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Electronics
Special Issues
Smart Grid and Future Electrical Networks
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Smart Grid and Future Electrical Networks

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 11642

Special Issue Editors

Dr. Thomas Strasser

E-Mail Website
Guest Editor
1. Electric Energy Systems, Center for Energy, AIT Austrian Institute of Technology, Giefinggasse 2, A-1210 Vienna, Austria
2. Institute of Mechanics and Mechatronics, TU Wien, Getreidemarkt 9/325, A-1060 Vienna, Austria
Interests: power utility automation; modeling and (real-time) simulation of smart grid systems; ICT for smart grids; validation and testing of smart grid systems; hardware-in-the-loop experiments; industrial automation
Special Issues, Collections and Topics in MDPI journals
Dr. Filip Pröstl Andrén

E-Mail Website
Guest Editor
AIT Austrian Institute of Technology – Center for Energy, Giefinggasse 2, 1210 Vienna, Austria
Interests: power utility automation; control and information systems; validation and testing of smart grid systems; model-driven engineering; ICT for smart grids

Special Issue Information

Dear Colleagues,

Due to the integration of renewable energy resources, the electric power system is undergoing a significant change in terms of operation and planning. The advancement into a so-called smart grid by using advanced automation and control approaches produces new challenges but also opportunities. The aim of this Special Issue is therefore to tackle the ongoing changes and innovations in the domain of power and energy systems. We invite all papers with novel contributions to smart grids and future electrical networks with, but not limited to, the following topics:

  • Advanced planning an operation concepts for power systems;
  • Sophisticated microgrid concepts;
  • Local energy communities;
  • Hybrid energy network concepts;
  • Integration of innovative power electronic devices;
  • Cyber-physical power and energy systems principles;
  • Power electronic dominated power grids;
  • Impact of new technologies (e.g., big data, IoT) on power system operation and planning.

Dr. Thomas Strasser
Dr. Filip Pröstl Andrén
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. Electronics 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 2400 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 distribution systems
  • AC and/or DC grid concepts
  • microgrids
  • hybrid grids
  • automation and control
  • energy management
  • power electronic devices

Published Papers (4 papers)

