Results 11 to 20 of about 213 (180)

Hybrid Protection Scheme Based Optimal Overcurrent Relay Coordination Strategy for RE Integrated Power Distribution Grid

Energies, 2021
A directional overcurrent relay is commonly used to protect the power distribution networks of a distributed system. The selection of the appropriate settings for the relays is an important component of the protection strategies used to isolate the ...
Aayush Shrivastava, Abhishek Sharma, Manjaree Pandit, Vibhu Jately, Brian Azzopardi   +4 more
doaj   +1 more source

A Novel Proposed Algorithm to Enhance the Overcurrent Relays’ Performance in Active Distribution Networks

International Transactions on Electrical Energy Systems, 2022
This research addresses two topics: the first is the optimal coordination of overcurrent relays (OCRs), which has recently become a major challenge to ensure reliability and speed of relays’ operation, and the second is a modified circuit added to the ...
Sally El-Tawab, Hassan S. Mohamed, A. M. Abdel-Aziz   +2 more
doaj   +1 more source

Optimal coordination of directional overcurrent relays using hybrid fractional computing with gravitational search strategy

Energy Reports, 2021
The protection system has a vital role in subsystems of the power network including the generation, transmission and distribution system. This system combines several types of protection relays including directional over current relay, differential relay,
Yasir Muhammad, Muhammad Asif Zahoor Raja, Muhammad Abid Ali Shah, Saeed Ehsan Awan, Farman Ullah, Naveed Ishtiaq Chaudhary, Khalid Mehmood Cheema, Ahmad H. Milyani, Chi-Min Shu   +8 more
doaj   +1 more source

The Hybridization of PSO for the Optimal Coordination of Directional Overcurrent Protection Relays of the IEEE Bus System

Energies, 2023
The hybridization of PSO for the Optimal Coordination of Directional Overcurrent Protection Relays (DOPR) of the IEEE bus system proposes a new method for coordinating directional overcurrent protection relays in power systems.
Yuheng Wang, Kashif Habib, Abdul Wadood, Shahbaz Khan   +3 more
doaj   +1 more source

Investigation of Overcurrent Relay Tripping Time Protection Using PSCAD Software

International Journal of Electrical Engineering and Applied Sciences
This paper studied the modelling of 132/33/11kV overcurrent protection by using PSCAD software. The objective of this project is to compare between IEC 60255 Standard and IEEE C37.112 Standard overcurrent relay response time in the event of fault ...
Mohd Hendra Hairi, Aina’a Syahirah Mansor, Ahmad Sadhiqin Mohd Isira, M. N. Kamarudin   +3 more
doaj   +1 more source

Application of a Continuous Particle Swarm Optimization (CPSO) for the Optimal Coordination of Overcurrent Relays Considering a Penalty Method

Energies, 2018
In an electrical power system, the coordination of the overcurrent relays plays an important role in protecting the electrical system by providing primary as well as backup protection. To reduce power outages, the coordination between these relays should
Abdul Wadood, Chang-Hwan Kim, Tahir Khurshiad, Saeid Gholami Farkoush, Sang-Bong Rhee   +4 more
doaj   +1 more source

An Optimized Protection Coordination Scheme for the Optimal Coordination of Overcurrent Relays Using a Nature-Inspired Root Tree Algorithm

Applied Sciences, 2018
In electrical engineering problems, bio- and nature-inspired optimization techniques are valuable ways to minimize or maximize an objective function. We use the root tree algorithm (RTO), inspired by the random movement of roots, to search for the global
Abdul Wadood, Saeid Gholami Farkoush, Tahir Khurshaid, Chang-Hwan Kim, Jiangtao Yu, Zong Woo Geem, Sang-Bong Rhee   +6 more
doaj   +1 more source

Flutter Framework Implementation for Over Current Relay and Ground Fault Relay Setting Applications in 20 kV Distribution Systems

Jurnal Pendidikan Multimedia
In the distribution system, there are several faults such as blackouts due to errors in the coordination of the protection relay. To minimize excessive damage to the electrical system, components such as over current relays (OCR) are needed to overcome ...
Nike Sartika, Muhammad Akmal Maulidan, Edi Mulyana   +2 more
doaj   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Performance Evaluation of Overcurrent Relay Coordination on 20-kV Busbar and Feeders

Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls
The coordination of Overcurrent Relays (OCR) in power systems is crucial to ensure selectivity and reliability. Mis-coordination between OCRs on the 20-kV busbar and feeders can significantly reduce system performance, often due to improper determination
Ageng Rizkianto, Agung Trihasto, Deria Pravitasari, Hery Teguh Setiawan   +3 more
doaj   +1 more source