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Distributed Measurement Systems Applied to Modern Electric Distribution Grids

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F2: Distributed Energy System".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 4047

Special Issue Editors

Department of Electrical and Electronic Engineering, University of Cagliari, 09123 Cagliari, Italy
Interests: electrical and electronic measurements; distributed measurement systems; power system measurements; distribution networks; smart grids; measurement uncertainty and propagation analysis; distribution system state estimation; harmonic source estimation; fault location; power quality; power system harmonics; phasor measurement unit (PMU); wide-area measurement system (WAMS); smart metering
Special Issues, Collections and Topics in MDPI journals
Department of Electrical and Electronic Engineering, University of Cagliari, 09123 Cagliari, Italy
Interests: measurements for modern power networks; phasor measurement unit (PMU); phasor data concentrator (PDC); algorithms for synchrophasors estimation; characterization and testing of PMU under steady-state and dynamic conditions; wide-area measurement system (WAMS) based on synchronized measurements
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

Significant changes are occurring in electric power systems. The deregulation of the energy market allowed a variety of participants to buy and sell electricity. Massive and unplanned penetration of generation units and new loads/prosumers connected to both medium and low voltage levels is ongoing. Traditional monitoring, management, and protection schemes will no longer be suitable for modern grids. These require new solutions for the appropriate management and control of the electric infrastructure, dynamically facing challenging operating conditions.

The challenges the new distributed measurement system must face are countless. Innovative solutions for measurement data collection, processing, communication, storage, access, and handling are expected. In recent decades, academic and industrial research projects have been relentlessly carried out looking at the next generation of electric grids. For example, it is possible to highlight how research is pushing to extend the benefits of synchronized measurements to distribution networks, for the evaluation of the quantities of interest, like power quality indexes, in PMU-like devices.

This Special Issue will present concepts, algorithms, technologies, and applications that will help distributed measurement systems contribute to the realization of smart grid scenarios.

More specifically, topics of interest for this Special Issue include (but are not limited to) the following:

  • Distributed measurement architectures for monitoring, management, and protection
  • Synchronized measurements and applications
  • Power quality monitoring
  • Advanced metering infrastructures
  • Smart metering
  • Meter placement
  • Management of distributed energy resources, energy storage systems, and islanding
  • Information and communication technologies for smart grids applications
  • Integration of SCADA/EMS tools
  • Demand-side management
  • Cloud-based solutions

Prof. Dr. Sara Sulis
Dr. Paolo Castello
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

  • Distribution grids
  • Smart grids
  • Microgrids
  • Smart meters
  • Power quality
  • Management, control, and protection
  • Distributed generation
  • Synchronized measurements, PMU
  • Meter placement

Published Papers (2 papers)

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Research

19 pages, 2181 KiB  
Article
Sampling Rate Impact on Electrical Power Measurements Based on Conservative Power Theory
by Larissa R. Souza, Ruben B. Godoy, Matheus A. de Souza, Luigi G. Junior and Moacyr A. G. de Brito
Energies 2021, 14(19), 6285; https://0-doi-org.brum.beds.ac.uk/10.3390/en14196285 - 02 Oct 2021
Cited by 1 | Viewed by 1838
Abstract
This article presents a study of the sampling rate effect on electrical power measurements whose definitions are based on the Conservative Power Theory (CPT). The definitions of active power and reactive power of the CPT were applied in the MATLAB® software by [...] Read more.
This article presents a study of the sampling rate effect on electrical power measurements whose definitions are based on the Conservative Power Theory (CPT). The definitions of active power and reactive power of the CPT were applied in the MATLAB® software by varying the sampling rate and using a digital power meter as a reference. The measurements were performed in scenarios with linear and non-linear loads. Due to the usage of an integral in the CPT calculus, an error was verified associated with the reactive power being inversely proportional to the sampling rate. From the present study, it is possible to conclude that depending on the sample rate, the errors associated with the reactive power measurements are unacceptable and make the CPT implementation unfeasible. The results also presented effective information about the minimal sampling rate needed to make these errors neglected and to assist in choosing suitable microprocessors for the digital implementation of the CPT. It is worth mentioning that this paper was limited to assess how accurate the measurements of active and reactive powers were and important to highlight that the CPT has the additional contribution of dealing with distortion currents and consequently new portions of powers. For the latter, the influence of sampling rate may be crucial and new lines of investigation are motivated. Full article
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16 pages, 5460 KiB  
Article
On Multiple-Resonator-based Implementation of IEC/IEEE Standard P-Class Compliant PMUs
by Miodrag D. Kušljević, Josif J. Tomić and Predrag D. Poljak
Energies 2021, 14(1), 198; https://0-doi-org.brum.beds.ac.uk/10.3390/en14010198 - 02 Jan 2021
Cited by 2 | Viewed by 1521
Abstract
This article deals with the implementation of the P-Class PMU compliant with IEC/IEEE Standard 60255-118-1:2018 by usage of a multiple-resonator (MR)-based approach for harmonic analysis having been proposed recently. In previously published articles, it has been shown that a trade-off between opposite requirements [...] Read more.
This article deals with the implementation of the P-Class PMU compliant with IEC/IEEE Standard 60255-118-1:2018 by usage of a multiple-resonator (MR)-based approach for harmonic analysis having been proposed recently. In previously published articles, it has been shown that a trade-off between opposite requirements is possible by shifting a measurement time stamp along the filter window. Positioning the time stamp in a proximity of the time window center assures flat-top frequency responses. In this article, through simulation tests carried out under various conditions, it is shown that requirements of the IEC/IEEE Standard 60255-118-1:2018 can be satisfied by the second and third order MR structure for particular conditions of the time stamp location. Full article
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