Results 21 to 30 of about 176 (162)

Development of a Leader-End Reclosing Algorithm Considering Turbine-Generator Shaft Torque

Energies, 2017
High-speed auto-reclosing is used in power system protection schemes to ensure the stability and reliability of the transmission system; leader-follower auto-reclosing is one scheme type that is widely used.
Gyu-Jung Cho, Ji-Kyung Park, Seung-Hyun Sohn, Se-Jin Chung, Gi-Hyeon Gwon, Yun-Sik Oh, Chul-Hwan Kim   +6 more
doaj   +1 more source

Setting Free Fault Location for Three-Terminal Hybrid Transmission Lines Connected With Conventional and Renewable Resources

IEEE Access, 2023
Three-terminal hybrid transmission lines (TTHTLs) are attractive from both environmental and commercial view. Hybrid transmission lines are growing due to urbanization, connecting an industrial load and renewable integration.
Kukkala Likhitha, O. D. Naidu
doaj   +1 more source

Permanent fault identification for distribution network based on characteristic frequency signal injection using power electronic technology

Frontiers in Energy Research, 2022
In order to identify the fault nature when phase-to-phase short circuit fault occurs in distribution lines and realize adaptive reclosing of distribution lines more accurately, a fault identification scheme using an inverter-based power electronic ...
Zhihua Zhang, Zhihua Zhang, Jian Liu, Jian Liu, Biying Ren, Yuan Ma   +5 more
doaj   +1 more source

A quick fault location and isolation method for distribution network based on adaptive reclosing

IET Generation, Transmission & Distribution, 2022
Feeder automation is important to improve the reliability of power supply for distribution network. Existing voltage‐time feeder automation scheme exists the problems of long fault processing time and the upstream switches of the fault point need to ...
Wei Zhang, Zhongxue Chang, Chenhao Zhang, Guobing Song, Weibin Tan   +4 more
doaj   +1 more source

An adaptive reclosing method for active distribution network based on multi-harmonic current injection by IIDG

International Journal of Electrical Power & Energy Systems
The traditional auto-reclosing (AR) method based on fixed time delay cannot avoid blind reclosing on permanent faults. Moreover, with the increasing penetration of inverter interfaced distribution generations (IIDG) in the active distribution networks ...
Jinglei Deng, Liangzhong Yao, Fan Cheng, Shuai Liang, Shi Chen, Yubo Yuan   +5 more
doaj   +1 more source

Adaptive reclosing scheme for flexible HVDC grid with single-pole ground fault based on residual voltage zero-crossing detection

International Journal of Electrical Power & Energy Systems
To avoid the issue of blind reclosing in conventional flexible high voltage direct current (HVDC) grid, investigating an adaptive reclosing scheme capable of identifying fault nature and duration is essential.
Yue Dai, Hongchun Shu, Yutao Tang, Feng Gong   +3 more
doaj   +1 more source

An Adaptive Reclosing Scheme for Cross-Line Faults on Double-Circuit Wind Power Outgoing Lines with Shunt Reactors

Energies
Wind turbines are vulnerable to negative sequence current injection, the conventional automatic reclosing scheme for wind power outgoing lines, since we may inject negative sequence components into the system and reclose it without distinguishing the ...
Sen Hu, Chao Xie, Chunya Yin
doaj   +1 more source

Current state of the problems of functioning of relay protection and automation complexes used in an active adaptive network

Известия высших учебных заведений: Проблемы энергетики, 2023
THE PURPOSE. To analyze the influence of series compensation devices on the operating modes of power transmission lines. To identify problems of functioning of relay protection and automation complexes when they are used on power transmission lines with ...
I. Yu. Ivanov, V. V. Novokreshchenov, V. R. Ivanova   +2 more
doaj   +1 more source

Developments and Prospects of Voltage Source Converter‐High‐Voltage Direct Current Transmission Technology

High Voltage, EarlyView.
ABSTRACT Voltage source converter‐high‐voltage direct current (VSC‐HVDC) transmission is a key technology for renewable‐energy integration, regional grid interconnection and passive‐network power supply. This review summarises the development history of VSC‐HVDC, the evolution of converter topologies, its technical advantages and representative ...
Licheng Li, Yongxia Han, Yuebin Zhou, Huangqing Xiao, Yang Dong, Weisheng Zhang, Yanan Ye, Yichang Li   +7 more
wiley   +1 more source

A Novel Protection Scheme of AC and DC Line-Touching Based on Coordination of AC and DC Protection

Zhongguo dianli, 2022
The AC/DC hybrid grid is developing rapidly, and the AC-DC line-touching fault has become an unique fault type. By taking different types of AC and DC line touching faults as the research object, and focusing on the whole process from fault isolation to ...
Wei TANG, Su YU, Tao ZHENG, Huanchang YU, Yuxiang NI, Lingkun MENG   +5 more
doaj   +1 more source