Published by Jacek DĄBROWSKI, Ewa KRAC, Krzysztof GÓRECKI Katedra Elektroniki Morskiej, Akademia Morska w Gdyni Abstract. In the paper the results of long-time investigations of the photovoltaic installation situated in Gdynia Maritime University are presented. A short description of the considered installation and the weather station making possible continuous monitoring of weather parameters are included.Continue reading “Analysis of Long-Time Efficiency of Photovoltaic Installation”
Author Archives: PQBlog
An Introduction to Microgrid Energy Management Systems
Published by Anushree Ramanath, EE Power – Technical Articles: An Introduction to Microgrid Energy Management Systems, July 05, 2021. This article highlights the growth of microgrids and the components of these systems. With the growing number of industries and businesses, access to reliable and cost-effective power is critical. This leads to demand for small-scale powerContinue reading “An Introduction to Microgrid Energy Management Systems”
Solutions to Mitigate Harmonics
Published by Electrical Installation Wiki, Chapter M. Power harmonics management – Solutions to mitigate harmonics There are three different types of solutions to attenuate harmonics: • Modifications in the installation• Special devices in the supply system• Filtering Basic solutions to mitigate harmonics To limit the propagation of harmonics in the distribution network, different solutions are availableContinue reading “Solutions to Mitigate Harmonics”
Harmonics Standards
Published by Electrical Installation Wiki, Chapter M. Power harmonics management – Harmonics standards Harmonic emissions are subject to various standards and regulations: • Compatibility standards for distribution networks• Emissions standards applying to the equipment causing harmonics• Recommendations issued by Utilities and applicable to installations In view of rapidly attenuating the effects of harmonics, a tripleContinue reading “Harmonics Standards”
Harmonic, Interharmonic and Supraharmonic Characterisation of a 12 MW Wind Park Based on Field Measurements
Published by Ana Maria Blanco1, Britta Heimbach2, Bruno Wartmann2, Jan Meyer1, Marco Mangani2, Martin Oeschger2 1Institute of Electrical Power Systems and High Voltage Engineering, Technische UniversitätDresden, Dresden, Germany2Elektrizitätswerk der Stadt Zürich – EWZ, Zurich, Switzerland1E-mail: ana.blanco@tu-dresden.de 24th International Conference & Exhibition on Electricity Distribution (CIRED), 12-15 June 2017.Session 2: Power quality and electromagnetic compatibility Abstract:Continue reading “Harmonic, Interharmonic and Supraharmonic Characterisation of a 12 MW Wind Park Based on Field Measurements”
Selected Aspects of Electrical Equipment Operation with Respect to Power Quality and EMC
Published by Paweł A. MAZUREK, Lublin University of Technology, Institute of Electrical Engineering and Electrotechnologies Abstract. The effectiveness of measures to improve the quality of electricity and the electromagnetic compatibility of electrical equipment is linked to limiting the disturbances introduced by receivers to the power grid and depends on the identification of such interference. TheContinue reading “Selected Aspects of Electrical Equipment Operation with Respect to Power Quality and EMC”
Main Effects of Harmonics in Electrical Installations
Published by Electrical Installation Wiki, Chapter M. Power harmonics management – Main effects of harmonics in electrical installations Effects of harmonics – Resonance The simultaneous use of capacitive and inductive devices in distribution networks may result in parallel or series resonance. The origin of the resonance is the very high or very low impedance values atContinue reading “Main Effects of Harmonics in Electrical Installations”
Power Factor Correction: Reactive Power Compensation Methods
Published by Ahmad Ezzeddine, EE Power – Technical Articles: Power Factor Correction: Reactive Power Compensation Methods, December 15, 2022. This article introduces power factor correction, why it is needed, and how to design it for the system. Increasing photovoltaic penetration tied to the grid has caused many problems for utility providers. One of the main problems is thatContinue reading “Power Factor Correction: Reactive Power Compensation Methods”
Monitoring of Low Voltage Grids with the use of SAIDI Indexes
Published by Zbigniew ŁUKASIK1, Jacek KOZYRA1, Aldona KUŚMIŃSKA-FIJAŁKOWSKA1Uniwersytet Technologiczno-Humanistyczny w Radomiu, Wydział Transportu i Elektrotechniki (1) Abstract. A new method of established and justified level of operational costs for distribution network operators in a new model of regulation in force in the years 2016 – 2020 is described in this article. The changes made inContinue reading “Monitoring of Low Voltage Grids with the use of SAIDI Indexes”
Harmonic Measurement in Electrical Networks
Published by Electrical Installation Wiki, Chapter M. Power harmonics management – Harmonic measurement in electrical networks Procedures for harmonic measurement Harmonic measurements are carried out on industrial or commercial sites: • Preventively, to obtain an overall idea on distribution-network status (network mapping),• In view of corrective action, to determine the origin of a disturbance and determineContinue reading “Harmonic Measurement in Electrical Networks”
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