Results 141 to 150 of about 224 (167)

Dual-Setting Directional Overcurrent Relays for Protecting Automated Distribution Networks

IEEE Transactions on Industrial Informatics, 2019
This paper elaborates a new protection scheme based on dual-setting DOCRs for automated distribution networks. In this course, the reduction in relays operation time saturates as the number of these relays increases. Thus, optimal deployment of dual-setting DOCRs should be specified in an efficient manner.
Amin Yazdaninejadi, Sajjad Golshannavaz, Daryoush Nazarpour, Saeed Teimourzadeh, Farrokh Aminifar   +4 more
openaire   +1 more source

Modified water cycle algorithm for optimal direction overcurrent relays coordination

Applied Soft Computing, 2019
Abstract The optimization model of Directional Over Current Relays (DOCRs) coordination is considered non-linear optimization problem with a large number of operating constraints. This paper proposes a modified version for Water Cycle Algorithm (WCA), referred to as MWCA to effectively solve the optimal coordination problem of DOCRs. The main goal is
Ahmed Korashy, Salah Kamel, Abdel-Raheem Youssef, Francisco Jurado 0002   +3 more
openaire   +1 more source

Improved group search optimization algorithm for coordination of directional overcurrent relays

Swarm and Evolutionary Computation, 2015
Abstract In this study, coordination of directional overcurrent relays in power systems is formulated as an optimization problem. The objective is to find out an optimum setting of relays in order to minimize the operating time of relays for faults at their primary protection zone, while coordinating the relays properly. The coordination is performed
Manijeh Alipour, Saeed Teimourzadeh, Heresh Seyedi   +2 more
openaire   +1 more source

Modeling Directional Overcurrent Relays using Modelica

2023 IEEE 3rd International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and Computer Engineering (MI-STA), 2023
Montaser. A. Qasem, Ali Dhaw Aljadi, Ezzedin Muftah Enbiah   +2 more
openaire   +1 more source

Coordination of Directional Overcurrent Relays Using Seeker Algorithm

IEEE Transactions on Power Delivery, 2012
Coordination of directional overcurrent relays in a multiloop subtransmission or distribution network is formulated as an optimization problem. In this paper, the coordination of directional overcurrent relays is formulated as a mixed-integer nonlinear programming problem and is then solved by a new seeker optimization technique.
openaire   +1 more source

Directional overcurrent relay coordination optimization

2023
Meng Yen Shih, Arturo Conde, Jorge Chan González, Francisco Lezama Zárraga   +3 more
openaire   +1 more source

Adaptive Protection Coordination Scheme Using Numerical Directional Overcurrent Relays

IEEE Transactions on Industrial Informatics, 2019
Dynamically changing distribution system operating conditions compromises the coordination of the existing protection schemes. This paper proposes an online adaptive protection coordination scheme by utilizing numerical directional overcurrent relays (DOCRs) and commercial A Mathematical Programming Language (AMPL) based Interior Point OPTimization ...
openaire   +1 more source

Directional overcurrent relays

2021
openaire   +1 more source

An Optimized Adaptive Protection Scheme for Numerical and Directional Overcurrent Relay Coordination Using Harris Hawk Optimization

Energies, 2021
Muhammad Irfan, Sang-Bong Rhee, Tahir Khurshaid   +2 more
exaly  

Modelling a Neutral and Phase Overcurrent Directional Relay

VI Simpósio Brasileiro de Sistemas Elétricos, 2015
null Mônica Maria Leal, null Flavio Bezerra Costa, null João Tiago Loureiro Sousa Campos   +2 more
openaire   +1 more source