Paper Info
Title
Novel Method for Estimating Utility Harmonic Impedance for a Direct-Drive Permanent Magnet Synchronous Generator Wind Farm
Abstract
Accurate estimation of the utility harmonic impedance is significant for harmonic control and responsibility division. Traditional methods of estimating the utility harmonic impedance are valid on the premise that the harmonic impedance on the wind-farm side is significantly greater than that on the utility side. However, with the installation of filters and reactive power compensation devices in wind farms, traditional estimation methods are no longer applicable. The accuracy of most existing estimation methods depends only on the accuracy of the model. This can cause large errors in the estimation of the utility harmonic impedance on a wind farm. To address this challenge, this paper proposes a method for estimating the utility harmonic impedance for a direct-drive permanent magnet synchronous generator wind farm based on a modified model with measured data. The proposed method uses the measured data to modify a model to obtain a more accurate estimation of the utility harmonic impedance. The results of the simulation and case study indicated that the traditional estimation methods have large errors when the background harmonic fluctuates significantly or the wind-farm-side harmonic impedance is smaller than the utility-side harmonic impedance. In contrast, the proposed method has a higher accuracy for the above scenarios.
Year
DOI
Venue
2022
10.1109/ACCESS.2022.3141312
IEEE ACCESS
Keywords
DocType
Volume
Harmonic analysis, Power harmonic filters, Impedance, Wind farms, Mathematical models, Estimation, Impedance measurement, D-PMSG wind farm, power quality, utility-side harmonic impedance wind-farm-side harmonic impedance
Journal
10
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Runze Zhou100.68
Xiaoyang Ma201.01
Rui Xu300.68
Xianyong Xiao401.35
Jinshuai Zhao501.01