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Electronics
Special Issues
Strength and Stability of Renewable Energy Systems: Challenges and Solutions
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Strength and Stability of Renewable Energy Systems: Challenges and Solutions

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

Deadline for manuscript submissions: closed (1 May 2022) | Viewed by 6871

Special Issue Editors

Dr. Yuchen Zhang

E-Mail Website
Guest Editor
School of Electrical Engineering and Telecommunications, University of New South Wales, Kensington, NSW 2033, Australia
Interests: power system stability; renewable energy integration; wind farm condition monitoring; wind farm planning; smart campus; energy storage modeling and control; machine learning; data analytics; data-driven applications in power engineering
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Zhao-Yang Dong

E-Mail Website
Guest Editor
School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney 2052, Australia
Interests: power system planning and stability; smart grid/micro-grid; load modeling; renewable energy grid connection; electricity market; smart city; computational methods applications in power engineering problems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Renewable energy sources, such as wind farms and solar systems, are increasingly integrated onto electricity grids via grid-connected power electronic devices. The asynchronous nature and low inertia of power electronics tend to weaken the energy systems, which brings new system stability issues and, in the worst-case scenarios, could lead to cascading failure and blackout events in response to disturbances. This Special Issue focuses on the technical challenges in system strength and stability and encourages innovative and breakthrough technologies to strengthen renewable energy systems. Topics of interest include but are not limited to:

  • Technical challenges in weak grids with high power electronic penetration
  • System strength modelling and assessment
  • Non-network system strength enhancement
  • Power system stability analysis and control
  • Power electronics operation and control
  • Integration of renewable energy into electricity grids
  • Control and coordination of renewable energy sources
  • Energy storage optimization and control
  • Review of technologies for system strength analysis and enhancement

Dr. Yuchen Zhang
Prof. Dr. Zhao-Yang Dong
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 system strength
  • Power system security
  • Power system stability
  • Power system planning
  • Power system control
  • Power electronics
  • Renewable energy grid integration
  • Electrical power conversion
  • Weak grid

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Published Papers (2 papers)

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14 pages, 27469 KiB  
Article
Performance Evaluation of Solar PV Inverter Controls for Overvoltage Mitigation in MV Distribution Networks
by Dilini Almeida, Jagadeesh Pasupuleti, Shangari K. Raveendran and M. Reyasudin Basir Khan
Electronics 2021, 10(12), 1456; https://doi.org/10.3390/electronics10121456 - 18 Jun 2021
Cited by 16 | Viewed by 2319
Abstract
The incorporation of real and reactive power control of solar photovoltaic (PV) inverters has received significant interest as an onsite countermeasure to the voltage rise problem. This paper presents a comprehensive analysis of the involvement of active power curtailment and reactive power absorption [...] Read more.
The incorporation of real and reactive power control of solar photovoltaic (PV) inverters has received significant interest as an onsite countermeasure to the voltage rise problem. This paper presents a comprehensive analysis of the involvement of active power curtailment and reactive power absorption techniques of solar PV inverters for voltage regulation in medium voltage (MV) distribution networks. A case study has been conducted for a generic MV distribution network in Malaysia, demonstrating the effectiveness of fixed power factor control, Volt–Var, and Volt–Watt controls in mitigating overvoltage issues that have arisen due to the extensive integration of solar PV systems. The results revealed that the incorporation of real and reactive power controls of solar PV inverters aids in successfully mitigating overvoltage issues and support network operating conditions. Furthermore, the comparative analysis demonstrated the importance of employing the most appropriate control technique for improved network performance. Full article
(This article belongs to the Special Issue Strength and Stability of Renewable Energy Systems: Challenges and Solutions)
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Review

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14 pages, 957 KiB  
Review
An Overview of System Strength Challenges in Australia’s National Electricity Market Grid
by Li Yu, Ke Meng, Wang Zhang and Yuchen Zhang
Electronics 2022, 11(2), 224; https://doi.org/10.3390/electronics11020224 - 11 Jan 2022
Cited by 13 | Viewed by 3727
Abstract
The national electricity market (NEM) of Australia is reforming via the rapid uptake of variable renewable energy (VRE) integration concurrent with the retirement of conventional synchronous generation. System strength has emerged as a prominent challenge and constraint to power system stability and ongoing [...] Read more.
The national electricity market (NEM) of Australia is reforming via the rapid uptake of variable renewable energy (VRE) integration concurrent with the retirement of conventional synchronous generation. System strength has emerged as a prominent challenge and constraint to power system stability and ongoing grid connection of VRE such as solar and wind. In order to facilitate decarbonization pathways, Australia is the first country to evolve system strength and inertia frameworks and assessment methods to accommodate energy transition barriers, and other parts of the world are now beginning to follow the same approach. With the evolvement of the system strength framework as a new trending strategy to break the transition barriers raised by renewable energy project development and grid connection studies, this paper provides a high-level overview of system strength, covering such fundamental principles as its definition, attributes, and manifestations, as well as industry commentary, cutting-edge technologies and works currently underway for the delivery of a secure and reliable electricity system with the rapid integration of inverter-based resources (IBRs) in the NEM grid. The intent of this study is to provide a comprehensive reference on the engineering practices of the system strength challenge along with complementary technical, regulatory, and industry perspectives. Full article
(This article belongs to the Special Issue Strength and Stability of Renewable Energy Systems: Challenges and Solutions)
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