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Distributed Generation Power Systems
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Distributed Generation Power Systems

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 5067

Special Issue Editor

Dr. Zsolt Čonka

E-Mail Website
Guest Editor
Department of Electric Power Engineering, Faculty of Electrical Engineering and Informatics, Technical University of Kosice (Technicka univerzita v Kosiciach), Kosice, Slovakia
Interests: skills and expertise electrical; electrical power engineering; power systems analysis; power generation; power systems simulation power engineering; distributed generation power systems modelling; power quality power system stability; FACTS; WAMS; power system protection and control
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The electrical power system is going through a revolution. Distributed production has become more widespread in recent years. Distributed generations are installations for the generation of electricity which are used to convert various sources of energy into electricity. The source that we classify as distributed is usually a part of the customer's equipment in which one or more generators are located. Distributed sources of electricity usually represent renewable sources or combined production of electricity and heat, whose technology and nature of production also influence the behavior of sources at the time of failure. The number of distributed sources is high compared to the past and has a growing trend. Rated active powers are in the order from tens up to hundreds of kW. These sources are usually connected to the LV voltage level. Rated outputs of MW units are connected to HV networks.

An increase of decentralized sources may lead to new problems with the operation of distribution and transmission systems. Solutions for problems related with decentralized production are welcome.

Dr. Zsolt Čonka
Guest Editor

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

  • Distributed Energy Resources (DER)
  • Management of Distributed Generation Power Systems (DGPS)
  • Protection of DGPS
  • Storage systems
  • Electric vehicles
  • Renewable energy sources
  • Inverters
  • Optimization of DER
  • Microgrid
  • Smart grid
  • Power flow in DGPS
  • Integration of DER
  • Forecast
  • Stability od DGPS
  • Power quality in DGPS
  • Cogeneration

Published Papers (3 papers)

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Research

17 pages, 2249 KiB  
Article
Renewable Energy Sources as Backup for a Water Treatment Plant
by Michal Kotulla, Miroslava Goňo, Radomír Goňo, Matouš Vrzala, Zbigniew Leonowicz, Iwona Kłosok-Bazan and Joanna Boguniewicz-Zabłocka
Energies 2022, 15(17), 6288; https://0-doi-org.brum.beds.ac.uk/10.3390/en15176288 - 29 Aug 2022
Cited by 7 | Viewed by 1915
Abstract
The article is focused on the issue of blackouts in a water industry and the selection of a renewable energy source for a water treatment plant. In the case of power outage, it is necessary to constantly ensure the supply of a drinking [...] Read more.
The article is focused on the issue of blackouts in a water industry and the selection of a renewable energy source for a water treatment plant. In the case of power outage, it is necessary to constantly ensure the supply of a drinking water, if this requirement would not be met, it could cause of deterioration of hygiene and health of the population. To be able to convey drinking water during a blackout, it is mandatory to have a backup power supply. The state of the current water treatment plants in the Czech Republic is that they are using diesel generators as backup power supply, which causes air pollution. There are other options of power supply that can be used, such as renewable energy sources. By using a multi-criteria analysis method, renewable energy sources were analyzed for a water treatment plant in the selected region. Based on the results, it seems that the most suitable choice is a small hydro power plant at the entry points of water treatment plant. Other possibilities of renewable energy sources that may be suitable for a water treatment plant and the usage of a multi-criteria analysis method for a water treatment plant in other countries are also discussed. Full article
(This article belongs to the Special Issue Distributed Generation Power Systems)
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18 pages, 4104 KiB  
Article
Distributed Generation Power Systems in Wastewater Management
by Matouš Vrzala, Miroslava Goňo, Radomír Goňo, Michal Kotulla, Małgorzata Wzorek and Zbigniew Leonowicz
Energies 2022, 15(17), 6283; https://0-doi-org.brum.beds.ac.uk/10.3390/en15176283 - 28 Aug 2022
Cited by 5 | Viewed by 1374
Abstract
The article concerns the energy security of a wastewater treatment process caused by unforeseen situations related to the risk of electrical power outages. In this case, renewable energy sources based on distributed generation power systems can solve this problem in each wastewater treatment [...] Read more.
The article concerns the energy security of a wastewater treatment process caused by unforeseen situations related to the risk of electrical power outages. In this case, renewable energy sources based on distributed generation power systems can solve this problem in each wastewater treatment plant. The article highlights e related challenges and proposes the direction of solutions in this regard based on Czech conditions. The first part of the paper deals with the consequences of long-term outage of wastewater treatment plants on the population and the environment. There are several solutions presented for blackout conditions, and model calculations are made based on data from a Czech wastewater treatment plant. Diesel engine-generators, biogas as a cogeneration source of heat and electricity, solar panels with storage systems and combined biogas and solar systems were considered as approaches to provide energy autonomy during a blackout in a wastewater treatment plant. Special attention was paid to a combination of CHP units with solar panels and batteries. The results were evaluated for three different locations for this combination. It was concluded that biogas combustion in the CHP unit was the most profitable option, allowing the production of electricity independently of the grid for its own consumption and possibly for other operations. The last part of the paper deals with the transition to island operation, which must occur during a blackout. This transition is more difficult for both solar panels and cogeneration units if they were to supply electricity to the grid before a blackout. The transition to energy island operation could be ensured by frequency relay and processor devices to control the circuit breaker. Then, to maintain island operation, it would be necessary to have an automatic load shedding/application system. Full article
(This article belongs to the Special Issue Distributed Generation Power Systems)
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18 pages, 2219 KiB  
Article
Optimal Scheduling of Reconfigurable Microgrids in Both Grid-Connected and Isolated Modes Considering the Uncertainty of DERs
by Sepideh Rezaeeian, Narges Bayat, Abbas Rabiee, Saman Nikkhah and Alireza Soroudi
Energies 2022, 15(15), 5369; https://0-doi-org.brum.beds.ac.uk/10.3390/en15155369 - 25 Jul 2022
Cited by 6 | Viewed by 1245
Abstract
In this study, an operation strategy is introduced for distributed energy resources (DERs) in reconfigurable microgrids (MGs) to improve voltage profiles, minimize power losses, and boost the system performance. The proposed methodology aims to minimize power loss and energy not supplied (ENS) in [...] Read more.
In this study, an operation strategy is introduced for distributed energy resources (DERs) in reconfigurable microgrids (MGs) to improve voltage profiles, minimize power losses, and boost the system performance. The proposed methodology aims to minimize power loss and energy not supplied (ENS) in MGs with an intelligent share of DERs and network reconfiguration in grid-connected and islanded modes. Due to the inherent uncertain nature of renewable DERs, these sources’ power output is considered as an uncertain parameter, and its effect on the system characteristics is analyzed. The state-of-the-art information gap decision theory (IGDT) approach is utilized to explore different decision-making strategies in the energy scheduling of reconfigurable MGs to deal with such uncertainty. To validate the effectiveness of the proposed method, the IEEE 33-bus radial system is utilized as the test MG. The simulation results show the importance of energy storage systems and reconfiguration in dealing with uncertainty and improving system reliability. Full article
(This article belongs to the Special Issue Distributed Generation Power Systems)
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