Results 151 to 160 of about 68,357 (185)

Switching transient overvoltage study simulation comparison using PSCAD/EMTDC and EMTP-RV

2013 Proceedings of IEEE Southeastcon, 2012
Switching transients are an important factor on the equipment selection, protection and tower air clearances. Lightning and switching are two primary causes of transient overvoltage in power systems. This paper focuses on a comparative study of the modeling and simulation of a switching transient overvoltage study using two widely used simulation tools:
null Shanshan Yang, Gregory A. Franklin
openaire   +1 more source

Power Systems Transients and Insulation Coordination with EMTP-RV

2015
General introduction to Insulation Coordination and to IEC 60071 ; Type of Overvoltage and methodology ; How to model power systems equipment for overvoltage studies ; Power Frequency Transient Study Case ; Slow Front Transient Study Case ; Fast Front Transient Study ...
Uglešić, Ivo, Filipović-Grčić, Božidar   +1 more
openaire  

Computation of power system transients: Modeling portability using EMTP-RV DLL

2011 IEEE Power and Energy Society General Meeting, 2011
This panel paper presents research activities related to modeling portability between electromagnetic transient (EMT) simulation programs using DLL programming. Although modern EMT computer programs are based on sophisticated graphical user interfaces, each program has its own modeling interface and model development methods.
openaire   +1 more source

STATCOM model in EMTP RV using hysteresis current controlled voltage source converter (VSC)

Canadian Conference on Electrical and Computer Engineering, 2005., 2006
In this paper, a static compensator (STATCOM) model in EMTP RV of a voltage source converter (VSC) is presented. The STATCOM is connected to the end of a transmission line. The DC/AC conversion is obtained by using pulse width modulation (PWM) based on a current hysteresis controller.
null Yongan Deng, V.K. Sood, L. Lopes
openaire   +1 more source

Optimization of Hydraulic Digital Governor parameters using EMTP-RV

International journal on engineering applications, 2013
Application of hydraulic digital governor is an important step in achieving a fully integrated system for stability studies. In this paper, EMTP-RV model of hydraulic digital governor is used in order to perform optimization of hydraulic digital governor parameters. The simulated transient response characteristics of a digital governor, obtained by the
Lucić, Rino, Dabro, Mate, Jurić-Grgić, Ivica   +2 more
openaire   +2 more sources

Modelling of 25 kV electric railway system in EMTP-RV

2016
Modelling of the electric railway system including locomotives in EMTP-RV software. Influence of the electric railway system on power quality in the transmission system (simulations and power quality measurements). Modelling of reactive power compensation for electric railway systems and analysis of switching transients.
Filipović-Grčić, Božidar, Uglešić, Ivo   +1 more
openaire  

Current Transformer modeling in EMTP-RV for transients studies

2012
During the last decades the demands on current transformers for protection has increased rapidly. Overcurrents in power networks and also time constants for the short-circuit DC offset are increasing. Very short breaker tripping times are stipulated and achieved by fast operating protective relay systems.
openaire  

Basis for the development of new toolbox for short-circuit studies in EMTP-RV

2018
EMTP-RV software has been used for a few decades mostly for slow and fast transients. The most typical studies were indeed lightning surge and transformer energization. New modules have been developed quite recently to enlarge the scope of studies that can be easily done with EMTP-RV (stability, protections, lightning induced overvoltage, parametric ...
Pavić, Ivica, Uglešić, Ivo, Hrgović, Ivana, Filipović-Grčić, Božidar   +3 more
openaire   +1 more source

ANALIZA PRENAPONSKE ZAŠTITE VISOKONAPONSKOG TRANSFORMATORA KORIŠTENJEM PROGRAMSKOG PAKETA EMTP-RV

2021
Zadatak diplomskog rada bio je modelirati visokonaponsku mrežu, te provesti detaljnu analizu prenaponske zaštite energetskog transformatora uslijed udara munje pomoću programskog paketa EMTP-RV. Prilikom modeliranja mreže ispoštovana su načela i zahtjevi struke. Udari munje koji su korišteni za simulaciju udara munje su standardizirane vrijednosti.
openaire  

A Method of a Lightning Surge Analysis Recommended in Japan Using EMTP

IEEE Transactions on Power Delivery, 2005
Akihiro Ametani, Takeshi Kawamura
exaly