Results 231 to 240 of about 6,686,710 (281)

Study on wide-area traveling wave fault line selection and fault location algorithm

open access: yesInternational Transactions on Electrical Energy Systems, 2018
Yixing Cheng
exaly   +2 more sources

Selection of suitable features for fault classification in transmission line

2015 IEEE International Conference on Control System, Computing and Engineering (ICCSCE), 2015
Power system protective relaying is an important feature for efficient and reliable power flow operation. The traditional fault classification scheme using the steady state component is easily affected by environment factors. Then, it is important to provide power protection scheme that offers a better classification performance based on fault ...
Mat Nizam Mahmud   +3 more
openaire   +2 more sources

Fault-line selection and fault-type recognition in DC systems based on graph theory [PDF]

open access: yesProtection and Control of Modern Power Systems, 2018
When a fault occurs in a DC system, the fault current rises rapidly with no zero-crossing point which makes fault-line selection and fault-type identification difficult. In this paper, an online detection and protection method based on graph theory, namely the “double D method”, is proposed for fault-line selection and fault-type identification in DC ...
Yan Xu, Jingyan Liu, Yuan Fu
exaly   +2 more sources

A Fault Line Selection Method by Resistive Current for Single-Phase Earth Fault in Network

Proceedings of the 2nd International Conference on Information Technologies and Electrical Engineering, 2019
Aiming at the question of selecting fault line when single-phase grounded in neutral "point" ineffective ground system, according to resistive current, a criterion of line selection is proposed, and its feasibility is analyzed in depth. When the system detects zero-sequence voltage, the medium resistance is put into the neutral point of the system, and
Ning Wang, Jian Liu, Miaomiao Song
openaire   +1 more source

Fault Line Selection with Parallel Supply Lines in Mine Power Systems

Advanced Materials Research, 2012
In mine power systems, false operation and failure operation of relays in parallel supply lines often take place when single phase grounding fault occurs. A novel method based on phase-to-phase current difference is proposed as line selection criterion in this paper.
Chong Lin Wang, Jian Xin
openaire   +1 more source

Fault Line Selection Based on the Frequency Characteristics of Feeders

2020 IEEE 3rd Student Conference on Electrical Machines and Systems (SCEMS), 2020
In resonant grounding system, the arc suppression coil could improve power supply reliability by compensating for capacitive fault current, which also makes fault line selection more difficult. This paper presents a fault line selection scheme which produces the line selection signal without changing the existing equipment.
Zhuoqun Wang   +3 more
openaire   +1 more source

New approach to select the fault line based on transient energy features of fault phase

2021 IEEE International Conference on Computer Science, Electronic Information Engineering and Intelligent Control Technology (CEI), 2021
A new approach for fault line detection using Wavelet energy feature of fault-phase transient current is proposed. This novel method utilizes the phase selection function of insulation monitoring system and the differences of transient current between fault line and non-fault line.
Yu Xiao   +10 more
openaire   +1 more source

Home - About - Disclaimer - Privacy