Results 41 to 50 of about 13,271,672 (251)

Condensation risk: comparison of steady-state and transient methods [PDF]

, 2006
Accurate assessment of both surface and interstitial condensation risk is important not only to reduce the damaging effect of moisture within the structure of buildings, but also to provide a healthy environment free from mould growth.
Davies, M., Mumovic, D., Oreszczyn, T., Ridley, I.   +3 more
core   +1 more source

Transient Stability Assessment for Current-Constrained and Current-Unconstrained Fault Ride Through in Virtual Oscillator-Controlled Converters [PDF]

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
Unified virtual oscillator controller (uVOC) inherits the rigorous analytical foundation offered by oscillator-based grid-forming (GFM) controllers and enables fast overcurrent limiting and fault ride through (FRT).
M. Awal, I. Husain
semanticscholar   +1 more source

Transient DC bias suppression strategy of dual active bridge based on dual integral sliding mode‐direct power control

IET Power Electronics, 2023
The transient DC bias current will be generated when the input voltage or load of the dual active bridge (DAB) converter suddenly changes, resulting in the excessive peak value of the inductor current and saturation of the transformer core.
Sun Zhaolong, Liu Ziwei, Liu Baolong
doaj   +1 more source

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

Improved limiter for turn-on current transient [PDF]

, 1968
Circuit limits the turn-on current transient to a specified amplitude and provides a low-impedance path between supply voltage and load after a prescribed time interval.
Hallberg, F. C.
core   +1 more source

An automated archival VLA transients survey

, 2011
In this paper we present the results of a survey for radio transients using data obtained from the Very Large Array archive. We have reduced, using a pipeline procedure, 5037 observations of the most common pointings - i.e. the calibrator fields.
B. Scheers, B. W. Stappers, Bannister, Bastian, Becker, Becker, Bell, Bhat, Bower, Bower, Bower, Bower, Bower, C. J. Law, Carilli, Cohen, Condon, Cordes, Croft, Davies, de Vries, Eck, Frail, Frail, Gaensler, Gal-Yam, Greisen, H. Spreeuw, Hodapp, Hopkins, Hyman, Hyman, Högbom, J. C. A. Miller-Jones, J. Masters, J. Swinbank, J. W. T. Hessels, Johnston, Jones, Kettenis, Kida, Kuniyoshi, Lazio, Lenc, Levinson, Lonsdale, M. E. Bell, M. W. Wise, Matsumura, McLaughlin, Niinuma, Niinuma, Ofek, R. A. M. J. Wijers, R. P. Fender, Rau, Rengelink, Stappers, Swinbank, van den Oord, Verheijen, Welch, White, White, Zhao   +64 more
core   +1 more source

The Migrate project: the challenges of operating a transmission grid with only inverter-based generation. A grid-forming control improvement with transient current-limiting control

, 2017
Renewable generation is mainly connected through converters. Even if they provide more and more ancillary services to the grid, these may not be sufficient for extremely high penetrations.
G. Denis, T. Prévost, Marie-Sophie Debry, F. Xavier, X. Guillaud, A. Menze   +5 more
semanticscholar   +1 more source

Transients in “constant-current” generators [PDF]

Behavior Research Methods & Instrumentation, 1970
Some shock-generator circuits may deliver large transient surges at onset and termination. The sources of these surges are derivable from electromagnetic analysis of the circuits employed. Virtual elimination of the surges may be accomplished by a simple rearrangement of the switching portion of the circuit.
Douglas A. Ramsay, Julius Z. Knapp, John C. Zeiss   +2 more
openaire   +1 more source

Pilot Protection of New Energy Transmission Line in Active Distribution Network Based on 5G Communication

Zhongguo dianli
Traditional pilot differential protection will have the problem of reliability reduction or even failure to operate after the access of new energy stations.
Tiecheng LI, Hui FAN, Weiming ZHANG, Xianzhi WANG, Yihong ZHANG, Zhihui DAI   +5 more
doaj   +1 more source

Transient currents in a molecular photo-diode

, 2012
Light-induced charge transmission through a molecular junction (molecular diode) is studied in the framework of a HOMO-LUMO model and in using a kinetic description.
Hänggi, P., Leonov, V. O., May, V., Petrov, E. G.   +3 more
core   +1 more source