Results 11 to 20 of about 563,471 (308)

Modelling of Data Communication over Medium-Voltage Power Distribution Lines

open access: yesCommunications, 2016
The paper is dedicated to different topologies of medium-voltage power distribution lines with respect to their properties influencing the transmission of communication signals.
Jaromir Hrad, Jiri Vodrazka
doaj   +2 more sources

A Smart Online Over-Voltage Monitoring and Identification System

open access: yesEnergies, 2011
This paper proposes a complete and effective smart over-voltage monitoring and identification system. In recent years, smart grids are of the greatest interest in power system research.
Tao Yuan   +4 more
doaj   +2 more sources

A strategy of neutral-point potential balance control and common-mode voltage suppressio

open access: yesGong-kuang zidonghua, 2014
For problems that there are common-mode voltage, over voltage and neutral-point potential imbalance simultaneously in power supply of inverter to motor through long cable, generation mechanisms of common-mode voltage and over voltage were analyzed as ...
WANG Kezhi   +5 more
doaj   +1 more source

Research on over-voltage characteristics of ultra high-voltage direct current transmission system

open access: yesEnergy Reports, 2022
Load dumping overvoltage has a significant effect on insulation coordination of direct current (DC) transmission system. Based on the PSCAD/EMTDC electromagnetic transient simulation programs, this paper has built the electromagnetic transient ...
Yingjin Li   +6 more
doaj   +1 more source

Transient Over Voltage in a High Voltage Transformer and Countermeasures to Prevent Over Voltage under Applied Voltage at Black Start

open access: yesIEEJ Transactions on Power and Energy, 2005
This paper describes how to smoothly restore the power system from blackout using a hydro power plant. Various kinds of abnormal phenomena could occur during the period of blackouts and restoration. Taking various possible abnormal phenomena into account, the authors first performed an analytical study of power system restoration processes using the ...
Furukawa, Koichiro   +8 more
openaire   +2 more sources

Over Voltage and Under Voltage Protection System Using IoT

open access: yesJournal of Physics: Conference Series, 2022
Abstract Sudden fluctuation in voltage may cause a serious problem in industries and home appliances. These fluctuations may significantly impact the power quality as well as the reliability of other voltage controlling devices. However, this paper discussed about designing for under voltage and over voltage protection to protect and ...
Mohd Anuar Bin Mohamed Ayub   +5 more
openaire   +1 more source

Research for Forming up the Controlling Diagram Utilizing the Connection of a LV Resistor on Voltage Transformer’s Open-Triagle Coil to Reduce over Voltage Caused by Earth Fault in 6 kV Grid of QuangNinh Underground Mines

open access: yesE3S Web of Conferences, 2018
Single phase earth-fault in MV grids usually causes overvoltage that harm to human being and electric equipment. If the magnitude of over voltage is so great, many grids’ eco-technical parameters will be affected.
Viet Bun Ho, Xuan Thanh Le
doaj   +1 more source

Over-voltage mitigation within distribution networks with a high renewable distributed generation penetration

open access: yes, 2014
The rapid growth of grid-connected distributed generation has increased the likelihood of over-voltage occurrences in distribution networks. In recent times, much research has taken place in order to develop a control strategy to mitigate the voltage ...
Joel Kennedy   +5 more
core   +2 more sources

Design of protection module of intrinsic safety power supply based on LT4356

open access: yesGong-kuang zidonghua, 2014
In view of problems of simple protection function, low conversion efficiency, poor anti-interference ability and low intrinsic safety current existed in current protection module of intrinsic safety power supply, a protection module of intrinsic safety ...
XIE Guojun   +3 more
doaj   +1 more source

Voltage-Mode Ferroelectric Synapse for Neuromorphic Computing

open access: yes, 2023
Ferroelectric materials with a modulable polarization extent hold promise for exploring voltage-driven neuromorphic hardware, in which direct current flow can be minimized.
Guo Tian   +21 more
core   +1 more source

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