Results 1 to 10 of about 262,138 (151)

Unequal Power Dividers Using Uniform Impedance Transmission Lines with Stubs [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2021
This study proposes an impedance control method in transmission lines using open- or short-circuit stubs for unequal power dividers. The proposed method is based on the conversion of a two-port to a three-port transmission line, which is equivalent to ...
Young-Chul Yoon, Young Kim
doaj   +1 more source

Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement

open access: yesHeliyon, 2021
The present Nigerian transmission network is faced with the difficulty of evacuating and dispatching reliable and quality electricity supply and simultaneously maintaining an operational standard of security to prevent any collapses.
Ademola Abdulkareem   +3 more
doaj   +1 more source

Development of the method of determining the location of a short circuit in transmission lines

open access: yesJournal of Physics: Conference Series, 2021
Abstract One of the serious problems of the reliable functioning of energy systems is the disruption of the performance of overhead and cable transmission power lines caused by various reasons. Most of the power outages occur in distribution networks.
Konstantin Suslov   +3 more
openaire   +1 more source

Stability Improvement of The Iraqi Super Grid (400kV) using High Voltage Direct Current (HVDC) Transmission

open access: yesJournal of Engineering, 2021
This research analyzes the level of the short circuit effect of the Iraqi super network and decides the suitable location for the High Voltage Direct Current (HVDC) connections in order to obtain the best short circuit reduction of the total currents of ...
Zainab Nadhim Abbas   +1 more
doaj   +1 more source

Regional Power Grid Planning Method Considering Hydropower Transmission and Load Center Function Properties

open access: yes发电技术, 2021
With the rapid development of China's power industry, the power grid structure tends to be complicated. In order to further optimize the grid structure, through the analysis of the actual grid, this paper proposed that the power grid had two functional ...
Tongyan ZHANG   +3 more
doaj   +1 more source

Transmission line short circuit analysis by impedance matrix method

open access: yesInternational Journal of Electrical and Computer Engineering (IJECE), 2020
Fault analysis is the process of determining the magnitude of fault voltage and current during the occurrence of different types of fault in electrical power system. Transmission line fault analysis is usually done for both symmetrical and unsymmetrical faults.
Boniface Onyemaechi Anyaka   +1 more
openaire   +2 more sources

Transient fault identification method for bipolar short‐circuit fault on MMC‐HVDC overhead lines based on hybrid HVDC breaker

open access: yesHigh Voltage, 2021
A bipolar short‐circuit transient fault identification method for overhead transmission lines in modular multi‐level converter‐based high voltage direct current (MMC‐HVDC) grid based on the hybrid HVDC breaker is proposed.
Botong Li   +5 more
doaj   +1 more source

Penetration of DWT & ANFIS to Power Transmission Disturbances

open access: yesInternational Journal of Electrical, Energy and Power System Engineering, 2023
This study proposes a hybrid method to classify and estimate the location of short circuit disturbance on power transmission lines. The hybrid method uses Discrete Wavelet Transform (DWT) and Adaptive Neuro-Fuzzy Inference System (ANFIS).
Sandy Ahmad   +4 more
doaj   +1 more source

Operational determination of the point of a short circuit in power lines

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2023
RELEVANCE. An urgent task is to improve the reliability and quality of power supply. Very often, failures in operation are caused by damage to overhead and cable lines.
K. V. Suslov   +3 more
doaj   +1 more source

A short-circuit current calculation method considering phase characteristics of wind power and photovoltaic and components between new energy units and grid

open access: yes电力工程技术, 2023
A large number of new energy units represented by wind power and photovoltaics are connected to the grid, making accurate calculation and verification of short-circuit current difficult. Given the phase mapping and the influence of electrical components (
QIAO Li   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy