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Adaptive distance protection for distributed generation distribution network with T-connected inverter interfaced distributed generation
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Jianwen Zhao, Hongbo Zhang, Yujia Hu
Renewable Energy Resources | 2024, 42(1) : 64 - 70
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Renewable Energy Resources | 2024, 42(1): 64-70
Adaptive distance protection for distributed generation distribution network with T-connected inverter interfaced distributed generation
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Jianwen Zhao, Hongbo Zhang, Yujia Hu
Affiliations
  • 1 School of Electrical and Control Engineering Xi'an University of Science and Technology Xi'an 710600 China
Published: 2024-01-20
Outline
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With the continuous development of renewable energy, a large number of inverter interfaced distributed generations (IIDG) are connected to the distribution network, which puts forward new requirements for the traditional relay protection technology. In order to improve the power supply reliability of distribution network and adapt to the new power system with large penetration of renewable energy, an adaptive distance protection is proposed for distribution network with Tconnected IIDG. Firstly, the influence of fault at different locations on the protection is analyzed. According to the output characteristics of IIDG in case of system fault, the output current of IIDG is calculated by BP neural network using the local electrical information of the protection, and the action value is set immediately. Because this method does not need to communicate with the remote, the action speed is fast, and the investment of the communication system is reduced. Finally, the 10 kV distribution network model with Tconnected IIDG is established in MATLAB, and compared with the traditional distance protection to verify the superiority of this protection method.

inverter interface distributed generation  /  T-connected  /  adaptive protection  /  distance protection
Jianwen Zhao, Hongbo Zhang, Yujia Hu. Adaptive distance protection for distributed generation distribution network with T-connected inverter interfaced distributed generation[J]. Renewable Energy Resources, 2024 , 42 (1) : 64 -70 .
Year 2024 volume 42 Issue 1
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Article Info
  • Receive Date:2022-12-25
  • Online Date:2025-07-22
  • Published:2024-01-20
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  • Received:2022-12-25
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    1 School of Electrical and Control Engineering Xi'an University of Science and Technology Xi'an 710600 China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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