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Radar echo simulation of wind turbines array based on scattering center

Bo Tang (College of Electrical Engineering and New Energy, China Three Gorges University, Yichang City, China)
Xiaofeng Yang (College of Electrical Engineering and New Energy, China Three Gorges University, Yichang City, China)
Jiangong Zhang (State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan, China)
Zhibin Zhao (College of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China)
Hao Chen (College of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China)
Gang Liu (College of Electrical Engineering and New Energy, China Three Gorges University, Yichang City, China)

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering

ISSN: 0332-1649

Article publication date: 15 June 2022

Issue publication date: 12 January 2023

27

Abstract

Purpose

This paper aims to propose a method for accurate radar echo simulation of wind turbines (WTs) array. It can solve the problem of passive interference from wind farms to neighboring radar stations.

Design/methodology/approach

First of all, the equivalent model of scattering centers of a single WT is obtained by using the spatial spectrum estimation method, and the accuracy of this model is verified by the scaled model experiment; then scattering centers model of WTs array was established by using the spatial coordinate transformation method. According to the position relationship between the model and the radar, and combined with the multipath scattering theory, the radar echo equation of WTs array was deduced. Finally, the simulation analysis is carried out with the four GoldWind 77/1500 WTs as an example and compared with the traditional methods.

Findings

This paper verifies the accuracy of the equivalent model of scattering centers through the WT scaled model experiment, and through simulation analysis, it is found that the result of this method is more consistent with the multipath scattering of radar echo between WTs array in practical engineering than the traditional method.

Originality/value

Based on the theory of high-frequency scattering, this paper introduces scattering centers into the solution of radar echo and considers the multipath scattering of radar echo, then a method for solving the radar echo of WTs array based on scattering centers is proposed.

Keywords

Acknowledgements

This work is supported by National Natural Science Foundation of China (No.51977121) and State Key Laboratory of Power System and Generation Equipment (No.SKLD21KZ03).

Citation

Tang, B., Yang, X., Zhang, J., Zhao, Z., Chen, H. and Liu, G. (2023), "Radar echo simulation of wind turbines array based on scattering center", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 42 No. 1, pp. 132-148. https://doi.org/10.1108/COMPEL-01-2022-0042

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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