Results 11 to 20 of about 20,805,963 (290)

Effects of parasitic capacitance on switching transients and thermal performance in a single-phase SiC power MOSFET inverter [PDF]

open access: yesScientific Reports
This study aims to investigate the influence of parasitic capacitances within half-bridge SiC power metal oxide semiconductor field effect transistor (MOSFET) modules, including input capacitance (Ciss), output capacitance (Coss), and reverse transfer ...
Hsien-Chie Cheng   +5 more
doaj   +2 more sources

Synchronous stability analysis and enhancement method for grid connected inverters in weak grids [PDF]

open access: yesScientific Reports
Renewable energy resources (RESs) are typically integrated into the utility grid through grid-connected inverters (GCIs). Such a system may lose synchronization during grid faults, especially under weak grid conditions, resulting in instability problems ...
Lin Zhu   +5 more
doaj   +2 more sources

Methodologies for Power Protection Relay Testing [Elektronisk resurs] : From Conventional to Real-Time Hardware-in-the-Loop (HIL) Simulation Approaches

open access: yes, 2013
Performance testing of the protection relays ensures that a particular protection scheme will operate reliably and fast enough to disconnect a faulty zone from the rest of the network, thus mitigating the effect of fault on the power system.
Vanfretti, Luigi,   +1 more
core   +9 more sources

Instantaneous Specific Protection Method Against Faulty Synchronizations of Synchronous Machines

open access: yesIEEE Access, 2021
The probability of faulty synchronization of a generator is very small, but not impossible. The main cause of a faulty synchronization is due to wiring errors caused during maintenance or commissioning when voltage transformer and synchronizing equipment
Pengfei Tian   +3 more
doaj   +1 more source

Incorporating hydraulic transients into short-term operation evaluation of an integrated electricity–water system

open access: yesEnergy Reports, 2022
Hydraulic transients occur frequently due to flow control operations in a hydraulic system, which may lead to adverse impacts on the system equipment. However, the existing researches on the power–water flow problem of the integrated electricity–water ...
Mingyi Sun, Xia Zhao, Luo Wang
doaj   +1 more source

A Low Cost Real-Time Transient Recorder for High Voltage Systems

open access: yesSensors, 2023
Large-scale incorporation of new energy generation units based on renewable sources, such as wind and photovoltaic power, drastically alters the structure of the power system.
Selma Grebović   +5 more
doaj   +1 more source

Thermodynamic Analysis of Methylcyclohexane Dehydrogenation and Solar Energy Storage via Solar-Driven Hydrogen Permeation Membrane Reactor

open access: yesMembranes, 2020
A novel methylcyclohexane (MCH) dehydrogenation system driven by solar energy with a hydrogen permeation membrane (HPM) reactor is proposed in this study.
Hongsheng Wang   +4 more
doaj   +1 more source

Modeling and simulation of transients in electric power systems using hybrid system theory [PDF]

open access: yesITM Web of Conferences, 2019
Transients in electric power systems are of great interest to power engineers when designing a new or maintaining an existing system. The paper deals with using hybrid system theory for modeling and simulation of an electric power system with controllers.
Shornikov Yury, Popov Evgeny
doaj   +1 more source

The use of real time digital simulation and hardware in the loop to de-risk novel control algorithms [PDF]

open access: yes, 2011
Low power demonstrators are commonly used to validate novel control algorithms. However, the response of the demonstrator to network transients and faults is often unexplored. The importance of this work has, in the past, justified facilities such as the
Watson, J.   +17 more
core   +6 more sources

Electromagnetic Transients in Multi-Voltage Transmission Lines during Non-Simultaneous Faults

open access: yesEnergies, 2022
It is vitally important that a transmission network provides a continuity of electricity to end users and that the transmission system operator prioritizes its safety and reliability.
Daria Zychma, Paweł Sowa
doaj   +1 more source

Home - About - Disclaimer - Privacy