作者机构：
graduate student of the School of Electrical & Information Engineering,Changsha University of Scienc;IEEE;School of Electrical & Information Engineering,Changsha University of Science and Technology,Hunan P
会议名称：
第七届电力系统技术国际会议(POWERCON 2010)
会议时间：
2010-10-25
会议地点：
杭州
会议论文集名称：
第七届电力系统技术国际会议(POWERCON 2010)论文集
关键词：
Capacitance current:Neutral-point:Overvoltage:Wind farm:Arc-suppression coil:ATP:Grounding arc foult:Arc medium electric strength recovery:Neutral point ungrounded system:Reactor
摘要：
Neutral-point non-effectively grounded system is used in the wind farm with complex structure, high cost, wide distribution and higher capacitance current. This paper presents an arc-suppression method for the neutral non-effective grounding system-voltage arc-suppression method. A reactor is directly connected to the fault bus and ground. The voltage of the reactor is used to suppress the voltage of the fault phase, to make sure it become much smaller than the amplitude of electric strength recovery, undermine the arc renewed mechanism, and remove the arc grounding. Simulation result in the paper verifies the validity and advantages of the method and it is not affected by grounding current, eliminating the complex track and compensation calculation. Arc-suppression method is simple. Especially suitable for system with high capacity current，such as cables wind farms.
期刊：
Journal of Computational Information Systems,2012年8(7):2915-2920 ISSN：1553-9105
通讯作者：
Zeng, Z.(hncs6699@yahoo.com.cn)
作者机构：
[Zeng, Zhezhao; Xiao, Jinjin] College of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410014, China;[Tu, Yuxiang] College of Computer and Communication Engineering, Hunan University, Changsha 410086, China
通讯机构：
College of Electrical and Information Engineering, Changsha University of Science and Technology, China
关键词：
Neural network;RLS algorithm;Special linear system
作者机构：
[Deng, Shulei] Department of Electric Power Engineering, Chongqing Electric Power College, China;[Li, Anjun; Huang, Yuxiang; Zhou, Xiong; Liu, Baoping] School of Electrical and Information Engineering, Changsha University of Science and Technology, China
通讯机构：
[Deng, S.] D;Department of Electric Power Engineering, China
会议名称：
2012 International Conference on Advances in Mechanics Engineering, ICAME 2012
会议时间：
3 August 2012 through 5 August 2012
关键词：
Controllable loads;Frequency regulation;Plug-in electric vehicles (PEVs)
作者：
Aixiang Zeng;Xiao'an Qin;Yuanyuan Wang;Hui Pan
期刊：
International Journal of Advanced Mechatronic Systems,2012年4(1):18-24 ISSN：1756-8412
通讯作者：
Zeng, A.
作者机构：
[Zeng A.] School of Physics and Electronic Science, Changsha University of Science and Technology, 960, Wanjiali South RD, Changsha, Hunan, 410004, China;[Qin X.] Wuhan Power Supply Company, Guandong Science and Technology Industry Park, 14F, Gaoke Plaza, Wuhan, Hubei, 430074, China;[Wang Y.; Pan H.] School of Electrical and Information Engineering, Changsha University of Science and Technology, 960, Wanjiali South RD, Changsha, Hunan, 410004, China
通讯机构：
[Zeng, A.] S;School of Physics and Electronic Science, Changsha University of Science and Technology, 960, Wanjiali South RD, China
关键词：
EHV transmission lines;extra high voltage;non-unit transient protection;Hilbert-Huang transform;HHT energy spectrum;travelling waves;fault protection;wave protection;power systems stability;power systems economy;simulation;internal faults;external faults.
摘要：
Traditional double-terminal travelling wave protection schemes are unable to satisfy the requirement of power systems stability and economy. In order to solve these problems for extra high voltage (EHV) transmission lines protection, a novel non-unit transient protection based on HHT energy spectrum is developed. The travelling-wave characteristics between internal faults and external faults are analysed. The main difference is that the travelling wave high frequency components energy caused by the internal faults is larger than that caused by the external faults due to the influences of line trap and bus-to-ground capacitance. Intrinsic mode functions (IMF) of travelling wave are extracted by the empirical mode decomposition (EMD). And then Hilbert-Huang transform (HHT) is utilised to calculate the corresponding instantaneous frequency of each IMF component to obtain energy spectrum. Finally, the energy spectrum is applied to distinguish the internal and external fault. EMTP simulation results show that, under different fault conditions, the novel scheme can distinguish reliably the internal faults from external faults and protect the whole transmission line with high sensitivity.
作者机构：
[Zhou, Renjun; hao; Ran, Xiaohong; Li, Xinglang] School of Electric and Information Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan Province, China;[Fu, Jingqian; Mao, Falong] Power New Energy Co. Ltd. of Hunan National Energy, Changsha 410007, Hunan Province, China
通讯机构：
School of Electric and Information Engineering, Changsha University of Science and Technology, China
期刊：
The Journal of Information and Computational Science,2012年9(8):2305-2311 ISSN：1548-7741
通讯作者：
Zeng, Z.(hncs6699@yahoo.com.cn)
作者机构：
[Zeng, Zhezhao; Zhang, Bin; Zhou, Xu] College of Electric and Information Engineering, Changsha University of Science and Technology, Changsha 410014, China
通讯机构：
College of Electric and Information Engineering, Changsha University of Science and Technology, China
关键词：
Neural network, RLS algorithm;Symmetric positive definite linear systems
作者机构：
[施方圆; 周羽生; 邝江华] Changsha University of Science and Technology, Changsha 410114, China;[石晶; 唐跃进] Huazhong University of Science and Technology, Wuhan 430074, China
通讯机构：
[Zhou, Y.-S.] C;Changsha University of Science and Technology, Changsha 410114, China
期刊：
Applied Mechanics and Materials,2012年203:380-384 ISSN：1660-9336
通讯作者：
Zhang, X.(zhangxy6722@126.com)
作者机构：
[Yang, Hongming; Zhang, Xiaoyang; Xiong, Luocheng] School of Electrical and Information Engineering, Changsha University of Science and Technology, China;[Wu, Jiajie] Department of Electric Power Engineering, Chongqing Electric Power College, China
通讯机构：
[Zhang, X.] S;School of Electrical and Information Engineering, China
会议名称：
2012 International Conference on Mechatronic Systems and Automation Systems, MSAS 2012
会议时间：
21 July 2012 through 21 July 2012
关键词：
Charge/Discharge;Plug-in Hybrid Electric Vehicle (PHEV);Probabilistic Power Flow;Vehicle-to-Grid (V2G)