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Research

15 pages, 4409 KiB  
Article
Research on Real-Time Infrared Image Fault Detection of Substation High-Voltage Lead Connectors Based on Improved YOLOv3 Network
by Qiwei Xu, Hong Huang, Chuan Zhou and Xuefeng Zhang
Electronics 2021, 10(5), 544; https://doi.org/10.3390/electronics10050544 - 25 Feb 2021
Cited by 18 | Viewed by 2116
Abstract
Currently, infrared fault diagnosis mainly relies on manual inspection and low detection efficiency. This paper proposes an improved YOLOv3 network for detecting the working state of substation high-voltage lead connectors. Firstly, dilated convolution is introduced into the YOLOv3 backbone network to process low-resolution [...] Read more.
Currently, infrared fault diagnosis mainly relies on manual inspection and low detection efficiency. This paper proposes an improved YOLOv3 network for detecting the working state of substation high-voltage lead connectors. Firstly, dilated convolution is introduced into the YOLOv3 backbone network to process low-resolution element layers, so as to enhance the network’s extraction of image features, promote function propagation and reuse, and improve the network’s recognition performance of small targets. Then the fault detection model of the infrared image of the high voltage lead connector is created and the optimal infrared image test data set is obtained through multi-scale training. Finally, the performance of the improved network model is tested on the data set. The test results show that the improved YOLOv3 network model has an average detection accuracy of 84.26% for infrared image faults of high-voltage lead connectors, which is 4.58% higher than the original YOLOv3 network model. The improved YOLOv3 network model has an average detection time of 0.308 s for infrared image faults of high-voltage lead connectors, which can be used for real-time detection in substations. Full article
(This article belongs to the Special Issue Smart Grid and Future Electrical Networks)
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27 pages, 907 KiB  
Article
Smart Grid Virtualisation for Grid-Based Routing
by Armin Veichtlbauer, Alexander Heinisch, Ferdinand von Tüllenburg, Peter Dorfinger, Oliver Langthaler and Ulrich Pache
Electronics 2020, 9(11), 1879; https://doi.org/10.3390/electronics9111879 - 08 Nov 2020
Cited by 3 | Viewed by 2810
Abstract
Due to changed power consumption patterns, technological advance and deregulation, the appearance of the power grid in the low and medium voltage segment has changed. The spread of heating and cooling with electrical energy and an increase of electric vehicles as well as [...] Read more.
Due to changed power consumption patterns, technological advance and deregulation, the appearance of the power grid in the low and medium voltage segment has changed. The spread of heating and cooling with electrical energy and an increase of electric vehicles as well as the broad rollout of photovoltaic systems has a major impact on the peak power demand of modern households and the volatility smart grids have to face. Thus, besides the load impact of the growing population of electric vehicles, modern households are not only consumers of electrical power, but also power producers, so called prosumers. The rising number of prosumers and the limitations of grid capacities lead to an increasingly distributed system of heterogeneous components, which have to be managed and operated with locality and scalability in mind. Virtualisation technologies, particularly known as state of the art in data centre computing, can lead to a paradigm shift needed to meet the growing demands of this evolution. A key issue here is to forward data to the correct data sinks, where data are required in order to keep the grid balanced. This routing process has to be able to react on grid changes in a timely manner, i.e., it must be based on the instantaneous state of the grid. In this paper, we propose a solution based on virtualising the communication infrastructure in the low and medium voltage grid. We evaluate two different approaches. The first approach is based on SDN; an ONOS SDN controller is used to change the behaviour of the communication infrastructure according to information provided by components of the power grid. The second approach uses Coaty and a Mosquitto MQTT broker to deliver messages to the desired endpoint, again based on information from the power grid. Full article
(This article belongs to the Special Issue Smart Grid and Future Electrical Networks)
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22 pages, 1097 KiB  
Article
The Impact of Virtualisation Techniques on Power System Control Networks
by Friederich Kupzog, Armin Veichtlbauer, Alexander Heinisch, Ferdinand von Tüllenburg, Oliver Langthaler, Ulrich Pache, Oliver Jung, Reinhard Frank and Peter Dorfinger
Electronics 2020, 9(9), 1433; https://doi.org/10.3390/electronics9091433 - 03 Sep 2020
Cited by 4 | Viewed by 3407
Abstract
Virtualisation is a concept successfully applied to IT systems. In this work, we analyse how virtualisation approaches, such as edge computing, brokerage and software-defined networking, can be applied in the area of electricity grid management and control systems. Power system information and communications [...] Read more.
Virtualisation is a concept successfully applied to IT systems. In this work, we analyse how virtualisation approaches, such as edge computing, brokerage and software-defined networking, can be applied in the area of electricity grid management and control systems. Power system information and communications technology is currently subject to significant changes. Networked power grid components including renewable energy units, electric vehicles and heat pumps need to be integrated into grid management systems. We studied how virtualisation techniques can support system operators in increasing an energy and communication system’s dependability and situational awareness, and how manual (mostly field-level) configuration and engineering efforts can be reduced. Starting from a working hypothesis, three concrete use-cases were implemented and the performance enhancements were benchmarked to allow for well-informed answers to the questions above. We took a close look at application-protocol-independent redundancy, grid-based routing and online system integrity control. In these study cases, we found significant improvements could be achieved with virtualisation in terms of reduced engineering effort, better system management and simplification in high-level system architecture, since implementation details are hidden by the virtualisation approach. Full article
(This article belongs to the Special Issue Smart Grid and Future Electrical Networks)
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26 pages, 4891 KiB  
Article
Electro-Mechanical Design and Creep Analysis of Proposed Enclosure for Flexible Gas Insulated Line Regarding Subsurface Metropolitan Applications of High-Voltage Transmission Lines
by Muhammad Junaid Alvi, Tahir Izhar, Asif Ali Qaiser, Awais Anjum and Rizwan ul Hassan
Electronics 2019, 8(9), 929; https://doi.org/10.3390/electronics8090929 - 25 Aug 2019
Cited by 1 | Viewed by 2588
Abstract
Land shortage in metropolitan vicinities entails subsurface implementation of power transmission lines (PTLs) which demand structural flexibility, as well as substantial load bearing capability. Thus, development of a flexible gas insulated transmission line (FGIL) necessitates its strength degradation analysis, regarding the synergistic effect [...] Read more.
Land shortage in metropolitan vicinities entails subsurface implementation of power transmission lines (PTLs) which demand structural flexibility, as well as substantial load bearing capability. Thus, development of a flexible gas insulated transmission line (FGIL) necessitates its strength degradation analysis, regarding the synergistic effect of aging and mechanical loadings. Moreover, correlation of conductor and enclosure dimensions of FGIL apropos field distribution, requires careful consideration regarding their dimensional specifications. In this research, a comprehensive electro-mechanical design is performed for the proposed flexible-thermoplastic-enclosure of a 132 kV FGIL by considering the synergistic impact of time and temperature-based aging, along with the effect of external and internal loadings, such as dead load, live load and internal gas pressure. Additionally, a recursive design algorithm for the proposed scheme regarding electro-mechanical aspects, along with aging perspectives is developed. Comparative analysis of proposed and conventional schemes regarding electro-mechanical and aging aspects revealed that the proposed enclosure exhibits the required structural strength, as well as flexibility for trenchless subsurface application of FGILs in metropolitan areas. Full article
(This article belongs to the Special Issue Smart Grid and Future Electrical Networks)
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