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Energies
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High-Performance Power Converters and Inverters
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High-Performance Power Converters and Inverters

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

Deadline for manuscript submissions: closed (16 August 2023) | Viewed by 5724

Special Issue Editors

Prof. Dr. Sergio Vazquez Perez

E-Mail Website
Guest Editor
Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Interests: power electronics systems; modeling, modulation and control of power electronics; converters applied to renewable energy technologies
Special Issues, Collections and Topics in MDPI journals
Dr. Abraham Marquez Alcaide

E-Mail Website
Guest Editor
Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Interests: modulation techniques; multilevel converters; model-based predictive control of power converters and drives; renewable energy sources; power devices lifetime extension
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Power converters are key elements in the current energy scenario. New power converter topologies, control strategies and modulation techniques are in continuous development by both academia and industry. In addition, silicon carbide and gallium nitride power device technologies are called upon to substitute the traditional silicon power devices in a future not so far away. In this sense, high performance and high reliability are key characteristics in power converter design.

Topics of interest include, but are not limited to, the following:

  • Converter topologies for high-performance power converters;
  • Converters for renewable energy applications;
  • Converters for grid-connected applications such as active front-end, active filter, STATCOM, FACTS, smart transformers, etc.;
  • Converters for high-voltage DC transmission systems;
  • New modulation and control strategies for high-performance power converters;
  • Fault tolerant capability of high-performance power converters;
  • Active lifespan management methods for high-performance power converters;
  • Artificial Intelligence techniques to improve power converters’ performance

Prof. Dr. Sergio Vazquez Perez
Dr. Abraham Marquez Alcaide
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

  • AC–DC power conversion
  • DC–AC power conversion
  • fault tolerance capability
  • power converter reliability
  • advanced control and artificial intelligence techniques

Published Papers (3 papers)

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Research

12 pages, 4227 KiB  
Article
High-Performance Charge Pump Regulator with Integrated CMOS Voltage Sensing Control Circuit
by Chan-Soo Lee, Ayodeji Matthew Monebi, Dansran Bayarsaikhan, Songyuan Xu, Bierng-Chearl Ahn and In-Sung Lee
Energies 2023, 16(12), 4577; https://doi.org/10.3390/en16124577 - 7 Jun 2023
Viewed by 2115
Abstract
This paper introduces a design for a charge pump DC-DC boost regulator with an integrated low-voltage control circuit. With a charge pump and feedback circuits implemented in 0.35 µm CMOS technology, the proposed DC-DC boost regulator offers an efficient device solution for low-power [...] Read more.
This paper introduces a design for a charge pump DC-DC boost regulator with an integrated low-voltage control circuit. With a charge pump and feedback circuits implemented in 0.35 µm CMOS technology, the proposed DC-DC boost regulator offers an efficient device solution for low-power applications. The proposed design employs an error amplifier, oscillator, and comparator in the control circuit which is designed with a supply voltage of 1.8–3.5 V and 2 MHz frequency. Stability is obtained via a pole-zero compensation in the feedback circuit. The charge pump regulator with four pump stages and the whole regulator circuit are analyzed using the Cadence simulation tool. Measurements of the fabricated 0.35 µm CMOS regulator show that the transient time of the error amplifier is controlled within 1.0 µsec and the output voltage is accurately controlled from 7.8 V to 9.4 V with 27–38 mV ripple and 4.5 mA maximum current. Full article
(This article belongs to the Special Issue High-Performance Power Converters and Inverters)
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21 pages, 2135 KiB  
Article
Harmonic Impedance Model of Multiple Utility-Interactive Multilevel Photovoltaic Inverters
by Christian A. Rojas, Samir Kouro, Ruben Inzunza, Yasuaki Mitsugi and Abraham M. Alcaide
Energies 2022, 15(24), 9462; https://doi.org/10.3390/en15249462 - 14 Dec 2022
Cited by 4 | Viewed by 1611
Abstract
An important requirement of the power grid with high penetration of renewable energy sources is the mitigation of potential harmonic interactions between different distributed large grid-tie inverters and the mains. This work presents the harmonic interaction between multiple multilevel photovoltaic (PV) inverters based [...] Read more.
An important requirement of the power grid with high penetration of renewable energy sources is the mitigation of potential harmonic interactions between different distributed large grid-tie inverters and the mains. This work presents the harmonic interaction between multiple multilevel photovoltaic (PV) inverters based on the well-known T-type neutral-point-clamped inverter (3L-TNPC). The multiple 3L-TNPC is connected in parallel to a common ac bus by using distribution voltage feeders. The analysis is performed by using the Norton equivalence model of each power circuit, its admittance matrix modeling, and the potential overall impedance resonances with the ac grid. The main contribution of this work is the development of a current harmonic injection model of the system operating under a polluted voltage grid for harmonic analysis, while overall filtering design restrictions due to impedance limits based on current and voltage standards are considered. The proposed impedance Norton model is compared with the electromagnetic transient model (EMT model) by using comprehensive simulations, showing good match between both models. Full article
(This article belongs to the Special Issue High-Performance Power Converters and Inverters)
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17 pages, 11873 KiB  
Article
Reducing Circling Currents in a VHF Class Φ2 Inverter Based on a Fully Analytical Loss Model
by Desheng Zhang, Run Min, Zhigang Liu, Qiaoling Tong, Qiao Zhang, Ting Wu, Ming Zhang and Aosong Zhou
Energies 2022, 15(22), 8572; https://doi.org/10.3390/en15228572 - 16 Nov 2022
Cited by 1 | Viewed by 1202
Abstract
This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of a class Φ2 inverter. Firstly, analytical expression of the switching node voltage is derived by analyzing its harmonic components. Based on the result, the [...] Read more.
This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of a class Φ2 inverter. Firstly, analytical expression of the switching node voltage is derived by analyzing its harmonic components. Based on the result, the power switch is modeled as a voltage source, where the circuit is simplified to a linear network and analytical expressions of branch currents are solved. Secondly, root mean square (RMS) values of branch currents and component losses are calculated to form the analytical loss model for a Φ2 inverter. The influence of circuit parameters on the circling current and power efficiency are thoroughly analyzed, which derives optimal design constraints to reduce circling currents of a class Φ2 inverter. Furthermore, detailed design guidance and equations are provided to calculate circuit parameters of a class Φ2 inverter, which reduces its circling currents and improves overall power efficiency. Finally, a class Φ2 inverter prototype is built, and experimental results demonstrate a 7% efficiency improvement compared to conventional empirical design methods. Full article
(This article belongs to the Special Issue High-Performance Power Converters and Inverters)
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