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Analysis of the Harmonic Performance of Power Converters and Electrical Drives

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".

Deadline for manuscript submissions: closed (15 October 2020) | Viewed by 12719

Printed Edition Available!
A printed edition of this Special Issue is available here.

Special Issue Editors

Dr. Vito Giuseppe Monopoli

E-Mail Website
Guest Editor
Department of Electrical and Information Engineering, Politecnico di Bari, 70125 Bari, Italy
Interests: multilevel converters; analysis of harmonic distortion produced by power converters and electrical drives; modulation techniques; converter control
Special Issues, Collections and Topics in MDPI journals
Dr. Abraham Marquez

E-Mail Website
Guest Editor
Department of Electronic Engineering, University of Seville, 41092 Seville, Spain
Interests: Modulation Technique; Renewable Energies, Multilevel Convertes; Model Predective Control
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Electronic power converters have progressively reached unimaginable levels of popularity and diffusion in recent years in sectors ranging from electric mobility to renewable sources and smart and efficient energy management. Over the past few decades, an enormous amount of work has been done on modulation techniques for the management of power converters and electric drives, and a great deal of knowledge has been developed in terms of analyzing their harmonic performance. In more recent years, there has been a renewed interest in this topic. In fact, the use of adequate modulation techniques can address issues such as energy efficiency, to which people are now much more sensitive than in the past. Additionally, the optimization of harmonic performance greatly affects the size of the filters and consequently the power density. For this reason, it represents a fundamental element in the race to reduce the weight and size of electronic power converters for electrification in the automotive and aerospace sector. Finally, the optimization of harmonic performance is an excellent tool to encourage an ever more massive penetration of power electronic systems, as it addresses issues related to one of the hot topics of recent years—namely, the reliability of the converters.

Thus, to encourage the discussion and dissemination of these important and current topics, this Special Issue, entitled “Analysis of the Harmonic Performance of Power Converters and Electrical Drives”, has been proposed for the international journal Energies, which is an SSCI and SCIE journal (Impact Factor: 2.707 (2018); 5-Year Impact Factor: 2.990 (2018)). This Special Issue mainly covers original research and studies as well as comprehensive reviews related to the above-mentioned topics. Papers selected for this Special Issue are subject to a rigorous peer review procedure with the aim of rapid and wide dissemination of research results, developments, and applications.

I am writing to invite you to submit your original work to this Special Issue. I look forward to receiving your outstanding research.

Dr. Vito Giuseppe Monopoli
Dr. Abraham Marquez
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

  • total harmonic distortion (THD)
  • power quality (PQ)
  • harmonics
  • pulse-width modulation (PWM)
  • harmonic distortion
  • modulation techniques
  • power converters
  • electrical drives
  • harmonic analysis

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Published Papers (5 papers)

