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Energies
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Steady-State Operation, Disturbed Operation and Protection of Power Networks 2021
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Steady-State Operation, Disturbed Operation and Protection of Power Networks 2021

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

Deadline for manuscript submissions: closed (20 August 2021) | Viewed by 5214

Special Issue Editor

Prof. Dr. François Vallée

E-Mail Website
Guest Editor
Power Electrical Engineering Unit, University of Mons, Boulevard Dolez 31 7000 Mons, Belgium
Interests: energy saving; water and wastewater minimisation; optimisation of energy supply networks; waste to energy; integration of renewable energy sources; systems modelling; process synthesis; process operation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Guest Editor is inviting submissions to a Special Issue of Energies on “Steady-State Operation, Disturbed Operation and Protection of Power Networks”. With the ongoing energy transition, Distributed Energy Resources (DERs) and new loads (e.g., electric vehicles, EVs) are emerging in modern power systems, which is highly impacting the operation of the latter. Indeed, in addition to the increased uncertainty in power system management, DERs (as well as EVs) can significantly affect the power quality level (by harmonics, unbalance, etc.) and contribute in multiple manners (depending on the interface) to the fault currents. Many algorithms and tools have been developed over the last years to ensure safe operation of the system while fostering the integration of renewable energy-based generation. Moreover, the current advances in Artificial Intelligence (AI, e.g., deep learning) and the actual computation resources offer new prospects for related research.   

This Special Issue will deal with novel optimization, forecasting, and computation techniques that improve the operation and protection of modern power systems. Topics of interest for publication include, but are not limited to the following:

  • Optimization of operation of power systems;
  • Impact of DERs and storage devices on power system operation;
  • Application of AI techniques for an improved power system operation;
  • Recent developments in protective equipment;
  • New improved coordination schemes among protective devices;
  • Power quality matters in modern power systems;
  • Control methods of power electronics;
  • New forecasting methods;
  • Integration and impact of electric vehicles

Prof. Dr. François Vallée
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
  • power quality
  • smart grid
  • storage
  • forecast
  • electric vehicles
  • power electronics
  • protection schemes & devices

Published Papers (2 papers)

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Research

21 pages, 16277 KiB  
Article
Commercial PV Inverter IEEE 1547.1 Ride-Through Assessments Using an Automated PHIL Test Platform
by Nayeem Ninad, Estefan Apablaza-Arancibia, Michel Bui and Jay Johnson
Energies 2021, 14(21), 6936; https://doi.org/10.3390/en14216936 - 21 Oct 2021
Cited by 5 | Viewed by 2781
Abstract
As more countries seek solutions to their de-carbonization targets using renewable energy (RE) technologies, interconnection standards and national grid codes for distributed energy resources (DER) are being updated to support higher penetrations of RE and improve grid stability. Common grid-code revisions mandate DER [...] Read more.
As more countries seek solutions to their de-carbonization targets using renewable energy (RE) technologies, interconnection standards and national grid codes for distributed energy resources (DER) are being updated to support higher penetrations of RE and improve grid stability. Common grid-code revisions mandate DER devices, such as solar inverters and energy storage systems, ride-through (RT) voltage and frequency disturbances. This is necessary because as the percentage of generation from DER increases, there is a greater risk power system faults will cause many or all DER to trip, triggering a substantial load-generation imbalance and possible cascading blackout. This paper demonstrates for the first time a methodology to verify commercial DER devices are compliant to new voltage, frequency, and rate of change of frequency (ROCOF) RT requirements established in IEEE Std. 1547-2018. The methodology incorporates a software automation tool, called the SunSpec System Validation Platform (SVP), in combination with a hardware-in-the-loop (HIL) system to execute the IEEE Std. 1547.1-2020 RT test protocols. In this paper, the approach is validated with two commercial photovoltaic inverters, the test results are analyzed for compliance, and improvements to the test procedure are suggested. Full article
(This article belongs to the Special Issue Steady-State Operation, Disturbed Operation and Protection of Power Networks 2021)
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15 pages, 23680 KiB  
Article
Protection Coordination Method Using Symmetrical Components in Loop Distribution System
by Jung-Hun Lee, Woo-Hyun Kim, Hak-Ju Lee, Jun-Oh Kim and Woo-Kyu Chae
Energies 2021, 14(16), 4947; https://doi.org/10.3390/en14164947 - 12 Aug 2021
Cited by 2 | Viewed by 1962
Abstract
Power utilities worldwide commonly use the radial distribution system because of its advantages of being simple in structure and having relatively inexpensive installation costs. It has a disadvantage in that its power supply reliability is low because the load side of the fault [...] Read more.
Power utilities worldwide commonly use the radial distribution system because of its advantages of being simple in structure and having relatively inexpensive installation costs. It has a disadvantage in that its power supply reliability is low because the load side of the fault section will suffer from an outage in the event of a fault in the system. However, recently, with ICT (Information and Communication Technologies) development, system reliability is required to be high as the outage-susceptible loads increase. In addition, the increase in the connection of distributed resources such as renewable energy and electric vehicles is making it impossible to predict the power flow and reducing line utilization. Therefore, a loop power distribution system is proposed as a measure to solve this problem. Because all buses (nodes) in a loop distribution system have two or more power supply routes, they are more reliable than the radial system. It allows them to improve line utilization by connecting lines with different load peak times. However, in the case of a fault in the loop distribution system, the fault current is supplied from both directions, making it impossible to properly isolate the fault section with the protection method of the conventional distribution system. The permissive overreach transfer trip (POTT) method using communication to compensate for the limitations of conventional protection devices, and the other method using directional distance relay, is proposed. However, these methods operate by determining the direction of the fault current but have a disadvantage. It is difficult to detect a fault due to the effects of ground faults and distributed generation (DG) occurring in other lines. Therefore, in this paper, we propose a protection coordination algorithm that uses the negative-sequence component of voltage and current that occur when an unbalanced fault occurs, rather than the determination of the directionality and use of communication. To validate this, we configured a system using PSCAD/EMTDC (Manitoba Hydro International Ltd., Winnipeg, Manitoba, Canada), a system analysis program package and verified the results depending on the type of faults with the proposed algorithm. Full article
(This article belongs to the Special Issue Steady-State Operation, Disturbed Operation and Protection of Power Networks 2021)
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