Calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access
Abstract Substation line losses vary with the number of connected PV units due to power flow changes. To ensure the accurate line-loss rate calculations, this study investigates a novel computation method for grid-connected PV systems that accounts for power flow variations. The proposed method empl...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-04-01
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| Series: | Sustainable Energy Research |
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| Online Access: | https://doi.org/10.1186/s40807-025-00167-x |
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| author | Shengbo Sun Chao Cheng Shujun Ji Wei Cui Wei Ge Shifang Hao |
| author_facet | Shengbo Sun Chao Cheng Shujun Ji Wei Cui Wei Ge Shifang Hao |
| author_sort | Shengbo Sun |
| collection | DOAJ |
| description | Abstract Substation line losses vary with the number of connected PV units due to power flow changes. To ensure the accurate line-loss rate calculations, this study investigates a novel computation method for grid-connected PV systems that accounts for power flow variations. The proposed method employs an improved K-medoids clustering algorithm for substation area classification, optimized by an enhanced Cuckoo algorithm to minimize classification errors. Based on PV integration data, the power flow calculation model (using MPPT control) categorizes substations into single-PV-integrated and multi-PV-integrated types to analyze post-connection power flow changes. Through simulation tests, the maximum MAPE of this method is only 0.5% for both cases. The method achieves high-accuracy line-loss rate calculations while considering power flow variations after PV integration. |
| format | Article |
| id | doaj-art-5c19a600bcaa44fbadf679d3099095d0 |
| institution | Kabale University |
| issn | 2731-9237 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Sustainable Energy Research |
| spelling | doaj-art-5c19a600bcaa44fbadf679d3099095d02025-08-20T03:52:24ZengSpringerOpenSustainable Energy Research2731-92372025-04-0112111810.1186/s40807-025-00167-xCalculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation accessShengbo Sun0Chao Cheng1Shujun Ji2Wei Cui3Wei Ge4Shifang Hao5State Grid Hebei Electric Power Co., Ltd. Marketing Service CenterState Grid Hebei Electric Power Co., Ltd.State Grid Hebei Electric Power Co., Ltd. Marketing Service CenterState Grid Hebei Electric Power Co., Ltd.State Grid Hebei Electric Power Co., Ltd.State Grid Hebei Electric Power Co., Ltd. Marketing Service CenterAbstract Substation line losses vary with the number of connected PV units due to power flow changes. To ensure the accurate line-loss rate calculations, this study investigates a novel computation method for grid-connected PV systems that accounts for power flow variations. The proposed method employs an improved K-medoids clustering algorithm for substation area classification, optimized by an enhanced Cuckoo algorithm to minimize classification errors. Based on PV integration data, the power flow calculation model (using MPPT control) categorizes substations into single-PV-integrated and multi-PV-integrated types to analyze post-connection power flow changes. Through simulation tests, the maximum MAPE of this method is only 0.5% for both cases. The method achieves high-accuracy line-loss rate calculations while considering power flow variations after PV integration.https://doi.org/10.1186/s40807-025-00167-xPhotovoltaic power generation accessTidal current changeSubstation line loss rateImproved K-medoids clusteringPlatform classificationPressure drop method |
| spellingShingle | Shengbo Sun Chao Cheng Shujun Ji Wei Cui Wei Ge Shifang Hao Calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access Sustainable Energy Research Photovoltaic power generation access Tidal current change Substation line loss rate Improved K-medoids clustering Platform classification Pressure drop method |
| title | Calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access |
| title_full | Calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access |
| title_fullStr | Calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access |
| title_full_unstemmed | Calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access |
| title_short | Calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access |
| title_sort | calculation method of line loss rate of substation areas considering tidal current variation with photovoltaic power generation access |
| topic | Photovoltaic power generation access Tidal current change Substation line loss rate Improved K-medoids clustering Platform classification Pressure drop method |
| url | https://doi.org/10.1186/s40807-025-00167-x |
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