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Inventions
Special Issues
Advances in Grid Integration of Renewable Energy Systems
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Advances in Grid Integration of Renewable Energy Systems

A special issue of Inventions (ISSN 2411-5134). This special issue belongs to the section "Inventions and Innovation in Electrical Engineering/Energy/Communications".

Deadline for manuscript submissions: closed (30 September 2020) | Viewed by 23667

Special Issue Editors

Prof. Dr. Surya Santoso

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Guest Editor
Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712, USA
Interests: power quality; power system modeling; power system simulation; distributed generation; renewable energy; photovoltaics; wind turbine; energy storage
Special Issues, Collections and Topics in MDPI journals
Dr. Pisitpol Chirapongsananurak

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Guest Editor
Department of Electrical Engineering, Chulalongkorn University, Bangkok, Thailand
Interests: power quality; power system dynamics and control; power system modeling and simulation; distributed generation; renewable energy; photovoltaics; wind turbine; energy storage; smart grid
Special Issues, Collections and Topics in MDPI journals
Dr. Harsha Vardhana Padullaparti

E-Mail Website
Guest Editor
Power Systems Engineering Center, National Renewable Energy Laboratory (NREL), Golden, CO 80401, USA
Interests: sustainable infrastructure; renewable energy; grid modernization; advanced distribution management systems (ADMSs); distributed energy resource management systems (DERMSs); AI/ML algorithms and optimization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Increasing penetration of renewable energy sources, such as photovoltaics and wind power generation, raises concerns regarding their impacts on a power system. Although renewable energy generation can reduce peak load demand and losses in a distribution circuit, these renewable energy sources may cause power quality and protection issues in a system, such as voltage regulation, flicker, short-circuit fault current contribution, and protection coordination. In addition, incorporating renewable energy sources in a small system like a microgrid may also cause stability problems due to insufficient system inertia. Additional equipment, such as capacitor banks, voltage regulators, static var compensators (SVCs), static synchronous compensators (STATCOMs), and energy storage systems, may be required to provide enhanced voltage regulation. New protection schemes may be developed to mitigate protection issues. Additional control schemes for energy storage systems, such as virtual inertia and damping, may be employed to enhance system stability. This Special Issue of Inventions will include (but is not limited to) the following topics of interest:

  • Potential of renewable energy resources;
  • Forecasting wind and solar power generation;
  • Economics in integrating renewable energy sources in power systems;
  • Advances in technologies of renewable energy systems, voltage regulating devices, energy storage systems, and energy management systems;
  • Modeling and simulation of renewable energy systems for power flow, harmonics, fault, dynamic stability, and electromagnetic transient studies;
  • Operation and control strategies for renewable energy systems, voltage regulating devices, and energy storage systems;
  • Impacts of renewable energy systems, including voltage regulation, reverse power flow, system loss, short-circuit contribution, protection coordination, harmonic distortion, frequency response, and system stability;
  • Maximum capacity of renewable energy systems that can be integrated into a power system;
  • Grid code for integration of renewable energy systems;
  • Mitigating the impacts of high penetration of renewable energy systems with the help of control of renewable energy sources, voltage regulating devices, energy storage systems, and distributed energy resource management systems (DERMS);
  • Optimal placement and sizing of renewable energy sources, voltage regulating devices, and energy storage systems for conservation voltage reduction (CVR), voltage regulation, and loss minimization.

Prof. Surya Santoso
Dr. Pisitpol Chirapongsananurak
Dr. Harsha Vardhana Padullaparti
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. Inventions 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 1800 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 generations (DGs)
  • Renewable energy sources (RESs)
  • Photovoltaics (PVs)
  • Wind turbines (WTs)
  • Energy storage systems (ESSs)
  • Voltage regulating devices
  • Distributed energy resource management systems (DERMSs)

Published Papers (3 papers)

