He Hengxin
Huazhong University of Science and Technology
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Publication
Featured researches published by He Hengxin.
power and energy society general meeting | 2009
He Junjia; He Hengxin
This paper is to investigate the lightning shielding performance of the HVDC transmission line when taking the dc operation voltage into account. Firstly, the equivalency of the scale experiment is discussed from the following aspects: (a) the determination of test scale factor; (b) the electric field simulation of downward leader; (c) nominal field simulation of the HVDC transmission line. Secondly, a test circuit is established taking into account of the isolation of the dc charge circuit and surge generator. The exposure space distribution of the HVDC transmission line is obtained from a large amount discharge experiments. The total number of recorded discharge is over 7500 times. The competition between upward streamers originating from the grounded wire and polar conductor is observed by using the high-speed digital camera. Finally, the effectiveness mechanism of the dc operation voltage on the lightning shielding performance of HVDC transmission line is analyzed according to the recorded phenomenon. Based on the EGM conception, the qualitatively effect of the dc operation voltage is calculated. It reveals that the shielding failure flashover rate of the 500kV positive polar is 4.84 times than that not taking account of the dc operation voltage.
Archive | 2015
Zhao Xiangen; Li Tianwei; Yang Rui; He Hengxin; He Junjia; Luo Bing; Lyu Jinzhuang; Liu Lei; Wang Guoli
High Voltage Engineering | 2015
Yue Yishi; Chen Guanyuan; Zhang Jiangong; He Hengxin; He Junjia
Proceeding of the CSEE | 2017
Zhao Xiangen; Yue Yishi; Yang Yongchao; Xiao Pei; He Junjia; He Hengxin; Chen Weijiang
Archive | 2017
Yu Hui; Chen Weijiang; Li Guofu; Liu Zhifang; Yin Yu; Li Huibing; He Hengxin
Zhongguo Dianji Gongcheng Xuebao | 2016
Xie Yaoheng; Liu Yun; Ye Huisheng; He Hengxin; He Junjia
Zhongguo Dianji Gongcheng Xuebao | 2016
Xie Yaoheng; Liu Yun; Ye Huisheng; He Hengxin; He Junjia
Archive | 2016
Zhang Jiangong; Chen Guanyuan; Lu Yao; He Hengxin; Liu Jianben; He Junjia; Gan Zheyuan; Yue Yishi
IEEE Conference Proceedings | 2016
Dong Shuyi; He Hengxin; Yuan Zhao; Yang Ying; He Junjia; He Huiwen
IEEE Conference Proceedings | 2016
He Hengxin; He Junjia; Zhao Xiangen; Chen Weijiang; Alessandro Franco’D