Analysis of Selected Power Quality Indicators at Non-Measured Distribution Network Points Based on Measurements at Other Points

Published by Andrzej FIRLIT, Bogusław ŚWIĄTEK, Zbigniew HANZELKA, Krzysztof PIĄTEK, Mateusz DUTKA, Tomasz SIOSTRZONEK, AGH University of Science and Technology, Krakow, Poland Abstract. The article presents a method enabling estimation of the selected power quality indicators at a given point of a power network, on the basis of the power quality indicators recorded at theContinue reading “Analysis of Selected Power Quality Indicators at Non-Measured Distribution Network Points Based on Measurements at Other Points”

Large Scale Proactive Power-Quality Monitoring: An Example from Australia

Published by Sean Elphick, Member, IEEE, Phil Ciufo, Senior Member, IEEE, Gerrard Drury, Vic Smith, Sarath Perera, Senior Member, IEEE, Vic Gosbell, Senior Member, IEEE, University of Wollongong. Abstract – In Australia and many other countries, distribution Network Service Providers (DNSPs) have an obligation to their customers to provide electrical power that is reliable andContinue reading “Large Scale Proactive Power-Quality Monitoring: An Example from Australia”

Power Quality in the Portuguese Distribution Network

Published by António LEBRE, Fernando BASTIÃO Nuno MELO, Luísa JORGE Pedro VELOSO, António BLANCO, EDP Distribuição – Portugal. Emails: antoniojose.lebrecardoso@edp.pt, nuno.melo@edp.pt, pedro.veloso@edp.pt, fernando.bastiao@edp.pt, luisa.jorge@edp.pt, antonio.blanco@edp.pt ABSTRACT There is an increase in the quantity and in the variety of challenges faced by distribution network operators, concerning to Power Quality (PQ). EDP Distribuição, in Portugal, has beenContinue reading “Power Quality in the Portuguese Distribution Network”

Voltage Fluctuations in Networks with Distributed Power Sources

Published by Maciej MRÓZ1, Zbigniew HANZELKA, Krzysztof CHMIELOWIEC2, TAURON Dystrybucja S.A.(1), AGH – University of Science and Technology (2) Abstract. One of the electromagnetic disturbances generated by distributed power sources, e.g. wind turbines, are voltage fluctuations. An imprecise prediction of the disturbance level may be the reason for erroneous decisions made at the stage ofContinue reading “Voltage Fluctuations in Networks with Distributed Power Sources”

Prediction of Electricity Production in Island Operation under the different Wind Generation Modes

Published by Dušan MEDVEĎ1, Zsolt ČONKA1 Marek PAVLIK1, Ján ZBOJOVSKY1,Michal KOLCUN1,Michal IVANČÁK1, Technical University of Košice, Department of Electric Power Engineering, Mäsiarska 74, 04001 Košice, Slovakia (1) Abstract. This paper deals with the prediction of electricity generation in particular part of the network (island operation) where were considered various regimes of the wind power plantContinue reading “Prediction of Electricity Production in Island Operation under the different Wind Generation Modes”

6 Critical Design Challenges in DC Fast Chargers

Published by Rakesh Kumar, EE Power – Technical Articles: 6 Critical Design Challenges in DC Fast Chargers, February 09, 2023. DC fast chargers pose significant challenges to a power grid. Know the six challenges while designing a DC fast charger to overcome the various power quality challenges. The design of a DC fast charger is basedContinue reading “6 Critical Design Challenges in DC Fast Chargers”

PQ Monitoring in Selected Networks of Czech Republic

Published by Petr KREJCI1, Pavel SANTARIUS1, Radovan HAJOVSKY1, Richard VELICKA1, Radim CUMPELIK2VSB – Technical University of Ostrava, Czech Republic (1), CEZ, a.s., Czech Republic (2) Abstract. In the paper, the results of the complex monitoring of selected PQ parameters during 12 years will be summarized together with the comparison of the changes of parameters afterContinue reading “PQ Monitoring in Selected Networks of Czech Republic”

Practical Case Study: Measurement of Power Quality Problems Caused by Common New Loads

Published by M.Sc Marko Pikkarainen, M.Sc Pekka Nevalainen, Dr. Pertti Pakonen, Prof. Pekka Verho, Tampere University of Technology, marko.pikkarainen@tut.fi ABSTRACT Two matters have strongly affected use of energy in Finland during recent years. The one is the greenhouse effect and the other is the energy price which has risen. These points have brought to theContinue reading “Practical Case Study: Measurement of Power Quality Problems Caused by Common New Loads”

Electric Arc Furnace Flicker and Harmonic Control

Published by Electrotek Concepts, Inc., PQSoft Case Study: Electric Arc Furnace Flicker and Harmonic Control, Document ID: PQS0314, Date: April 16, 2003. Abstract: A steel manufacturer plans to construct an electric arc furnace-based steel making facility using a thin slab casting machine directly coupled to a hot strip rolling mill. The planned melt shop contains twoContinue reading “Electric Arc Furnace Flicker and Harmonic Control”

Electric Arc Furnace Modeling for Voltage Flicker Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Electric Arc Furnace Modeling for Voltage Flicker Evaluation, Document ID: PQS0313, Date: April 16, 2003. Abstract: A steel manufacturer is planning to add a second arc furnace to their existing facility. Concerns are raised as to whether the additional furnace will cause levels of voltage flicker that mightContinue reading “Electric Arc Furnace Modeling for Voltage Flicker Evaluation”