energies-logo

Journal Browser

Journal Browser

Power Quality and Disturbances in Modern Distribution Networks

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A1: Smart Grids and Microgrids".

Deadline for manuscript submissions: 10 July 2024 | Viewed by 1021

Special Issue Editors


E-Mail Website
Guest Editor
Department of Electrical Engineering, Faculty of Engineering, University of Malta, MSD 2080 Msida, Malta
Interests: control of power electronic converters applied to renewable energy sources; smart grids; power systems; power quality and energy efficiency
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Electrical Engineering, Faculty of Engineering, University of Malta, MSD 2080 Msida, Malta
Interests: microgrids (AC/DC/hybrid); electric transportation technologies; energy management systems; wind and PV grid connected systems; control and management of distributed generation and energy storage systems; smart grids; IoT applied to smart grids
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Several key strategies are currently being adopted to meet the drive towards energy decarbonisation. These strategies include the integration of renewable energy sources and energy storage into the utility grid, power-to-X technologies, the electrification of transport and the use of advanced, more efficient power electronic converters for sustainable energy use. As the adoption of these technologies is growing exponentially, the energy generation paradigm is shifting from conventional synchronous generators to inverter-based power sources, while the nature of the loads is changing from linear to non-linear. This shift is affecting the power quality of the supply, thereby affecting the reliable operation of electrical networks and consumer equipment. The most common power quality disturbances manifest as harmonics/interharmonics, dips, swells, transients and asymmetrical variations. These events are leading to dramatic changes in the operation of modern distribution networks and have prompted the need for effective power quality management through continuous monitoring, analysis and mitigation. This approach is critical to ensure a reliable and stable power supply.

This Special Issue of Energies seeks to outline the power quality issues in modern distribution systems, emphasising their significance in the present and future generation scenarios. We invite contributions that express new concepts and research findings on possible mitigation measures for present and envisaged scenarios. The following is a non-exhaustive list of topics of interest for this Special Issue:

  • Monitoring, analysis and mitigation of power disturbances;
  • Identification of harmonic sources;
  • Techniques for the provision of power system virtual/synthetic inertia;
  • Advanced control of power converters;
  • Grid-following/forming inverters for power quality enhancement;
  • Active voltage compensation systems;
  • Active filtering of harmonics and harmonic compensation techniques;
  • Enhancing power quality through energy storage systems;
  • Power quality in microgrids.

Dr. John Licari
Dr. Alexander Micallef
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • power quality disturbance
  • harmonics
  • power system virtual/synthetic inertia
  • power converters control
  • microgrid power quality

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

14 pages, 8974 KiB  
Article
Effect of Phase Shifting on Real-Time Detection and Classification of Power Quality Disturbances
by Enrique Reyes-Archundia, Wuqiang Yang, Jose A. Gutiérrez Gnecchi, Javier Rodríguez-Herrejón, Juan C. Olivares-Rojas and Aldo V. Rico-Medina
Energies 2024, 17(10), 2281; https://doi.org/10.3390/en17102281 - 9 May 2024
Viewed by 327
Abstract
Power quality improvement and Power quality disturbance (PQD) detection are two significant concerns that must be addressed to ensure an efficient power distribution within the utility grid. When the process to analyze PQD is migrated to real-time platforms, the possible occurrence of a [...] Read more.
Power quality improvement and Power quality disturbance (PQD) detection are two significant concerns that must be addressed to ensure an efficient power distribution within the utility grid. When the process to analyze PQD is migrated to real-time platforms, the possible occurrence of a phase mismatch can affect the algorithm’s accuracy; this paper evaluates phase shifting as an additional stage in signal acquisition for detecting and classifying eight types of single power quality disturbances. According to their mathematical models, a set of disturbances was generated using an arbitrary waveform generator BK Precision 4064. The acquisition, detection, and classification stages were embedded into a BeagleBone Black. The detection stage was performed using multiresolution analysis. The feature vectors of the acquired signals were obtained from the combination of Shannon entropy and log-energy entropy. For classification purposes, four types of classifiers were trained: multilayer perceptron, K-nearest neighbors, probabilistic neural network, and decision tree. The results show that incorporating a phase-shifting stage as a preprocessing stage significantly improves the classification accuracy in all cases. Full article
(This article belongs to the Special Issue Power Quality and Disturbances in Modern Distribution Networks)
Show Figures

Figure 1

16 pages, 1048 KiB  
Article
Influence of Background Voltage Distortion on Operation of Passive Harmonic Compensation Devices
by Aleksandr Skamyin, Yaroslav Shklyarskiy and Ilya Gurevich
Energies 2024, 17(6), 1342; https://doi.org/10.3390/en17061342 - 11 Mar 2024
Viewed by 500
Abstract
This paper discusses the issues of assessing the influence of external distortion sources on the functioning of a shunt passive harmonic filter. In this study, we evaluated the overload of a passive harmonic filter based on determining the contributions of distortion sources. A [...] Read more.
This paper discusses the issues of assessing the influence of external distortion sources on the functioning of a shunt passive harmonic filter. In this study, we evaluated the overload of a passive harmonic filter based on determining the contributions of distortion sources. A method was proposed for assessing the contributions of distortion sources, which allowed us, regardless of background distortions, to determine the contributions of consumer loads, as well as the contribution of background distortions. The simulation was carried out using the Simulink MatLab software (version R2023a). Several scenarios were considered in which the following values were varied: supply feeder impedance, level of background distortions, consumer electrical load composition, and passive filter parameters. It was found that the contribution of the background distortion source decreases with increasing impedance of the supply grid. It was determined that the consumer load contribution is independent of background voltage harmonics and can be used to estimate the overload of a passive harmonic filter. It was shown that it is necessary to take into account the overload of the passive filter by currents from background distortion sources, which did not exceed 135% of the rated rms current for the conditions under consideration. A mathematical model was proposed to estimate the overload of a passive filter in the presence of background voltage distortions. This model was obtained during analytical studies and allows one to evaluate the overload of a passive filter, taking into account the short circuit ratio, detuning frequency and power of the passive filter, and the share contribution of background distortion sources. Full article
(This article belongs to the Special Issue Power Quality and Disturbances in Modern Distribution Networks)
Show Figures

Figure 1

Back to TopTop