Results 11 to 20 of about 1,101,419 (336)

Application of Artificial Neural Network-Based Tool for Short Circuit Currents Estimation in Power Systems With High Penetration of Power Electronics-Based Renewables

IEEE Access, 2023
The increasing integration of Power Electronics (PE)-based renewable energy sources into the electric power system has significantly affected the traditional levels and characteristics of fault currents compared to the ones observed in power systems ...
Rafat Aljarrah, Murad Al-Omary, Dua'a Alshabi, Qusay Salem, Sahban Alnaser, Dragan Cetenovic, Mazaher Karimi   +6 more
doaj   +4 more sources

Transmission network expansion planning with embedded constraints of short circuit currents and N-1 security

Journal of Modern Power Systems and Clean Energy, 2015
An approach of transmission network expansion planning with embedded constraints of short circuit currents and N-1 security is proposed in this paper. The problem brought on by the strong nonlinearity property of short circuit currents is solved with a ...
Jianxiao Wang, Haiwang Zhong, Qing Xia, Chongqing Kang   +3 more
doaj   +4 more sources

The Analysis of the Symmetrical Short-Circuit Currents in Backup Power Supply Systems with Low-Power Synchronous Generators

Energies, 2020
This paper presents an analysis of the short-circuit currents of a synchronous generator with a rated power of 16 kVA. For this purpose, the authors carried out measurements of real short-circuit currents during laboratory tests.
Dominik Mamcarz, Paweł Albrechtowicz, Natalia Radwan-Pragłowska, Bartosz Rozegnał   +3 more
doaj   +2 more sources

A Novel Fault Location Method for a Cross-Bonded HV Cable System Based on Sheath Current Monitoring [PDF]

Sensors, 2018
In order to improve the practice in the operation and maintenance of high voltage (HV) cables, this paper proposes a fault location method based on the monitoring of cable sheath currents for use in cross-bonded HV cable systems.
Mingzhen Li, Chengke Zhou, Wenjun Zhou, Chunlin Wang, Leiming Yao, Mengting Su, Xiaojun Huang   +6 more
doaj   +3 more sources

Analysis of the Operation of Cascade Current Transformers for Measurements of Short-Circuit Currents with a Non-Periodic Component with a Large Time Constant of Its Decay

Energies, 2022
Simulations of emergency states and tests of resistance of electrical devices to emergencies are performed in specialized high-power laboratories, the so-called short-circuit laboratories. For most electrical power devices, such measurements are required
Elzbieta Lesniewska, Jan Olak
doaj   +1 more source

Effect of Distributed Photovoltaic Generation on Short-Circuit Currents and Fault Detection in Distribution Networks: A Practical Case Study

Applied Sciences, 2021
The increase in the installation of renewable energy sources in electrical systems has changed the power distribution networks, and a new scenario regarding protection devices has arisen.
Daniel Alcala-Gonzalez, Eva García del Toro, M. I. Más-López, S. Pindado   +3 more
semanticscholar   +1 more source

Development of Bus and Line Control Method for Short-Circuit Current Reduction Using Genetic Programming

Energies, 2022
In this study, genetic programming (GP) is used for optimizing bus and line separation methods to reduce the short-circuit current. Expanding power systems led to intensive electric power and more transmission lines, reducing the grid impedance.
Dabin Son, Sangwook Han
doaj   +1 more source

Methods of Current Limitation in Low Voltage (up to 1 kV) Electric Networks

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2021
The article discusses and systematizes the causes of high values of short-circuit currents in electrical networks up to 1 kV and indicates their negative consequences.
A. Yu. Kapustsinski, S. V. Kanstantsinava   +1 more
doaj   +1 more source

Short-Circuit Fault Analysis of the Sen Transformer Using Phase Coordinate Model

Energies, 2021
The Sen Transformer (ST) provides an economical solution for power flow control and voltage regulation. However, fault analysis and evaluation of the performance of the transmission protection system in the presence of a ST have not been investigated ...
Liang Bu, Song Han, Jinling Feng
doaj   +1 more source

Experimental study on short-circuit current characteristics of a photovoltaic system with low voltage ride through capability under a symmetrical fault

Energy Reports, 2022
Large number of photovoltaic (PV) power plants connected to a power grid can bring significant impacts to fault currents and the operation of protection systems.
Shuai Yuan, Bao-Feng Yang, Jian-Ying Zhang   +2 more
doaj   +1 more source