Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Nianwen Xiang"'
Publikováno v:
AIP Advances, Vol 14, Iss 10, Pp 105311-105311-8 (2024)
Lightning strikes on aircraft are mainly due to self-triggered bidirectional leader discharges. Understanding the physical processes of lightning strikes is the basis for designing appropriate lightning protection measures. For this purpose, the deve
Externí odkaz:
https://doaj.org/article/8e95260c1f5d41fe8c139bce769b7a0a
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 10, Iss 5, Pp 2255-2264 (2024)
The cluster DC voltage balancing control adopting zero-sequence voltage injection is appropriate for the star-connected cascaded H-bridge STATCOM because no zero-sequence currents are generated in the three-phase three-wire system. However, as the ze
Externí odkaz:
https://doaj.org/article/34d9a5f5a5824d94a96e06a081734bf6
Autor:
Zexin Zhao, Weijiang Chen, Zhichang Yang, Guoliang Zhao, Bin Han, Yunfei Xu, Nianwen Xiang, Shulai Wang
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 10, Iss 1, Pp 235-247 (2024)
The modular multilevel matrix converter (M3C) is a potential frequency converter for low-frequency AC transmission. However, capacitor voltage control of high-voltage and large-capacity M3C is more difficult, especially for voltage balancing between
Externí odkaz:
https://doaj.org/article/a33dafb187864527a8127c17bdfeb19b
Autor:
Shengxin Huang, Weijiang Chen, Zhong Fu, Yufei Fu, Nianwen Xiang, Xinjie Qiu, Weidong Shi, Dengfeng Cheng, Zhiyuan Zhang
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
The lightning's nature is that different-polarity leaders extend in air. Only negative leaders' development was previously associated to floating plasma. We found that the floating plasma could also lead the positive leader stepwise development.
Externí odkaz:
https://doaj.org/article/13a308a527c54858bec207bc4a5c4682
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 520-526 (2022)
In recent years, composite materials cross-arm (CMCA) towers have been gradually used in 10 kV, 35 kV or other transmission lines with lower voltage level in China. However, it is rarely used in higher voltage level transmission lines, especially in
Externí odkaz:
https://doaj.org/article/a44fb47d6fca4133a20e3bf0a2dfdd53
Autor:
Ying Yang, Sen Wang, Shoufu Wang, Qijiang Wang, Wei Xie, Lin Ye, Jinlin Tu, Xiaozhao Zhang, Guoqing Li, Nianwen Xiang
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 581-588 (2022)
Lightning trip out of collecting line has become a serious threat to the safe and reliable operation of mountain wind farm. It is urgent to carry out lightning trip out risk assessment and differential protection of 35kV collecting line of mountain w
Externí odkaz:
https://doaj.org/article/ad9ef4aef5ec4d899eb12bdbf4f35809
Autor:
Nianwen Xiang, Hongyang Gu, Kejie Li, Lingyun Cheng, Jin Yang, Wei Zhang, Congying Han, Chun Yang
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 1224-1230 (2022)
If the follow-current interruption time of gas discharge tube is too long, it will lead to short circuit trip of equipment, even breakdown and damage. In order to mitigate the phenomenon and propose corresponding protective measures, the follow-curre
Externí odkaz:
https://doaj.org/article/58eb63d63a5b40fdba2bf1a8fe6d9e88
Publikováno v:
High Voltage, Vol 6, Iss 6, Pp 1079-1091 (2021)
Abstract The puncture of glass fibre reinforced polymer (GFRP) laminate is a primary damage pattern of wind turbine blades due to lightning strikes. A numerical simulation model of positive streamer propagation in a needle‐to‐plate air gap with a
Externí odkaz:
https://doaj.org/article/48bb29ae509240208eabe9ed94010a06
Publikováno v:
Energy Reports, Vol 6, Iss , Pp 483-490 (2020)
The direct lightning protection system of the space launch site can achieve effective protection against direct lightning. However, the lightning electromagnetic pulse cannot be ignored while the rocket waiting on the platform. The three-dimensional
Externí odkaz:
https://doaj.org/article/609ffe1e8a074fc19447f6151e2fdd1a
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 6, Iss 3, Pp 638-648 (2020)
Externí odkaz:
https://doaj.org/article/5c18b0651ed042538cd91d3fb8eb4b44