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Dive into the research topics where An Ranran is active.

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Featured researches published by An Ranran.


china international conference on electricity distribution | 2014

Analysis of line parameter symmetry and phase sequence arrange concerning four circuits on one tower

Li Tiangang; Long Mao; An Ranran; Tang Cui; Wang Yi; He Maohui

Asymmetry of line parameter has great impact on the safe operation of the power system and its relay protections performance, while different phase sequence arrange will affect the symmetry of transmission lines. A calculation method of sequence impedance parameter is firstly put for ward, concerning four circuits on one tower. On this basis, the paper analyzes the effect on line parameter symmetry of different phase sequence arrange by calculating single-sequence component unbalanced degree and composite-sequence component unbalanced degree. Further, superior phase sequence arrange schemes of same-voltage and mixed -voltage four circuits on one tower is proposed. The conclusion will contribute to the standard design of four circuits on one tower.


Archive | 2013

Micro-grid experiment system

Zhang Yuan; Chen Xun; Zeng Jie; Chen Rui; An Ranran; Zhao Yanjun; Sheng Chao; Chen Xiaoke; Wang Qian; Wang Yi; Hu Yulan; Yang Fenyan; Sun Wen; Ma Ming; Li Ding; Weng Hongjie; Zhang Jian; Luo Hang; Wang Ling; Zhu Lianghe; Zhang Yue; Fu Cong; Liu Zhengfu; Li Lanfang; Luo Yunsong


Archive | 2014

High-voltage transmission line power frequency parameter actual measuring device capable of resisting against high-induced voltage interference

Chen Xiaoke; Zhao Yanjun; Yin Jianhua; Zhao Jinquan; Sheng Chao; Zeng Jie; Tang Jingxing; Wang Ling; Zhang Yue; Yang Penyan; Sun Wen; Zhang Jian; Luo Hang; Wang Yi; An Ranran; Li Helong; Jiang Lianggang


Archive | 2015

Line selection method for medium-voltage power distribution network fault traveling wave

Wang Yi; Zhang Jian; Hu Yulan; An Ranran; Chen Xun; Zhao Bing; Zeng Xiangjun; Luo Yong; Li Tiangang; Zhang Yuan; Mei Chenglin


Archive | 2013

Flexible simulation test platform for electric power system transformer protection devices

An Ranran; Hu Yulan; Wang Yi; Luo Hang; Zhang Jian; Li Tiangang; Mei Chenglin


Archive | 2015

Off-grid and grid-connection control method and system for virtual synchronous generator

Tang Niang; Sheng Chao; Sun Wen; Jin Yang; Weng Hongjie; Xiao Xiangning; Yuan Zheng; Chen Rui; Zhang Junfeng; Zhu Lianghe; Luo Yunsong; Zhang Yichao; Wu Xiaoyu; Liu Zhengfu; An Ranran; Zhao Yanjun


Archive | 2015

Online measurement method for impedance parameter of three-phase asymmetric power transmission line

Zhang Yue; Chen Xiaoke; Zhao Yanjun; Zhao Jinquan; Sheng Chao; Sun Wen; Fu Cong; Wang Qian; Luo Pantian; Tang Jingxing; An Ranran; Zhang Jian; Zhang Yuan; Wang Yi; Hu Yulan; Wang Ling; Ma Ming; Weng Hongjie; Zhang Junfeng; Guo Mingli; Gao Yan; Yuan Weiming; He Xi; Hou Yanyan; Wan Wan


Archive | 2014

Electric transmission line power-frequency parameter on-line measurement method based on distribution parameter model

Zhao Yanjun; Yang Fenyan; Sun Wen; Chen Xiaoke; Sheng Chao; Zhao Jinquan; Tang Jingxing; Wang Ling; Fu Cong; Zhang Yue; Zeng Jie; Wang Qian; An Ranran; Luo Hang; Zhang Jian; Zhang Yuan; Wang Yi; Hu Yulan; Zhang Junfeng; Yuan Weiming; He Xi; Hou Yanyan; Wan Wan


Archive | 2013

Anti-high induced voltage interference actual measurement device for power frequency parameters of high voltage transmission line

Sheng Chao; Yin Jianhua; Chen Xiaoke; Zhao Yanjun; Zhao Jinquan; Wang Ling; Tang Jingxing; Zeng Jie; Yang Fenyan; Sun Wen; Zhang Yue; Li Helong; Jiang Lianggang; An Ranran; Wang Yi; Luo Hang; Zhang Jian


Archive | 2014

Zero-sequence parameter on-line identification method for 200 kV or more single-circuit power transmission lines

Zhao Yanjun; Sheng Chao; Chen Xiaoke; Bi Tianshu; Xue Ancheng; Huang Zihua; Yang Fenyan; Sun Wen; Zhang Yue; Tang Jingxing; Wang Ling; Fu Cong; Wang Qian; Zeng Jie; An Ranran; Zhang Jian; Zhang Yuan; Wang Yi; Hu Yulan; Weng Hongjie; Zhang Junfeng; Chen Rui; Ma Ming

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Sheng Chao

Electric Power Research Institute

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Wang Yi

Electric Power Research Institute

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Zhang Jian

North China Electric Power University

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Chen Xiaoke

Electric Power Research Institute

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Zhang Yuan

Communication University of China

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Zeng Jie

Electric Power Research Institute

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Wang Ling

Electric Power Research Institute

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Tang Niang

North China Electric Power University

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Ma Ming

State Grid Corporation of China

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Li Tiangang

Electric Power Research Institute

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