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Research

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17 pages, 6591 KiB  
Article
A Topology of DC-DC Converter Based on Multi-Winding Transformer for Grid Integration of Multiple Renewable Energy Resources
by Mohammad Jafari and Zahra Malekjamshidi
Inventions 2020, 5(3), 31; https://doi.org/10.3390/inventions5030031 - 09 Jul 2020
Cited by 3 | Viewed by 4606
Abstract
This paper presents a topology of a multi-port phase shift converter for integration with a photovoltaic (PV) system, a wind turbine generator, and a battery to supply a grid-connected domestic load. The main advantage of the topology is using a multi-winding high-frequency transformer [...] Read more.
This paper presents a topology of a multi-port phase shift converter for integration with a photovoltaic (PV) system, a wind turbine generator, and a battery to supply a grid-connected domestic load. The main advantage of the topology is using a multi-winding high-frequency transformer (MWHFT) to integrate the input and outputs of the system. In contrast with the case of using a common electrical bus, using MWHFT presents several advantages, such as isolating the converter ports, the easier matching of different voltage levels of the converter ports by adjusting turns ratio, simpler power flow control between the converter ports by applying leading or lagging phase shift angles, and eliminating the leakage current flow through the PV panels from the utility grid. A detailed analysis of the proposed topology and the control system is presented. A numerical simulation of the proposed system is carried out to confirm the system operation and control technique. The experimental tests have been conducted on a prototype converter to approve the proposed system performance. Full article
(This article belongs to the Special Issue Advances in Grid Integration of Renewable Energy Systems)
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Review

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35 pages, 1649 KiB  
Review
Review of Fuel Cell Technologies and Applications for Sustainable Microgrid Systems
by Daniel Akinyele, Elijah Olabode and Abraham Amole
Inventions 2020, 5(3), 42; https://doi.org/10.3390/inventions5030042 - 19 Aug 2020
Cited by 101 | Viewed by 9337
Abstract
The shift from centralized to distributed generation and the need to address energy shortage and achieve the sustainability goals are among the important factors that drive increasing interests of governments, planners, and other relevant stakeholders in microgrid systems. Apart from the distributed renewable [...] Read more.
The shift from centralized to distributed generation and the need to address energy shortage and achieve the sustainability goals are among the important factors that drive increasing interests of governments, planners, and other relevant stakeholders in microgrid systems. Apart from the distributed renewable energy resources, fuel cells (FCs) are a clean, pollution-free, highly efficient, flexible, and promising energy resource for microgrid applications that need more attention in research and development terms. Furthermore, they can offer continuous operation and do not require recharging. This paper examines the exciting potential of FCs and their utilization in microgrid systems. It presents a comprehensive review of FCs, with emphasis on the developmental status of the different technologies, comparison of operational characteristics, and the prevailing techno-economic barriers to their progress and the future outlook. Furthermore, particular attention is paid to the applications of the FC technologies in microgrid systems such as grid-integrated, grid-parallel, stand-alone, backup or emergency power, and direct current systems, including the FC control mechanisms and hybrid designs, and the technical challenges faced when employing FCs in microgrids based on recent developments. Microgrids can help to strengthen the existing power grid and are also suitable for mitigating the problem of energy poverty in remote locations. The paper is expected to provide useful insights into advancing research and developments in clean energy generation through microgrid systems based on FCs. Full article
(This article belongs to the Special Issue Advances in Grid Integration of Renewable Energy Systems)
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36 pages, 2742 KiB  
Review
Modeling and Optimization of Energy Hubs: A Comprehensive Review
by Azadeh Maroufmashat, Syed Taha Taqvi, Amir Miragha, Michael Fowler and Ali Elkamel
Inventions 2019, 4(3), 50; https://doi.org/10.3390/inventions4030050 - 23 Aug 2019
Cited by 38 | Viewed by 9268
Abstract
The concept of energy hubs has grown in prominence as a part of future energy systems, driven by the spread of Distributed Energy Resources (DERs) and the inception of the smart grid. This paper systematically reviews 200 articles about energy hubs, published from [...] Read more.
The concept of energy hubs has grown in prominence as a part of future energy systems, driven by the spread of Distributed Energy Resources (DERs) and the inception of the smart grid. This paper systematically reviews 200 articles about energy hubs, published from 2007 to 2017, and summarizes them based on their modeling approach, planning and operation, economic and environmental considerations, and energy hub applications. The common applications of energy hubs are considered, such as distributed energy resources, the consideration of Plug-in Hybrid Electric Vehicles (PHEVs), and the hydrogen economy. This paper examines modeling approaches towards energy hubs, including storage and its network models; it mentions some of the optimization strategies used to tackle the efficient operation and control of energy hubs. The novelty of this work lies in the classification of research papers related to energy hubs, the development of a generic framework for modeling these multiple energy flow carriers with storage and network considerations, and the provision of solution techniques in line with energy hub optimization. Full article
(This article belongs to the Special Issue Advances in Grid Integration of Renewable Energy Systems)
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