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Advances in Dynamic Voltage Restorers

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: closed (20 April 2022) | Viewed by 5363

Special Issue Editors


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Guest Editor
Department of Electrical Engineering, Federal University of Pernambuco, Recife 50.740-550, PE, Brazil
Interests: PV systems; power electronics
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Electrical Engineering, Federal University of Pernambuco, Recife 50.740-550, PE, Brazil
Interests: PV systems; power electronics; power quality
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Power Electronics and Drives Research Group (GEPAE), DEE, Universidade Federal de Pernambuco, Recife 50740-530, Brazil
Interests: power electronics; photovoltaic systems; power quality

Special Issue Information

Dear Colleagues,

Most of the modern loads are sensible to voltage fluctuations, especially those one based on microprocessors. Nowadays, such loads are the majority, and they are present everywhere, from our homes (which each day are becoming “smarter”) to large industrial plants. But the highest impacts of this power quality issue occurs when those loads are employed in critical applications like hospitals, telecommunication infrastructure, and industries. A voltage sag/swell on the power distribution system, even if for a fraction of second, could result in production losses and a cost-significant financial impact. Although most of those voltage disturbances are originated by faults on the distribution power system and the efforts to minimize them are constantly underway, avoiding them completely is economically inviable. Thus, the development of power devices for the custom power type has been presented as one of the means to protect sensitive loads from the problems of power quality such as voltage sags/swells. The dynamic voltage restorer (DVR) has become a well-accepted alternative to mitigate these problems. This Special Issue of Energies intends to collect and disseminate the latest research and developments related to “Advances in Dynamic Voltage Restorers.” The topics of interest include, but are not limited to:

  • active power conditioners (dynamic voltage restorers (DVR), unified power quality conditioners (UPQC), active power filters, hybrid filters)
  • control techniques for the improvement of active power conditioners (power theories, signal processing techniques)
  • advanced active power conditioners monitoring (smart meters, phasor measurement unit, signal processing technics, event classification)
  • Topologies and power devices for series compensation
  • Fault tolerance in series compensation devices
  • Energy storage systems and other methods to improve the compensation time

Prof. Marcelo Cabral Cavalcanti
Prof. Leonardo Rodrigues Limongi
Prof. Gustavo Medeiros de Souza Azevedo
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

  • dynamic voltage restorer
  • power quality
  • active power conditioners
  • power electronics
  • energy storage

Published Papers (2 papers)

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Research

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13 pages, 2652 KiB  
Article
A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks
by Xiaohan Guo, Yong Li, Shaoyang Wang, Yijia Cao, Mingmin Zhang, Yicheng Zhou and Nakanishi Yosuke
Energies 2021, 14(19), 6434; https://doi.org/10.3390/en14196434 - 08 Oct 2021
Cited by 10 | Viewed by 1821
Abstract
With the increasing use of sensitive loads in frequency converters and in relays in distribution networks, voltage sag has become a major power quality issue that urgently needs to be solved. For the purpose of improving the understanding of voltage sag severity in [...] Read more.
With the increasing use of sensitive loads in frequency converters and in relays in distribution networks, voltage sag has become a major power quality issue that urgently needs to be solved. For the purpose of improving the understanding of voltage sag severity in distribution networks, a comprehensive weight-based severity evaluation method of voltage sag is presented in this paper. First, a multi-side index system that takes into account the combined influence of the source, network, and the load is established. A comprehensive weight method, which combines the improved analytic hierarchy process (IAHP) and the entropy method, is then adopted to determine the index weight. The weight of each index and the degree of superiority are linearly weighted to obtain the severity of voltage sag at different observation points. Finally, the effectiveness of the proposed method is verified using a distribution network model established in DIgSILENT PowerFactory (15.1.7, Gomaringen, Germany). Full article
(This article belongs to the Special Issue Advances in Dynamic Voltage Restorers)
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Review

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25 pages, 16309 KiB  
Review
An Overview of Voltage Boosting Techniques and Step-Up DC-DC Converters Topologies for PV Applications
by Márcio R. S. de Carvalho, Rafael C. Neto, Eduardo J. Barbosa, Leonardo R. Limongi, Fabrício Bradaschia and Marcelo C. Cavalcanti
Energies 2021, 14(24), 8230; https://doi.org/10.3390/en14248230 - 07 Dec 2021
Cited by 6 | Viewed by 2938
Abstract
The development of technologies to improve the performance of photovoltaic (PV) module integrated converters (MICs) is fundamental to increase the use of distributed generation systems with photovoltaic power source in large urban centers, mainly for complex residential roofs. For two-stage PV MICs, high [...] Read more.
The development of technologies to improve the performance of photovoltaic (PV) module integrated converters (MICs) is fundamental to increase the use of distributed generation systems with photovoltaic power source in large urban centers, mainly for complex residential roofs. For two-stage PV MICs, high step-up DC-DC converters are required to boost the low PV module voltage to a higher voltage, in order to suit the DC bus voltage requirements of grid-tied inverters. Thus, to support researchers interested in developing DC-DC power conversion for PV microinverters, this paper classifies the DC-DC converters according to their operational and constructive characteristics and presents some elementary voltage-boosting techniques to aid in analyzing and understanding more complex topologies. Finally, high step-up DC-DC converters based on magnetic coupling and switched capacitor widely cited by important works related to PV applications are presented, with their principles of operation analysed in a simple and objective way, but sufficient to understand their capability to provide high voltage gain. The approach presented by this paper leads to insight into how to place the energy storage elements to create new topologies of DC-DC converters, so that high voltage gain is achieved, and how to analise the high voltage gain capability of complex topologies Full article
(This article belongs to the Special Issue Advances in Dynamic Voltage Restorers)
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