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Simulation Study on Growth Characteristics of Electrical Tree in Two-dimensional Microsheet Composite by Orientation Regulating
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Yuanxiang ZHOU1, 2, Dexiong HU1, Yunxiao ZHANG2, Ling ZHANG2, Chenyuan TENG2, Meng HUANG3
Insulating Materials | 2022, 55(1) : 24 - 31
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Insulating Materials | 2022, 55(1): 24-31
• Material Research •
Simulation Study on Growth Characteristics of Electrical Tree in Two-dimensional Microsheet Composite by Orientation Regulating
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Yuanxiang ZHOU1, 2, Dexiong HU1, Yunxiao ZHANG2, Ling ZHANG2, Chenyuan TENG2, Meng HUANG3
Affiliations
  • 1The Wind Solar Storage Division of State Key Lab of Control and Simulation of Power System and Generation Equipment, School of Electrical Engineering, Xinjiang University, Urumqi 830047, China
  • 2State Key Lab of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
  • 3State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Published: 2022-01-20 doi: 10.16790/j.cnki.1009-9239.im.2022.01.004
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In order to obtain the influence of orientation angle of two-dimensional microsheet on the growth characteristics of electrical tree in composite dielectrics, on the basis of WZ breakdown model of fractal media, we studied the growth and fractal dimension characteristics of electrical tree under different microsheet orientation angles, growth probability index, and discharge threshold voltage. The change of electric field caused by the change of two-dimensional microsheet orientation angle was analyzed, and the influence mechanism of microsheet on the growth of electrical tree was explained. The results show that when the microsheet is oriented perpendicular to the electric field, the electrical tree has the largest fractal dimension and is most difficult to breakdown. With the decrease of the angle formed by microsheet and electric field direction, both the fractal dimension and breakdown time of electrical tree decrease. With the increase of the growth probability index or threshold voltage, the fractal dimension of electrical tree decreases, and the influence on the electrical tree fractal dimension in microcomposite dielectrics with different orientation angles increases. When the orientation angle of microsheet is perpendicular to the electric field, the electric field distribution is relatively uniform. With the increase of microsheet orientation angle, the electric field concentrates at the both ends of microsheet, and the closer the adjacent microsheet, the more concentration the electric field.

WZ model  /  two-dimensional microsheet  /  electrical tree  /  orientation angle  /  electric field distribution
Yuanxiang ZHOU, Dexiong HU, Yunxiao ZHANG, Ling ZHANG, Chenyuan TENG, Meng HUANG. Simulation Study on Growth Characteristics of Electrical Tree in Two-dimensional Microsheet Composite by Orientation Regulating[J]. Insulating Materials, 2022 , 55 (1) : 24 -31 . DOI: 10.16790/j.cnki.1009-9239.im.2022.01.004
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.01.004
  • Receive Date：2021-01-25
  • Online Date：2025-12-23
  • Published：2022-01-20
Article Data
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History
  • Received：2021-01-25
  • Revised：2021-03-04
Funding
Affiliations
    1The Wind Solar Storage Division of State Key Lab of Control and Simulation of Power System and Generation Equipment, School of Electrical Engineering, Xinjiang University, Urumqi 830047, China
    2State Key Lab of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
    3State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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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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