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Energies
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High Penetration of Renewables in Power Systems: Challenges and Solutions
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High Penetration of Renewables in Power Systems: Challenges and Solutions

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A: Sustainable Energy".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 3226

Special Issue Editors

Dr. Mohit Bajaj

E-Mail Website
Guest Editor
Department of Electrical Engineering, Graphic Era (Deemed to be University), Dehradun 248002, India
Interests: electric vehicles; renewable energy sources; distributed generation; power quality; smart grids
Dr. Padmanabh Thakur‬

E-Mail Website
Guest Editor
Department of Electrical Engineering, Graphic Era (Deemed to be University), Dehradun 248002, India
Interests: power system; renewable energy; power quality
Dr. Olena Rubanenko

E-Mail Website
Guest Editor
Research and Innovation Centre for Electrical Engineering, University of West Bohemia, 301 00 Pilsen, Czech Republic
Interests: solar power; neuro-fuzzy; renewable energy technologies; microgrid
Special Issues, Collections and Topics in MDPI journals
Dr. Arvind R. Singh

E-Mail Website
Guest Editor
Department of Electrical, Electronics and Computer Engineering, University of Pretoria, Hatfield, Gauteng, South Africa
Interests: power system; renewable energy resources; microgrid energy management; DSM and DR; numerical relaying; power system protection

Special Issue Information

Dear Colleagues,

The high penetration of renewable energy in power systems could resolve the rising energy demands while also reducing fossil fuel consumption, as well as providing economic and technical merits. However, high penetration brings challenges such as harmonic distortion, distribution cable overloading, over-voltage, significant uncertainty, high fault current, and insufficient generating reserves and protection difficulties. Technologies that can overcome such challenges play an important role in increasing the renewable hosting capacity of distribution networks.

To address these difficulties, cutting-edge technology, such as various control strategies for DG systems, optimization approaches, energy storage devices, harmonic compensators, power-quality enhancement devices, and fault current limiters are used. A seamless grid integrating the operation of renewable energy systems with better performance characteristics is the primary focus of research in both industries, as well as academia, at present.

The objective of this Special Issue is to serve as a single platform to bring together important original research and review works that focus on the challenges associated with the high renewable penetration in power systems, as well as discussing the solutions to total inertia reduction, low fault ride-through abilities, high uncertainties, voltage and frequency fluctuations, low power quality, harmonic distortions, feeder overloading, etc.

Dr. Mohit Bajaj
Dr. Padmanabh Thakur‬
Dr. Olena Rubanenko
Dr. Arvind R. Singh
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. 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

  • harmonic compensation techniques
  • interfacing inverter control
  • energy storage systems
  • grid-forming control techniques
  • fault ride-through issues
  • optimization techniques
  • power quality improvement techniques
  • custom power devices
  • hosting capacity enhancement
  • multifunctional distributed generation system
  • automatic generation control
  • design, analysis, and control of electrical machines for wind power
  • generation applications
  • real-time simulation of renewable sources

Published Papers (2 papers)

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Research

19 pages, 22834 KiB  
Article
A Comprehensive Analysis of the Penetration of Detailed Type 4 Wind Turbine Generators in the Two-Area Benchmark System
by Rodrigo Trentini, Rüdiger Kutzner, John J. A. Saldanha, Ademir Nied, Tiago Jackson May Dezuo and Mariana Santos Matos Cavalca
Energies 2023, 16(13), 4970; https://doi.org/10.3390/en16134970 - 27 Jun 2023
Viewed by 1007
Abstract
The shift towards RES introduces challenges related to power system stability due to the characteristics of inverter-based resources (IBRs) and the intermittent nature of renewable resources. This paper addresses these challenges by conducting comprehensive time and frequency simulations on the IEEE two-area benchmark [...] Read more.
The shift towards RES introduces challenges related to power system stability due to the characteristics of inverter-based resources (IBRs) and the intermittent nature of renewable resources. This paper addresses these challenges by conducting comprehensive time and frequency simulations on the IEEE two-area benchmark power system with detailed type 4 wind turbine generators (WTGs), including turbines, generators, converters, filters, and controllers. The simulations analyse small-signal and transient stability, considering variations in active and reactive power, short-circuit events, and wind variations. Metrics such as rate of change of frequency (RoCoF), frequency nadir, percentage of frequency variation, and probability density function (PDF) are used to evaluate the system performance. The findings emphasise the importance of including detailed models of RES in stability analyses and demonstrate the impact of RES penetration on power system dynamics. This study contributes to a deeper understanding of RES integration challenges and provides insights for ensuring the reliable and secure operation of power systems in the presence of high levels of RES penetration. Full article
(This article belongs to the Special Issue High Penetration of Renewables in Power Systems: Challenges and Solutions)
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22 pages, 20777 KiB  
Article
Assessment of a High-Order Stationary Frame Controller for Two-Level and Three-Level NPC Grid-Connected Inverters
by Nawaf O. Almatani, Abdullah Ali Alhussainy, Sultan Alghamdi, Hossam Kotb, Kareem M. AboRas, Mahendiran Vellingiri and Muhyaddin Rawa
Energies 2022, 15(24), 9313; https://doi.org/10.3390/en15249313 - 8 Dec 2022
Viewed by 1373
Abstract
Most grid-connected DC/AC inverters use traditional proportional–integral (PI) controllers in a synchronous frame. In addition to poor disturbance rejection capabilities, these PI controllers also exhibit steady-state errors for sinusoidal reference signals. To address these drawbacks, this article investigates the use of a high-order [...] Read more.
Most grid-connected DC/AC inverters use traditional proportional–integral (PI) controllers in a synchronous frame. In addition to poor disturbance rejection capabilities, these PI controllers also exhibit steady-state errors for sinusoidal reference signals. To address these drawbacks, this article investigates the use of a high-order controller in the stationary frame and then compares it with the standard PI controller. The effectiveness of the high-order controller in the stationary frame has been examined by providing an infinite gain at a resonance frequency. In this work, the design of high-order and PI controllers and tuning instructions are given. Furthermore, both high-order and PI current-controlled two-level and three-level neutral point clamped (NPC) inverters are compared. Various operational conditions are used for the comparison. The high-order controller reduced the total harmonic distortion (THD) of the injected current by 1.15% for the two-level inverter in normal conditions as compared to the PI controller and 0.9% for the three-level NPC inverters. Furthermore, it reduced the THD in balanced abnormal conditions by 0.5% for the two-level inverter and 0.18% for the three-level NPC inverters. However, the dq controller has a lower THD during unbalance and short circuit conditions. Full article
(This article belongs to the Special Issue High Penetration of Renewables in Power Systems: Challenges and Solutions)
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