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Correlation pilot protection of high wind and photovoltaic power penetration distribution network based on 5G
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Kaihua Zhi1, Zhi Yuan1, Weiqing Wang1, Jing Cheng1, Weihong Zao2
Renewable Energy Resources | 2024, 42(5) : 685 - 693
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Renewable Energy Resources | 2024, 42(5): 685-693
Correlation pilot protection of high wind and photovoltaic power penetration distribution network based on 5G
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Kaihua Zhi1, Zhi Yuan1, Weiqing Wang1, Jing Cheng1, Weihong Zao2
Affiliations
  • 1 Engineering Research Center of Education Ministry for Renewable Energy Power Generation and Grid-connected Control Xinjiang University Urumqi 830017 China
  • 2 Electric Power Research Institute State Grid Xinjiang Electric Power Co., Ltd. Urumqi 830011 China
Published: 2024-05-20
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In the high wind and photovoltaic power penetration distribution network, under the influence of the control strategy for inverter, the fault current weakfeed characteristic is obvious, the traditional power frequency protection's operation performance is declining, and even cause unwanted operation or refuse operation. In this paper, the fault current characteristics of synchronous generator and inverter interfaced distributed generation power supply are analyzed, and it is found that there is an obvious difference between the fault current vectors on both sides of the distribution network during internal and external faults, and then the correlation coefficient is used to measure the vector correlation and construct the action criteria. Based on 5G communication technology, a new scheme of correlation pilot protection for high wind and photovoltaic power penetration distribution network is proposed. The simulation results show that the proposed protection scheme can identify the short circuit fault of high wind and photovoltaic power penetration distribution network quickly and stably, has a strong ability to withstand noise, and solves the influence of 5G time delay fluctuation on pilot protection.

pilot protection  /  correlation coefficient  /  high permeability  /  5G
Kaihua Zhi, Zhi Yuan, Weiqing Wang, Jing Cheng, Weihong Zao. Correlation pilot protection of high wind and photovoltaic power penetration distribution network based on 5G[J]. Renewable Energy Resources, 2024 , 42 (5) : 685 -693 .
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Year 2024 volume 42 Issue 5
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Article Info
  • Receive Date：2022-05-23
  • Online Date：2025-07-22
  • Published：2024-05-20
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  • Received：2022-05-23
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Affiliations
    1 Engineering Research Center of Education Ministry for Renewable Energy Power Generation and Grid-connected Control Xinjiang University Urumqi 830017 China
    2 Electric Power Research Institute State Grid Xinjiang Electric Power Co., Ltd. Urumqi 830011 China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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