A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids

Abstract The primary goal of grid‐connected microgrids is to control the active and reactive power, which is reachable by the inner current control loop in the control structure of power converters. However, when facing unbalanced conditions, the inner current control loop implemented in the dq fram...

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Main Authors: Mojtaba Ahmadi, Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi
Format: Article
Language:English
Published: Wiley 2023-10-01
Series:IET Renewable Power Generation
Subjects:
Online Access:https://doi.org/10.1049/rpg2.12867
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author Mojtaba Ahmadi
Mohammad Hossein Mousavi
Hassan Moradi
Kumars Rouzbehi
author_facet Mojtaba Ahmadi
Mohammad Hossein Mousavi
Hassan Moradi
Kumars Rouzbehi
author_sort Mojtaba Ahmadi
collection DOAJ
description Abstract The primary goal of grid‐connected microgrids is to control the active and reactive power, which is reachable by the inner current control loop in the control structure of power converters. However, when facing unbalanced conditions, the inner current control loop implemented in the dq frame does not function properly. In such conditions, the popular current control loop malfunctions since there is an oscillatory coupling between harmonic components. Therefore, in this study, a new harmonic detector based on decoupled double synchronous reference frame within the current control loop is proposed in which the oscillatory coupling between harmonic components is eliminated, and the overall performance of the power converter control system is significantly improved. The performance of the precisely developed mathematical models is verified by Matlab simulations, and the simulation results confirm the accuracy and proper operation of the proposed strategy.
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spelling doaj.art-c921e69ac10c480a9c04ecf1ee9966d82023-10-25T08:27:41ZengWileyIET Renewable Power Generation1752-14161752-14242023-10-0117143536355310.1049/rpg2.12867A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgridsMojtaba Ahmadi0Mohammad Hossein Mousavi1Hassan Moradi2Kumars Rouzbehi3Department of Electrical Engineering Razi University Kermanshah IranDepartment of Electrical Engineering Razi University Kermanshah IranDepartment of Electrical Engineering Razi University Kermanshah IranDepartment of System Engineering and Automatic Control University of Seville Seville SpainAbstract The primary goal of grid‐connected microgrids is to control the active and reactive power, which is reachable by the inner current control loop in the control structure of power converters. However, when facing unbalanced conditions, the inner current control loop implemented in the dq frame does not function properly. In such conditions, the popular current control loop malfunctions since there is an oscillatory coupling between harmonic components. Therefore, in this study, a new harmonic detector based on decoupled double synchronous reference frame within the current control loop is proposed in which the oscillatory coupling between harmonic components is eliminated, and the overall performance of the power converter control system is significantly improved. The performance of the precisely developed mathematical models is verified by Matlab simulations, and the simulation results confirm the accuracy and proper operation of the proposed strategy.https://doi.org/10.1049/rpg2.12867harmonic analysisharmonic distortionharmonics suppressionpower system harmonics
spellingShingle Mojtaba Ahmadi
Mohammad Hossein Mousavi
Hassan Moradi
Kumars Rouzbehi
A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids
IET Renewable Power Generation
harmonic analysis
harmonic distortion
harmonics suppression
power system harmonics
title A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids
title_full A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids
title_fullStr A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids
title_full_unstemmed A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids
title_short A new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids
title_sort new approach for harmonic detection based on eliminating oscillatory coupling effects in microgrids
topic harmonic analysis
harmonic distortion
harmonics suppression
power system harmonics
url https://doi.org/10.1049/rpg2.12867
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