Special Issue "Advances in Power System Stability and Control"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Smart Grids and Microgrids".

Deadline for manuscript submissions: 31 July 2021.

Special Issue Editors

Prof. Dr. Seon-Ju Ahn
E-Mail Website
Guest Editor
Department of Electrical Engineering; Chonnam National University, Gwangju 61186, Korea
Interests: power system control; real-time simulation; renewable energy; distributed generation; smart grid
Special Issues and Collections in MDPI journals
Prof. Dr. Hyun-Koo Kang
E-Mail Website
Guest Editor
Department of Electrical & Electronic Engineering, Hannam University, Daejeon, South Korea
Interests: distributed energy resources; distribution system design, analysis and operation

Special Issue Information

Dear Colleagues,

Power system stability has always been a matter of importance, although different types of instability have emerged at different periods. Various control measures and devices have been developed and applied to the power system operation to maintain the stability. Over the last decade, new challenges have emerged that make the operation of power system complex and difficult. Widespread installation of renewable energy sources (RESs), such as photovoltaic and wind power, have considerably increased the uncertainty in power system operation. RES units, connected to the grid with power electronic converters, decreased the system inertia. Faster frequency dynamics in low inertia systems make power system operation and control more challenging.

This Special Issue aims therefore to encourage both academic and industrial researchers to present their latest findings on the advanced technologies and theories for the improvement of power system stability. The main topics of interest for this Special Issue include, but are not limited to:

  • Impact analysis of uncertain renewable energy sources on power system operation
  • Information and communication technologies for power system control
  • Application of artificial intelligence to power system operation
  • Advanced power electronics technologies
  • Control of HVDC for the improvement of dynamic stability
  • Energy storage system application for stability improvement
  • Synthetic inertia from renewable energy sources
  • PMU and wide area monitoring for power system control
  • Advanced energy management system
  • Advanced control theory for power system analysis and control

Prof. Dr. Seon-Ju Ahn
Prof. Dr. Hyun-Koo Kang
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 papers will be 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 2000 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 system control
  • power system operation
  • power system stability
  • renewable energy resources
  • advanced control theory
  • low inertia system
  • uncertainty
  • power electronics application
  • wide area control

Published Papers (2 papers)

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Research

Open AccessArticle
A Novel Structure of a Power System Stabilizer for Microgrids
Energies 2021, 14(4), 905; https://doi.org/10.3390/en14040905 - 09 Feb 2021
Viewed by 381
Abstract
This paper proposes a novel structure of a power system stabilizer (PSS) to improve the stability of synchronous generators (SGs) in microgrids. Microgrids are relatively vulnerable in terms of stability due to their small size and low inertia. The rotational inertia and voltage [...] Read more.
This paper proposes a novel structure of a power system stabilizer (PSS) to improve the stability of synchronous generators (SGs) in microgrids. Microgrids are relatively vulnerable in terms of stability due to their small size and low inertia. The rotational inertia and voltage support of SGs are highly suitable for getting over the vulnerabilities of microgrids, but there exist weaknesses in low-frequency oscillations (LFOs) and limitations of synchronization due to electromagnetic characteristics. Therefore, we study how to accommodate the features of microgrids in the PSS of SGs and further enhance present advantages. The PSS proposed in this paper not only damps out LFOs by conventional lead-lag compensation but also provides additional damping torque according to the magnitude of the perturbation using a synchronous impedance characteristic (SIC). The proposed Lyapunov energy-function-based control strategy can also increase the synchronizing power of the SG to improve transient stability. For performance verification, we use parameters obtained by the particle swarm optimization (PSO) algorithm to compare the existing PSS with the proposed one and analyze them. The effect of the proposed micro-power system stabilizer (μPSS) is analyzed through frequency response analysis, and finally, small-signal stability analysis and the performance of transient stability are verified by time-domain simulation (TDS) on MATLAB/Simulink. Full article
(This article belongs to the Special Issue Advances in Power System Stability and Control)
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Open AccessArticle
IEC 61850-Based Centralized Protection against Single Line-To-Ground Faults in Ungrounded Distribution Systems
Energies 2021, 14(3), 722; https://doi.org/10.3390/en14030722 - 30 Jan 2021
Viewed by 268
Abstract
We developed an International Electrotechnical Commission (IEC) 61850-based centralized protection scheme to prevent single line-to-ground (SLG) faults in the feeders and busbars of ungrounded distribution systems. Each feeder intelligent electronic device (IED) measures its zero-sequence current and voltage signals and periodically transmits zero-sequence [...] Read more.
We developed an International Electrotechnical Commission (IEC) 61850-based centralized protection scheme to prevent single line-to-ground (SLG) faults in the feeders and busbars of ungrounded distribution systems. Each feeder intelligent electronic device (IED) measures its zero-sequence current and voltage signals and periodically transmits zero-sequence phasors to a central IED via a Generic Oriented Object Substation Event message. Using the zero-sequence phasors, the central IED detects SLG faults in feeders and busbars. To achieve centralized protection, angle differences between the zero-sequence currents and voltage phasors are exploited, and their calculation compensates for data desynchronization. The feeder IEDs were implemented using the MMS-EASE Lite library, while the transmitted zero-sequence phasors were calculated based on fault signals simulated by Power System Computer Aided Design / Electro-Magnetic Transient Design and Control (PSCAD/EMTDC). The central IED determined if the SLG fault was in a feeder or busbar by aggregating and analyzing the zero-sequence phasors received from the feeder IEDs. The results confirmed the validity and efficiency of our centralized protection scheme. Full article
(This article belongs to the Special Issue Advances in Power System Stability and Control)
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