Results 71 to 80 of about 2,500 (192)

UAV‐Assisted Fault Location Coordinated Strategy for Resilient Distribution Systems

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
Disasters may also damage the communication infrastructure, resulting in untimely reporting of fault information detected by remote fault indicators (RFIs). In this paper, we propose a UAV‐assisted coordination strategy for status collection and fault location in distribution systems.
Haochen Zhang, Chen Chen, Jian Zhong, Zhaohong Bie, Guowei Liu   +4 more
wiley   +1 more source

An Improved Communication-Free Dual Characteristic Over Current-Based Protection Scheme for AC Microgrids

International Transactions on Electrical Energy Systems
The entry of distributed generation causes the network to become complicated, and as a result, the protection coordination between the network equipment is lost.
Hossein Mohammadi Panah, Behrooz Zaker, Haidar Samet   +2 more
doaj   +1 more source

Finding Optimal Zone II Settings for Distance Relays in Coordination With Directional Overcurrent Relays Using QCQP Algorithm

IEEE Access
This paper introduces a deterministic method to address coordination challenges between distance relays (DS) and directional overcurrent relays (DOR) by employing quadratic programming with quadratic constraints (QCQP).
N. Praneeth, S. T. P. Srinivas, Alivelu M. Parimi, J. Ankamma Rao, Getie Tesfaye Zelie   +4 more
doaj   +1 more source

A Novel Distance Protection Scheme Capable of Fault Location Based on Coordination of Control and Protection

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper proposes a distance protection scheme capable of fault location based on the coordination of control and protection. By utilizing the two fault states provided by IBR control switching, accurate fault location calculation is achieved, unaffected by fault resistance. Additionally, through time‐sequenced coordination of control and protection,
Qian Xu, Tong Wang, Zengping Wang, Congbo Wang, Guosheng Yang   +4 more
wiley   +1 more source

Adaptive harmonic-based protection coordination for inverter-dominated isolated microgrids considering N-1 contingency

International Journal of Electrical Power & Energy Systems
Protection coordination is typically approached considering the main network configuration. Nevertheless, contingencies such as generator or line failures may disrupt power grids.
Talal Elemamali Sati, Maher A. Azzouz, Mostafa F. Shaaban   +2 more
doaj   +1 more source

Integrated Curve and Setting Optimization for DOCRs in Microgrid Environments with a BRKGA-MILP Matheuristic

Energies
Guaranteeing the effective coordination of directional overcurrent relays (DOCRs) within microgrids (MGs) is a complex nonlinear problem due to bidirectional power flows, varying fault current levels, and the need for adaptive operation across multiple ...
León F. Serna-Montoya, Sergio D. Saldarriaga-Zuluaga, Jesús M. López-Lezama, Nicolás Muñoz-Galeano, Juan G. Villegas   +4 more
doaj   +1 more source

Rekonfigurasi Relai Proteksi setelah Penambahan Pembangkit Tersebar pada Jaringan Distribusi

Jurnal Nasional Teknik Elektro, 2017
Installation of distributed generation (DG) on a distribution network can change the direction of electrical current during normal and faulted condition. This change can cause failures to operate of the existing relay protection.
Adrianti Adrianti, Nurul Mukhlisiah
doaj   +1 more source

Application of Evolutionary Algorithm for Optimal Directional Overcurrent Relay Coordination

Journal of Computer and Communications, 2014
In this paper, two Evolutionary Algorithms (EAs) i.e., an improved Genetic Algorithms (GAs) and Population Based Incremental Learning (PBIL) algorithm are applied for optimal coordination of directional overcurrent relays in an interconnected power system network.
N. M. Stenane, K. A. Folly
openaire   +2 more sources

An Improved Optimal Solution for the Directional Overcurrent Relays Coordination Using Hybridized Whale Optimization Algorithm in Complex Power Systems

IEEE Access, 2019
The directional overcurrent relays (DOCRs) coordination is a useful tool in guaranteeing the safe protection of the power system by the proper coordination of primary and backup protection systems. The optimization model of this problem is non-linear and
Tahir Khurshaid, Abdul Wadood, Saeid Gholami Farkoush, Jiangtao Yu, Chang-Hwan Kim, Sang-Bong Rhee   +5 more
doaj   +1 more source

Comprehensive Performance Analysis of Saplings Growing Up Algorithm Under Probability Distribution-Based Initialization Strategies for Overcurrent Relay Coordination

IEEE Access
Optimization algorithms are widely used to solve nonlinear engineering problems that are characterized by complex and constrained search spaces. In this study, the Overcurrent Relay Coordination (ORC) problem and a microgrid directional overcurrent relay
Ozge Ozguner, Ebubekir Seyyarer
doaj   +1 more source