A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station Areas
In low-voltage power distribution station areas (DSAs), sensor devices and communication networks are often inadequate. Therefore, the control strategies mainly used for soft open points (SOPs) based on global information in medium-voltage distribution networks are difficult to be directly applied t...
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MDPI AG
2024-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/6/1976 |
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| author | Zhichun Yang Huaidong Min Fan Yang Yang Lei Xiangling He Haichang Sun Xu Tang |
| author_facet | Zhichun Yang Huaidong Min Fan Yang Yang Lei Xiangling He Haichang Sun Xu Tang |
| author_sort | Zhichun Yang |
| collection | DOAJ |
| description | In low-voltage power distribution station areas (DSAs), sensor devices and communication networks are often inadequate. Therefore, the control strategies mainly used for soft open points (SOPs) based on global information in medium-voltage distribution networks are difficult to be directly applied to low-voltage DSAs. This paper proposes a novel control strategy for SOP that only requires collecting the local information of SOP and the load rate of transformers. It aims to address the issues faced of voltage violations at the end of feeders and the load rate imbalance among adjacent DSAs under the current high penetration of renewable energy sources. In this paper, first, a sensor network consisting of sensor devices located at the transformers and each port of the SOP is introduced for information collection. Then, based on the sensitivity relationship between the node voltage and the injected power, considering capacity and voltage safety constraints, the adjustable range of the active power output for each port of the SOP is derived. According to this range, the operating states of the DSAs are categorized into four scenarios. For each scenario, the adjustment amount of SOP output power is determined to achieve comprehensive regulation of terminal voltage and load rate of all DSAs interconnected by SOP. Finally, the effectiveness of the proposed strategy is verified based on a simulation model of three flexible interconnected DSAs established in MATLAB/Simulink. |
| first_indexed | 2024-04-24T17:49:13Z |
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| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-24T17:49:13Z |
| publishDate | 2024-03-01 |
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| spelling | doaj.art-3b03611517e748afacf0a33e7ba847d22024-03-27T14:04:17ZengMDPI AGSensors1424-82202024-03-01246197610.3390/s24061976A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station AreasZhichun Yang0Huaidong Min1Fan Yang2Yang Lei3Xiangling He4Haichang Sun5Xu Tang6Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaHubei Key Laboratory of Power Equipment & System Security for Integrated Energy, Wuhan 430072, ChinaHubei Key Laboratory of Power Equipment & System Security for Integrated Energy, Wuhan 430072, ChinaHubei Key Laboratory of Power Equipment & System Security for Integrated Energy, Wuhan 430072, ChinaIn low-voltage power distribution station areas (DSAs), sensor devices and communication networks are often inadequate. Therefore, the control strategies mainly used for soft open points (SOPs) based on global information in medium-voltage distribution networks are difficult to be directly applied to low-voltage DSAs. This paper proposes a novel control strategy for SOP that only requires collecting the local information of SOP and the load rate of transformers. It aims to address the issues faced of voltage violations at the end of feeders and the load rate imbalance among adjacent DSAs under the current high penetration of renewable energy sources. In this paper, first, a sensor network consisting of sensor devices located at the transformers and each port of the SOP is introduced for information collection. Then, based on the sensitivity relationship between the node voltage and the injected power, considering capacity and voltage safety constraints, the adjustable range of the active power output for each port of the SOP is derived. According to this range, the operating states of the DSAs are categorized into four scenarios. For each scenario, the adjustment amount of SOP output power is determined to achieve comprehensive regulation of terminal voltage and load rate of all DSAs interconnected by SOP. Finally, the effectiveness of the proposed strategy is verified based on a simulation model of three flexible interconnected DSAs established in MATLAB/Simulink.https://www.mdpi.com/1424-8220/24/6/1976low-voltage power distribution station area (DSA)load rate imbalancerenewable energy consumptionsoft open point (SOP)sensor networksvoltage regulation |
| spellingShingle | Zhichun Yang Huaidong Min Fan Yang Yang Lei Xiangling He Haichang Sun Xu Tang A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station Areas Sensors low-voltage power distribution station area (DSA) load rate imbalance renewable energy consumption soft open point (SOP) sensor networks voltage regulation |
| title | A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station Areas |
| title_full | A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station Areas |
| title_fullStr | A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station Areas |
| title_full_unstemmed | A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station Areas |
| title_short | A Novel Control Strategy for Soft Open Point to Address Terminal Voltage Violations and Load Rate Imbalance in Low-Voltage Power Distribution Station Areas |
| title_sort | novel control strategy for soft open point to address terminal voltage violations and load rate imbalance in low voltage power distribution station areas |
| topic | low-voltage power distribution station area (DSA) load rate imbalance renewable energy consumption soft open point (SOP) sensor networks voltage regulation |
| url | https://www.mdpi.com/1424-8220/24/6/1976 |
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