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Energies
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Power Electronics Applications in Microgrid and Renewable Energy Systems
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Power Electronics Applications in Microgrid and Renewable Energy Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A1: Smart Grids and Microgrids".

Deadline for manuscript submissions: closed (19 April 2024) | Viewed by 4734

Special Issue Editors

Dr. Xin Meng

E-Mail Website
Guest Editor
College of Electrical Engineering, Sichuan University, Chengdu 610000, China
Interests: grid supporting inverter for microgrid; coordinative control for parallel inverters; high power rectifier for electrolytic hydrogen production
Special Issues, Collections and Topics in MDPI journals
Dr. Shuhan Zhou

E-Mail Website
Guest Editor
College of Electrical Engineering, Sichuan University, Chengdu, China
Interests: multi-module series-parallel technology; model and control of multi-port switching converter

Special Issue Information

Dear Colleagues,

The integration of renewable energy sources into microgrid systems is a pivotal step towards achieving a sustainable and reliable energy future. Power electronics play a central role in enabling the efficient, flexible, and resilient operation of microgrids and renewable energy systems. This Special Issue aims to compile cutting-edge research, innovative solutions, and practical applications of power electronics in microgrid and renewable energy systems.

The topics of interest for this Special Issue are as follows:

We invite contributions on a wide range of topics related to the application of power electronics in microgrids and renewable energy systems, including, but not limited to:

Advanced Inverters and Converters: Novel designs, control algorithms, and topologies for grid-tied and off-grid inverters and converters.

Energy Storage Systems: Integration of energy storage technologies (e.g., batteries, supercapacitors, hydrogen) with power electronics in microgrid systems.

Grid Integration: Strategies and technologies for the seamless integration of renewable energy sources into the grid, including grid-forming inverters.

Distributed Energy Resources (DERs): Control and coordination of DERs within microgrid systems for enhanced reliability and efficiency.

Microgrid Control and Management: Advanced control methods, optimization techniques, and real-time management of microgrid systems.

Harmonics and Power Quality: Mitigation of harmonics and improvement in power quality in microgrids and renewable energy systems.

Fault Detection and Diagnosis: Methods for fault detection, isolation, and diagnosis in power electronics components within microgrid systems.

Resilience and Reliability: Enhancing the resilience and reliability of microgrid systems, including fault-tolerant operation.

We look forward to receiving your valuable contributions and advancing the field of power electronics in microgrid and renewable energy systems.

Dr. Xin Meng
Dr. Shuhan Zhou
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

  • renewable energy
  • microgrid
  • power electronics
  • hydrogen
  • converter

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Published Papers (2 papers)

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Research

14 pages, 4656 KiB  
Article
Research on Hybrid Rectifier for High Power Electrolytic Hydrogen Production Based on Modular Multilevel Converter
by Cheng Huang, Yang Tan and Xin Meng
Energies 2024, 17(9), 2188; https://doi.org/10.3390/en17092188 - 2 May 2024
Cited by 2 | Viewed by 2016
Abstract
Aiming at the problem that silicon-controlled rectifiers (SCR) and pulse width modulation (PWM) rectifiers cannot balance high power levels, high hydrogen production efficiency, and high grid connected quality in the current research on rectifier power supplies for electrolytic hydrogen production, a new hybrid [...] Read more.
Aiming at the problem that silicon-controlled rectifiers (SCR) and pulse width modulation (PWM) rectifiers cannot balance high power levels, high hydrogen production efficiency, and high grid connected quality in the current research on rectifier power supplies for electrolytic hydrogen production, a new hybrid rectifier topology based on a modular multilevel converter (MMC) is proposed. The hybrid topology integrates a silicon-controlled rectifier (SCR) with an auxiliary power converter, wherein the SCR is designated as the primary power source for electrolytic hydrogen production. The auxiliary converter employs a cascaded modular multilevel converter (MMC) and an input-series-output-parallel (ISOP) phase-shifted full-bridge (PSFB) arrangement. This configuration allows the auxiliary converter to effectively mitigate AC-side harmonics and minimize DC-side ripple, concurrently transmitting a small amount of power. The effectiveness of the hybrid rectifier in achieving low ripple and harmonic distortion outputs was substantiated through hardware-in-the-loop experiments. Notably, the hybrid topology is characterized by its enhanced electric-to-hydrogen conversion efficiency, elevated power density, cost efficiency, and improved grid compatibility. Full article
(This article belongs to the Special Issue Power Electronics Applications in Microgrid and Renewable Energy Systems)
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16 pages, 5096 KiB  
Article
A Feedforward Control-Based Power Decoupling Strategy for Grid-Forming Grid-Connected Inverters
by Baojin Liu, Zhaofeng Song, Bing Yu, Gongde Yang and Jinjun Liu
Energies 2024, 17(2), 424; https://doi.org/10.3390/en17020424 - 15 Jan 2024
Cited by 8 | Viewed by 2333
Abstract
Grid-forming inverters, which are represented by droop control and virtual synchronous generator control, have been widely studied and applied because of their excellent grid-supporting ability and smooth off-grid switching. When a grid-forming inverter is connected to a microgrid or utility grid, the control [...] Read more.
Grid-forming inverters, which are represented by droop control and virtual synchronous generator control, have been widely studied and applied because of their excellent grid-supporting ability and smooth off-grid switching. When a grid-forming inverter is connected to a microgrid or utility grid, the control loops of active power and reactive power will be coupled because of the voltage phase difference, which will affect the power control performance. This paper first derives the small-signal linearized model of the system, based on which a frequency feedforward control and an amplitude feedforward control are proposed to decouple the active power and reactive power control loops, respectively. The proposed decoupling strategy directly modifies the reference values through feedforward with an easily implementable principle that is applicable to various control coordinate systems, control coordinate systems, and control structures. By comparing system models with and without the proposed decoupling strategy, its effectiveness can be theoretically proven. Time-domain simulations and hardware experiments are presented to further validate its effectiveness. Full article
(This article belongs to the Special Issue Power Electronics Applications in Microgrid and Renewable Energy Systems)
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