Results 71 to 80 of about 8,508 (172)

Medium-Voltage AC Static Switch Solution to Feed Neutral Section in a High-Speed Railway System

open access: yesEnergies, 2018
A high-speed train (HST) is a single-phase load supplied by a three-phase AC grid. The HST produces unbalanced three-line currents affecting the power quality of the grid.
Jose Maria Canales   +4 more
doaj   +1 more source

Simulink Analysis and Mathematical Modeling of Parameters Variation for Thyristor Based Speed Controller of Single Phase Induction Motor [PDF]

open access: yes, 2021
The thyristor is a power electronics device that is widely used in various electrical appliances due to its lower on-conduction losses, easyavailability, lower switching loss, greater efficiency and cost-benefit.
Mugheri, Noor Hussain   +5 more
core  

Investigation of Transient Thermal Behavior in Thyristors Under Pulse Conditions

open access: yesMicromachines
Under pulsed discharge conditions, high-power thyristors face challenges such as an excessively high current rise rate (di/dt) and the issue of triggering front expansion, which are difficult to accurately simulate.
Guanxiang Zhang   +5 more
doaj   +1 more source

Series Current Flow Controllers for DC Grids

open access: yesIEEE Access, 2019
Large-scale grid integration of renewables and cross-country border energy exchange may be facilitated by multi-terminal high-voltage direct-current (MTDC) grids.
Senthooran Balasubramaniam   +2 more
doaj   +1 more source

Optically-triggered GaAs thyristor switches: Integrated structures for environmental hardening [PDF]

open access: yes, 1990
Optically-triggered thyristor switches often operate in adverse environments, such as high temperature and high dose-rate transient radiation, which can result in lowered operating voltage and premature triggering.
Zipperian, T. E.   +5 more
core  

Development of 6-inch High di/dt Thyristor for Pulse Switch

open access: yesKongzhi Yu Xinxi Jishu, 2014
For the high requirements of the thyristor for pulse switch on di/dt tolerance, the turn-on process and di/dt failure mechanism of thyristor are described.
WANG Zhengying   +4 more
doaj  

A Certain Thyristor Bridge with Capability of Forced Communication [PDF]

open access: yes
The series-diode-system thyristor bridge is able to act as a controllable rectifier and inverter over the whole control angle from positive to negative, and is of practical use.
Kazuno, Hiroshi   +5 more
core   +1 more source

Spectral Analysis of Power Quality of Asynchronous Thyristor Loading Device

open access: yes, 2010
The paper presents an investigation aimed at exploring the power quality of asynchronous thyristor loading device. In the process of work the simulation model of asynchronous thyristor cascade was created.
Zakharenko, V.   +2 more
core   +2 more sources

Technology Research on Rail Potential Limit of Urban Rail Transit

open access: yes机车电传动, 2018
The OVPD device is an important component of the protective equipment in the power supply system of urban rail transit. Basic principle of rail potential limiting protection for urban rail transit was analyzed, and a new type of rail potential limiter ...
CHEN Chaolu   +4 more
doaj  

The optimal allocation of thyristor-controlled series compensators for enhancement HVAC transmission lines Iraqi super grid by using seeker optimization algorithm

open access: yesOpen Engineering
Meta-heuristic approaches evaluate the optimum size and position of flexible alternative current transmission systems power systems. The seeker optimization algorithm (SOA) technique was used to solve power engineering optimization problems with better ...
Jawad Ihsan Mousa   +4 more
doaj   +1 more source

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