Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review

With the continuous advancement of the green and low-carbon transformation of energy structures in countries around the world, renewable energy sources such as solar energy are receiving increasingly widespread attention. Driven by this trend, photovoltaic (PV) power generation, with its unique adva...

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Main Authors: Mingxuan Mao, Yuhao Tang, Jiahan Chen, Zhao Xu, Haojin Sun, Chengqi Yin
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/18/13/3426
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author Mingxuan Mao
Yuhao Tang
Jiahan Chen
Zhao Xu
Haojin Sun
Chengqi Yin
author_facet Mingxuan Mao
Yuhao Tang
Jiahan Chen
Zhao Xu
Haojin Sun
Chengqi Yin
author_sort Mingxuan Mao
collection DOAJ
description With the continuous advancement of the green and low-carbon transformation of energy structures in countries around the world, renewable energy sources such as solar energy are receiving increasingly widespread attention. Driven by this trend, photovoltaic (PV) power generation, with its unique advantages, has continuously increased the scale of PV grid connection. However, the inherent characteristics of solar energy and the control features of grid-connected PV systems result in the presence of a large amount of interharmonic components in their output current, seriously endangering the safety and stable operation of the power system. Since interharmonics are difficult to obtain in an intuitive way, this paper first introduces the monitoring methods of interharmonics. Based on accurately monitoring the interharmonics, further discussions were carried out around the interharmonic suppression strategies. Through the analysis of the advantages and disadvantages of various interharmonic monitoring methods and suppression strategies, guidance can be provided for the selection of interharmonic monitoring methods and suppression strategies in different scenarios.
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id doaj-art-ee9c2fa4b79a489db0b17bc370de8201
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issn 1996-1073
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publishDate 2025-06-01
publisher MDPI AG
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series Energies
spelling doaj-art-ee9c2fa4b79a489db0b17bc370de82012025-08-20T03:16:46ZengMDPI AGEnergies1996-10732025-06-011813342610.3390/en18133426Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A ReviewMingxuan Mao0Yuhao Tang1Jiahan Chen2Zhao Xu3Haojin Sun4Chengqi Yin5School of Automation, Wuxi University, Wuxi 214105, ChinaSchool of Automation, Wuxi University, Wuxi 214105, ChinaDepartment of Computing, The Hong Kong Polytechnic University, Hong Kong, ChinaSchool of Electrical Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Automation, Wuxi University, Wuxi 214105, ChinaSchool of Automation, Wuxi University, Wuxi 214105, ChinaWith the continuous advancement of the green and low-carbon transformation of energy structures in countries around the world, renewable energy sources such as solar energy are receiving increasingly widespread attention. Driven by this trend, photovoltaic (PV) power generation, with its unique advantages, has continuously increased the scale of PV grid connection. However, the inherent characteristics of solar energy and the control features of grid-connected PV systems result in the presence of a large amount of interharmonic components in their output current, seriously endangering the safety and stable operation of the power system. Since interharmonics are difficult to obtain in an intuitive way, this paper first introduces the monitoring methods of interharmonics. Based on accurately monitoring the interharmonics, further discussions were carried out around the interharmonic suppression strategies. Through the analysis of the advantages and disadvantages of various interharmonic monitoring methods and suppression strategies, guidance can be provided for the selection of interharmonic monitoring methods and suppression strategies in different scenarios.https://www.mdpi.com/1996-1073/18/13/3426PV systemsinterharmonicsmonitoring methodssuppression strategies
spellingShingle Mingxuan Mao
Yuhao Tang
Jiahan Chen
Zhao Xu
Haojin Sun
Chengqi Yin
Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review
Energies
PV systems
interharmonics
monitoring methods
suppression strategies
title Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review
title_full Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review
title_fullStr Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review
title_full_unstemmed Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review
title_short Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review
title_sort monitoring and suppression strategies of the interharmonic in the grid connected photovoltaic system a review
topic PV systems
interharmonics
monitoring methods
suppression strategies
url https://www.mdpi.com/1996-1073/18/13/3426
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