Special Issue "State-of-the-art Power Electronics in Korea"

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: 31 October 2021.

Special Issue Editors

Prof. Dr. Kyo-Beum Lee
Website
Guest Editor
Department of Electrical and Computer Engineering, Ajou University, World cup-row 206, Yeongtong-gu, Suwon 16499, Korea
Interests: power electronics; electric machine drives; wind and solar energy systems; electric vehicle applications
Special Issues and Collections in MDPI journals
Dr. Sungjoon Cho
Website
Guest Editor
Department of Electrical and Computer Engineering, Ajou University, World cup-row 206, Yeongtong-gu, Suwon 16499, Korea
Interests: high-power converters; traction inverters for trains; AC drives; renewable energy power conversion systems

Special Issue Information

Dear Colleagues,

The demand for power electronics technologies has continuously increased over the last decade. Advances in the industry applications of power electronics have been made possible by various research results. Power converter and motor control technologies have been applied to electric vehicles and industrial drive systems. Research into renewable systems and HVDC can contribute to grid reliability and efficient power generation. Moreover, novel technologies such as wide-bandgap devices can improve power density and power conversion system efficiency.

This Special Issue is focused on state-of-the-art power electronics in Korea. It will include novel research results about technologies such as power converters, motor drives, and smart grids. Attention will also be paid to their various industry applications.

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

  • Power converters (topologies, control, and analysis);
  • Motor drives;
  • HVDC applications;
  • Multimodular converters;
  • Renewable energy applications (wind, photovoltaic, and fuel cell);
  • Electric vehicle applications;
  • Microgrid and smart grid applications;
  • Energy storage systems;
  • Wide-bandgap device applications;
  • Wireless power transfer applications;
  • Condition monitoring and reliability.

Prof. Dr. Kyo-Beum Lee
Dr. Sungjoon Cho
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 papers will be 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. Electronics is an international peer-reviewed open access monthly 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 1500 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.

Published Papers (1 paper)

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Research

Open AccessFeature PaperEditor’s ChoiceArticle
Four-Level Hysteresis-Based DTC for Torque Capability Improvement of IPMSM Fed by Three-Level NPC Inverter
Electronics 2020, 9(10), 1558; https://doi.org/10.3390/electronics9101558 - 23 Sep 2020
Abstract
Direct torque control (DTC) is considered one of the simplest and fastest control strategies used in motor drives. However, it produces large torque and flux ripples. Replacing the conventional two-level hysteresis torque controller (HTC) with a four-level HTC for a three-level neutral-point clamped [...] Read more.
Direct torque control (DTC) is considered one of the simplest and fastest control strategies used in motor drives. However, it produces large torque and flux ripples. Replacing the conventional two-level hysteresis torque controller (HTC) with a four-level HTC for a three-level neutral-point clamped (NPC) inverter can reduce the torque and flux ripples in interior permanent magnet synchronous motor (IPMSM) drives. However, the torque will not be controlled properly within the upper HTC bands when driving the IPMSM in the medium and high-speed regions. This problem causes the stator current to drop, resulting in poor torque control. To resolve this problem, a simple algorithm based on a torque error average calculation is proposed. Firstly, the proposed algorithm reads the information of the calculated torque and the corresponding torque reference to calculate the torque error. Secondly, the average value of torque error is calculated instantaneously as the reference torque changes. Finally, the average value of the torque error is used to indicate the operation of the proposed algorithm without the need for motor speed information. By using the proposed algorithm, the torque can be controlled well in all speed regions, and thus, a better stator current waveform can be obtained. Simulation and experimental results validate the effectiveness of the proposed method. Full article
(This article belongs to the Special Issue State-of-the-art Power Electronics in Korea)
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