wind resource assessments, it is important to discuss the factors such as low temperature and icing climate. The assessment of wind resources at cold climate sites is challenging, but important, as wind energy project development decisions are based on these estimated results. To better understand the wind turbine wake effects on flow behaviour and resultant power production, CFD based parametric study has been carried out in this paper, where three different wake loss models are used to calculate the AEP of each wind turbine

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Results

Conclusion