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Power Electronic Converters in Renewable Energy and Active Distribution Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F3: Power Electronics".

Deadline for manuscript submissions: closed (25 November 2021) | Viewed by 1683

Special Issue Editor

Department of Engineering and Design, Electrical & Computer Engineering, Western Washington University, 98225 Bellingham, WA, USA
Interests: current source converters; HVDC; hybrid ac/dc mcirogrids; microgrids; multilevel converters; photovoltaic; power conveters; voltage source converters; weak grids; wind
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Special Issue Information

Dear Colleagues,

Renewable energy resources are considered the most economic and environmentally-friendly alternative to produce electricity. As most renewable energy resources are intermittent, power electronic converters are used as interfacing devices to regulate the produced power and injected currents. On the load-side, modern power electronics loads are also emerging. This includes all power electronics-interfaced loads such as uninterrupted power supplies, data centers, and vehicle-charging stations. It is anticipated that the future of electric grids will move towards active distribution systems, where power electronics interfaced-loads and generators dominate.

To achieve efficient and reliable operation, several topologies for power electronic converters are implemented, such as voltage source, current source, and multilevel converters. Each topology has its own merits but also introduces technical limitations. Therefore, modeling and stability analysis are required to preserve a stable and efficient performance under different operating conditions.

The main objective of this Special Issue is to address the associated challenges facing power electronic converters in active distribution systems. The topics of this Special Issue inlcude:

  • ac, dc, and hybrid ac–dc microgrids;
  • Weak grid integration;
  • High-voltage dc tranmission (HVDC);
  • Photovoltaic and wind energy integration;
  • Vechile-charging stations;
  • Voltage source converters;
  • Current source converters;
  • Multilevel converters;
  • Dc–dc converters.

Dr. Amr Radwan
Guest Editor

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

  • Microgrids
  • Weak grids
  • Photovoltaic
  • Wind energy
  • HVDC
  • Charging stations.

Published Papers (1 paper)

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Research

18 pages, 14673 KiB  
Article
A Frequency Adaptive Scheme Based on Newton Structure of PRRC for LCL-Type Inverter Connected with Weak Grid
by Chengbi Zeng, Sudan Li, Hanwen Wang and Hong Miao
Energies 2021, 14(14), 4225; https://doi.org/10.3390/en14144225 - 13 Jul 2021
Cited by 4 | Viewed by 1330
Abstract
Repetitive control (RC) is gradually used in inverters tied with weak grid. To achieve the zero steady-state error tracking of inverter current and compensate the harmonic distortion caused by frequency fluctuation, a frequency adaptive (FA) control scheme for LCL-type inverter connected with weak [...] Read more.
Repetitive control (RC) is gradually used in inverters tied with weak grid. To achieve the zero steady-state error tracking of inverter current and compensate the harmonic distortion caused by frequency fluctuation, a frequency adaptive (FA) control scheme for LCL-type inverter connected with weak grid is proposed. This scheme adopts a proportional resonance (PR) controller in parallel with RC (PRRC) to overcome the disadvantages caused by RC inherent one-cycle time delay. A fractional delay (FD) filter based on the Newton structure is proposed to approximate the fraction item of fs/f, where fs and f are sample frequency and grid frequency, respectively. The structure of the proposed FD filter is relatively simple; moreover, coefficients of the filter maintain constant so as not to need online tuning even when grid frequency fluctuates, which decreases the computational burden considerably. The feasibility and effectiveness of the proposed FA control scheme, named as Newton-FAPRRC, are all verified by the simulation and experimental results. Full article
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