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Research

17 pages, 7406 KiB  
Article
Common-Mode Voltage Harmonic Reduction in Variable Speed Drives Applying a Variable-Angle Carrier Phase-Displacement PWM Method
by Abraham Marquez Alcaide, Vito Giuseppe Monopoli, Xuchen Wang, Jose I. Leon, Giampaolo Buticchi, Sergio Vazquez, Marco Liserre and Leopoldo G. Franquelo
Energies 2021, 14(10), 2929; https://doi.org/10.3390/en14102929 - 19 May 2021
Cited by 2 | Viewed by 2769
Abstract
Electric variable speed drives (VSD) have been replacing mechanic and hydraulic systems in many sectors of industry and transportation because of their better performance and reduced cost. However, the electric systems still face the issue of being considered less reliable than the mechanical [...] Read more.
Electric variable speed drives (VSD) have been replacing mechanic and hydraulic systems in many sectors of industry and transportation because of their better performance and reduced cost. However, the electric systems still face the issue of being considered less reliable than the mechanical ones. For this reason, researchers have been actively investigating effective ways to increase the reliability of such systems. This paper is focused on the analysis of the common-mode voltage (CMV) generated by the operation of the VSDs which directly affects to the lifetime and reliability of the complete system. The method is based on the mathematical description of the harmonic spectrum of the CMV depending on the PWM method implementation. A generalized PWM method where the carriers present a variable phase-displacement is developed. As a result of the presented analysis, the CMV reduction is achieved by applying the PWM method with optimal carrier phase-displacement angles without any external component and/or passive filtering technique. The optimal values of the carrier phase-displacement angles are obtained considering the minimization of the CMV total harmonic distortion. The resulting method is easily implementable on mostly off-the-shelf mid-range micro-controller control platforms. The strategy has been evaluated in a scaled-down experimental setup proving its good performance. Full article
(This article belongs to the Special Issue Analysis of the Harmonic Performance of Power Converters and Electrical Drives)
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14 pages, 5489 KiB  
Article
Analysis and Implementation of Multilevel Inverter for Full Electric Aircraft Drives
by Vidhi Patel, Concettina Buccella and Carlo Cecati
Energies 2020, 13(22), 6126; https://doi.org/10.3390/en13226126 - 22 Nov 2020
Cited by 9 | Viewed by 2502
Abstract
In modern aircrafts, hydraulic or pneumatic actuators have been already replaced with electric counterparts, but the advancement of the inverter and motor technology has made possible that the propulsion system can be powered by electrical sources. These high power requirements can not be [...] Read more.
In modern aircrafts, hydraulic or pneumatic actuators have been already replaced with electric counterparts, but the advancement of the inverter and motor technology has made possible that the propulsion system can be powered by electrical sources. These high power requirements can not be efficiently fulfilled by using a typical two level converter; the multi-level converter represents a suitable solution for this application. This paper presents a cascaded H-bridge, a 9-level permanent magnet synchronous motor drive for full electric aircrafts. Harmonic analysis is presented considering different levels of a multi-level inverter. Simulation results and experimental validation with a test-rig confirms the accuracy of the proposed system. Full article
(This article belongs to the Special Issue Analysis of the Harmonic Performance of Power Converters and Electrical Drives)
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22 pages, 2720 KiB  
Article
Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control
by Malte John and Axel Mertens
Energies 2020, 13(21), 5823; https://doi.org/10.3390/en13215823 - 6 Nov 2020
Cited by 2 | Viewed by 2244
Abstract
Power electronic converters, together with their loads, sources, and controls, form a coupled system that includes many nonlinear interactions, for instance due to pulse-width modulation (PWM) and feedback control. In this paper we develop a complete, nonlinear modeling approach for voltage-source inverters in [...] Read more.
Power electronic converters, together with their loads, sources, and controls, form a coupled system that includes many nonlinear interactions, for instance due to pulse-width modulation (PWM) and feedback control. In this paper we develop a complete, nonlinear modeling approach for voltage-source inverters in the frequency domain, taking into account the harmonic components introduced into the system from the inputs and from the nonlinear digital PWM. The most important contribution is a method for analyzing how these harmonics propagate through the nonlinear system in steady state. To enable this, an analytic model of PWM with arbitrary, multiple-frequency input is necessary. A revised model of Asymmetrical regularly-sampled double-edge PWM (AD-PWM) is proposed and its incorporation into the system model regarding sampling effects is discussed. The resulting nonlinear equation system is numerically and simultaneously solved, yielding the spectra of all relevant signals in the converter. The results are validated with time-domain simulations and with measurements, proving the effectiveness of the proposed approach. Full article
(This article belongs to the Special Issue Analysis of the Harmonic Performance of Power Converters and Electrical Drives)
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18 pages, 2222 KiB  
Article
Coordinated Control of Active and Reactive Power Compensation for Voltage Regulation with Enhanced Disturbance Rejection Using Repetitive Vector-Control
by Felipe J. Zimann, Eduardo V. Stangler, Francisco A. S. Neves, Alessandro L. Batschauer and Marcello Mezaroba
Energies 2020, 13(11), 2812; https://doi.org/10.3390/en13112812 - 2 Jun 2020
Cited by 5 | Viewed by 2442
Abstract
Voltage profile is one of many aspects that affect power quality in low-voltage distribution feeders. Weak grids have a typically high line impedance which results in remarkable voltage drops. Distribution grids generally have a high R/X ratio, which makes voltage regulation with reactive [...] Read more.
Voltage profile is one of many aspects that affect power quality in low-voltage distribution feeders. Weak grids have a typically high line impedance which results in remarkable voltage drops. Distribution grids generally have a high R/X ratio, which makes voltage regulation with reactive power compensation less effective than in high-voltage grids. Moreover, these networks are more susceptible to unbalance and harmonic voltage disturbances. This paper proposes an enhanced coordinated control of active and reactive power injected in a distribution grid for voltage regulation. Voltage drop mitigation was evaluated with power injection based on local features, such loads and disturbances of each connection. In order to ensure disturbances rejection like harmonic components in the grid voltages, a repetitive vector-control scheme was used. The injection of coordinated active and reactive power with the proposed control algorithm was verified through simulations and experiments, demonstrating that it is a promising alternative for voltage regulation in weak and low-voltage networks subject to inherent harmonic distortion. Full article
(This article belongs to the Special Issue Analysis of the Harmonic Performance of Power Converters and Electrical Drives)
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11 pages, 2736 KiB  
Article
Equivalent Phase Current Harmonic Elimination in Quadruple Three-Phase Drives Based on Carrier Phase Shift Method
by Xuchen Wang, Hao Yan, Giampaolo Buticchi, Chunyang Gu and He Zhang
Energies 2020, 13(11), 2709; https://doi.org/10.3390/en13112709 - 28 May 2020
Viewed by 2136
Abstract
Multiphase drives are entering the spotlight of the research community for transportation applications with their high power density and the possibility of high fault tolerance. The multi three-phase drive is one of the main types of multiphase drives that allows for the direct [...] Read more.
Multiphase drives are entering the spotlight of the research community for transportation applications with their high power density and the possibility of high fault tolerance. The multi three-phase drive is one of the main types of multiphase drives that allows for the direct adoption of commercial three-phase converters and high control flexibility. The elimination of high-frequency current harmonics will reduce the flux linkage harmonics, torque ripple, vibration and noise in machine drives. Therefore, this work introduces a new method to the modelling of equivalent phase current in multi three-phase drives with the double integral Fourier analysis method. A new carrier-based pulse-width modulation (CPWM) method is introduced to reduce the equivalent phase current harmonics by applying proper carrier phase angle to each subsystem in the multi three-phase drives. The proposed angles of carrier signals are analyzed for quadruple three-phase drives, and the corresponding experimental results confirm the significance of the proposed phase-shifted CPWM method to eliminate the equivalent phase current harmonics. Full article
(This article belongs to the Special Issue Analysis of the Harmonic Performance of Power Converters and Electrical Drives)
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