A study of harmonic spatial propagation along AC power lines of meshed power systems
Abstract Severe harmonics propagation in power systems may result in increased power losses and equipment damages. In this paper, an elliptic formula is derived to analyse the harmonic spatial distribution not only at the substations but also along the power lines or cables and to give a system‐wide...
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| Format: | Article |
| Language: | English |
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Wiley
2022-07-01
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| Series: | IET Circuits, Devices and Systems |
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| Online Access: | https://doi.org/10.1049/cds2.12107 |
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| author | Chengxi Liu Zhen Gong Filipe Faria da Silva Qiupin Lai Pan Hu |
| author_facet | Chengxi Liu Zhen Gong Filipe Faria da Silva Qiupin Lai Pan Hu |
| author_sort | Chengxi Liu |
| collection | DOAJ |
| description | Abstract Severe harmonics propagation in power systems may result in increased power losses and equipment damages. In this paper, an elliptic formula is derived to analyse the harmonic spatial distribution not only at the substations but also along the power lines or cables and to give a system‐wide overview of harmonic levels. It is observed that harmonic distortion along power lines can be higher than that at the busbars and the maximum amplitude of harmonic voltage and current denoted as weak positions along power lines depends on the steady‐state harmonic angle difference of voltage and current at busbars, the length of power lines, and the harmonic order. All cases are modelled in detail by analytical geometry and analysed in MATLAB. In this regard, a method to identify the weak positions in terms of maximum harmonic levels in a power system is presented, and its corresponding harmonic orders are determined. The accuracy of the model is tested using time‐domain simulations in PSCAD/EMTDC. |
| format | Article |
| id | doaj-art-28175780e1f445cc8a590a7f9dac3faf |
| institution | OA Journals |
| issn | 1751-858X 1751-8598 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Circuits, Devices and Systems |
| spelling | doaj-art-28175780e1f445cc8a590a7f9dac3faf2025-08-20T02:04:18ZengWileyIET Circuits, Devices and Systems1751-858X1751-85982022-07-0116433734910.1049/cds2.12107A study of harmonic spatial propagation along AC power lines of meshed power systemsChengxi Liu0Zhen Gong1Filipe Faria da Silva2Qiupin Lai3Pan Hu4School of Electrical Engineering and Automation Wuhan University Wuhan ChinaSchool of Electrical Engineering and Automation Wuhan University Wuhan ChinaDepartment of Energy Technology Aalborg University Aalborg DenmarkSchool of Electrical Engineering and Automation Wuhan University Wuhan ChinaHubei Electric Power Research Institute Wuhan ChinaAbstract Severe harmonics propagation in power systems may result in increased power losses and equipment damages. In this paper, an elliptic formula is derived to analyse the harmonic spatial distribution not only at the substations but also along the power lines or cables and to give a system‐wide overview of harmonic levels. It is observed that harmonic distortion along power lines can be higher than that at the busbars and the maximum amplitude of harmonic voltage and current denoted as weak positions along power lines depends on the steady‐state harmonic angle difference of voltage and current at busbars, the length of power lines, and the harmonic order. All cases are modelled in detail by analytical geometry and analysed in MATLAB. In this regard, a method to identify the weak positions in terms of maximum harmonic levels in a power system is presented, and its corresponding harmonic orders are determined. The accuracy of the model is tested using time‐domain simulations in PSCAD/EMTDC.https://doi.org/10.1049/cds2.12107harmonic distortionharmonics suppression |
| spellingShingle | Chengxi Liu Zhen Gong Filipe Faria da Silva Qiupin Lai Pan Hu A study of harmonic spatial propagation along AC power lines of meshed power systems IET Circuits, Devices and Systems harmonic distortion harmonics suppression |
| title | A study of harmonic spatial propagation along AC power lines of meshed power systems |
| title_full | A study of harmonic spatial propagation along AC power lines of meshed power systems |
| title_fullStr | A study of harmonic spatial propagation along AC power lines of meshed power systems |
| title_full_unstemmed | A study of harmonic spatial propagation along AC power lines of meshed power systems |
| title_short | A study of harmonic spatial propagation along AC power lines of meshed power systems |
| title_sort | study of harmonic spatial propagation along ac power lines of meshed power systems |
| topic | harmonic distortion harmonics suppression |
| url | https://doi.org/10.1049/cds2.12107 |
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