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Electronics
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Power Electronics and Control of High-Speed Electrical Drives
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Power Electronics and Control of High-Speed Electrical Drives

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

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 8337

Special Issue Editors

Prof. Dr. Giampaolo Buticchi

E-Mail Website
Guest Editor
Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham, Ningbo 315104, China
Interests: DC distribution systems and power electronics for the more electric aircraft; high performance electric drives
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Emilio Lorenzani

E-Mail Website
Guest Editor
Department of Science and Methods for Engineering, University of Modena and Reggio Emilia, 42121 Reggio Emilia, Italy
Interests: power converters for renewable energies sources; high performance electric drives
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Interest in high-speed machines electrical drives has increased in recent years, together with the need to increase the speed of electrical machines characterized by a high number of pole pair thanks to the use of different flux-weakening techniques. We find applications of these drives in the distribution grid of the more electric aircraft, in high-speed actuators, in electric turbochargers for internal combustion engines, in direct-drive large generators for wind energy conversion systems, in high-performance electric drives for the industrial and robotics fields, and so on.

In all cases, there is the need to supply the electrical machine with a high fundamental frequency current, raising critical issues for power electronics and the inner current loops of the electrical drives. To obtain a good phase current control with low harmonics distortion, the switching frequency should be increased, or the architecture of the current loops should be modified to expand the bandwidth with limited switching frequency.

The goal is to minimize torque ripple and electrical machines’ power losses with the aid of suitable flux-weakening techniques, if needed and applicable to that kind of electrical machine.

In addition to specific controls, the aforementioned issues can be addressed with wide band-gap devices and/or multilevel topologies that allow decreasing the harmonic phase current distortion with suitable switching strategies for the command of power transistors.

Finally, studies can also focus on power converters solutions characterized by soft-switching commutations and/or a reduction of output common-mode voltage variations.

Prof. Dr. Giampaolo Buticchi
Prof. Dr. Emilio Lorenzani
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. Electronics 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 2400 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

  • High-speed electrical drives
  • Flux-weakening strategies
  • Wide band-gap devices
  • Power converter topologies
  • Multilevel topologies
  • Soft switching techniques
  • Current control
  • High pole pair machines
  • Common-mode current
  • Bearing current

Published Papers (3 papers)

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Research

16 pages, 18435 KiB  
Article
A Simple Virtual-Vector-Based PWM Formulation for Multilevel Three-Phase Neutral-Point-Clamped DC–AC Converters including the Overmodulation Region
by Sergio Busquets-Monge
Electronics 2022, 11(4), 641; https://doi.org/10.3390/electronics11040641 - 18 Feb 2022
Cited by 4 | Viewed by 1507
Abstract
Neutral-point-clamped (NPC) power conversion topologies are among the most popular multilevel topologies in current industrial products and in industrial and academic research. The proper operation of multilevel three-phase NPC DC–AC converters requires the use of specific pulse-width modulation (PWM) strategies that maintain the [...] Read more.
Neutral-point-clamped (NPC) power conversion topologies are among the most popular multilevel topologies in current industrial products and in industrial and academic research. The proper operation of multilevel three-phase NPC DC–AC converters requires the use of specific pulse-width modulation (PWM) strategies that maintain the DC-link capacitor voltage balance and concurrently optimize various performance factors such as efficiency and harmonic distortion. Although several such PWM strategies have been proposed in the literature, their formulation is often complex and/or covers only particular cases and operating conditions. This manuscript presents a simple formulation of the original virtual-vector-based PWM, which enables capacitor voltage balance in every switching cycle. The formulation is presented, for the general case, in terms of basic phase voltage modulating signals, with no reference to space vectors, involving any number of levels and for any operating conditions, including the overmodulation region. The equivalence of the presented formulation to the original PWM strategy is demonstrated through simulation under different scenarios and operating conditions. Thus, this manuscript offers in a one-stop source a simple, effective, and comprehensive PWM formulation to operate multilevel three-phase NPC DC–AC converters with any number of levels in any operating condition. Full article
(This article belongs to the Special Issue Power Electronics and Control of High-Speed Electrical Drives)
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23 pages, 11246 KiB  
Article
Virtual Synchronous Generator Using an Intelligent Controller for Virtual Inertia Estimation
by Kuang-Hsiung Tan, Faa-Jeng Lin, Tzu-Yu Tseng, Meng-Yang Li and Yih-Der Lee
Electronics 2022, 11(1), 86; https://doi.org/10.3390/electronics11010086 - 28 Dec 2021
Cited by 5 | Viewed by 2386
Abstract
Virtual synchronous generators (VSGs) with inertia characteristics are generally adopted for the control of distributed generators (DGs) in order to mimic a synchronous generator. However, since the amount of virtual inertia in VSG control is usually constant and given by trial and error, [...] Read more.
Virtual synchronous generators (VSGs) with inertia characteristics are generally adopted for the control of distributed generators (DGs) in order to mimic a synchronous generator. However, since the amount of virtual inertia in VSG control is usually constant and given by trial and error, the real power and frequency oscillations of a battery energy storage system (BESS) occurring under load variation result in the degradation of the control performance of the DG. Thus, in this study, a novel virtual inertia estimation methodology is proposed to estimate suitable values of virtual inertia for VSGs and to suppress the real power output and frequency oscillations of the DG under load variation. In addition, to improve the function of the proposed virtual inertia estimator and the transient responses of the real power output and frequency of the DG, an online-trained Petri probabilistic wavelet fuzzy neural network (PPWFNN) controller is proposed to replace the proportional integral (PI) controller. The network structure and the online learning algorithm using backpropagation (BP) of the proposed PPWFNN are represented in detail. Finally, on the basis of the experimental results, it can be concluded that superior performance in terms of real power output and frequency response under load variation can be achieved by using the proposed virtual inertia estimator and the intelligent PPWFNN controller. Full article
(This article belongs to the Special Issue Power Electronics and Control of High-Speed Electrical Drives)
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16 pages, 4151 KiB  
Article
Co-Simulation Analysis for Performance Prediction of Synchronous Reluctance Drives
by Vasyl Varvolik, Dmytro Prystupa, Giampaolo Buticchi, Sergei Peresada, Michael Galea and Serhiy Bozhko
Electronics 2021, 10(17), 2154; https://doi.org/10.3390/electronics10172154 - 03 Sep 2021
Cited by 7 | Viewed by 2728
Abstract
To improve the design of electric drives and to better predict the system performance, numerical simulation has been widely employed. Whereas in the majority of the approaches, the machines and the power electronics are designed and simulated separately, to improve the fidelity, a [...] Read more.
To improve the design of electric drives and to better predict the system performance, numerical simulation has been widely employed. Whereas in the majority of the approaches, the machines and the power electronics are designed and simulated separately, to improve the fidelity, a co-simulation should be performed. This paper presents a complete coupled co-simulation model of synchronous reluctance machine (SynRel) drive, which includes the finite element model of the SynRel, the power electronics inverter, the control system, and application examples. The model of SynRel is based on a finite element model (FEM) using Simcenter MagNet. The power electronics inverter is built using PLECS Blockset, and the drive control model is built in Simulink environment, which allows for coupling between MagNet and PLECS. The proposed simulation model provides high accuracy thanks to the complete FEA-based model fed by actual inverter voltage. The comparison of the simulation results with experimental measurements shows good correspondence. Full article
(This article belongs to the Special Issue Power Electronics and Control of High-Speed Electrical Drives)
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