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Advances in Electric Drives and Power Electronics Fields

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A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: closed (15 September 2021) | Viewed by 24388

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Special Issue Editors

Prof. Dr. Sérgio Cruz

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Guest Editor

1. Department of Electrical and Computer Engineering, Instituto de Telecomunicações, University of Coimbra, Pólo 2-Pinhal de Marrocos, P-3030-290 Coimbra, Portugal
2. Instituto de Telecomunicações, Pólo 2-Pinhal de Marrocos, P-3030-290 Coimbra, Portugal
Interests: rotating electric machines; power transformers; electric drives and power electronic converters; fault diagnosis; fault tolerance and digital control
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Dr. André Mendes

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Guest Editor

1. Department of Electrical and Computer Engineering, University of Coimbra, Coimbra, Portugal
2. Instituto de Telecomunicações, Coimbra, Portugal
Interests: fault diagnosis and fault tolerance of electric drives and power electronic converters; wireless power transfer; power electronic transformers; UPS; power quality and digital control
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

At present, electric drives play a key role in a large number of application fields, including industrial applications, electric vehicles, more electric aircraft, aerospace, energy conversion systems, and robotics, among many others. In parallel, the field of power electronics has experienced an impressive technological advancement over the last two decades, being responsible for the operational success of many systems used for different purposes in several areas of society. Always with the objective of increasing their performance, taking into account important objectives such as high power density, high efficiency, high power quality, good reliability, and fault tolerance, electric drives and power electronics have witnessed a growing involvement of the scientific community in the presentation of promising solutions for different purposes. The use of power electronics allows the systems to ensure the operational requirements of the applications and simultaneously guarantee their stability and safety.

This Special Issue aims to collect, present, and disseminate the most recent advances in the areas of electric drives and power electronic converters, in their different fields of application.

Prospective authors are invited to submit original contributions, survey papers, or tutorials for possible publication in this Special Issue. Application-oriented contributions are particularly welcome.

Topics of interest for publication include, but are not limited to:

Advanced control strategies for all types of electric drives and power electronic converters;
Multiphase machines and drives;
Position sensorless control of electric drives;
Model predictive control of electric machines and power electronic converters;
Drives for electric vehicles, more electric aircraft, and wind generators;
Condition monitoring of electric drives and power electronic converters;
Fault-resilient control strategies;
Advanced observers;
Compensation of parameter uncertainties;
New topologies, modulation techniques, and applications of power electronic converters;
Advanced driving/modulation/modelling methods for emerging power electronic devices;
Analysis of device/component failure mechanisms;
Modelling and simulation of passive components (capacitors, batteries, supercapacitors, inductors, etc.);
Power electronics in smart grids, energy storage systems, and E-transportation.

Prof. Dr. Sérgio Cruz
Prof. Dr. André Mendes
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

Electric drives
Power electronic converters
Advanced control strategies
Fault diagnosis
Fault-tolerant control
Power quality

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Published Papers (6 papers)

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Research

19 pages, 4693 KB

Open AccessArticle

Phase Current Measurement Method of Dual Inverter-Motor Drive System Using a Single DC Link Current Sensor

by Seon-Ik Hwang, Seong-Hyeon Cho, Jun-Hyung Jung and Jang-Mok Kim

Energies 2021, 14(18), 5626; https://doi.org/10.3390/en14185626 - 7 Sep 2021

Cited by 2 | Viewed by 3253

Abstract

In recent years, electric propulsion systems have become widely, used and these systems have strict limits in volume and weight. Therefore, it is necessary to reduce the weight of the inverter-motor drive system. In a typical

n

inverter-motor drive system, at least [...] Read more.

n

inverter-motor drive system, at least

2 n

phase current sensors are required. In order to reduce the number of phase current sensors, this paper proposes a method for measuring phase current using

n

DC link current sensors in a

2 n

inverter-motor drive system. Two phase currents per inverter-motor system are measured during one period of the switching frequency using the pulse width modulation (PWM) shift method. However, since the measured phase current contains an error component in the average current, the error component was compensated for in order to obtain a current similar to the actual phase current by using the slope and dwell time of the phase current. The effectiveness of the proposed method is verified through experiments. Full article

(This article belongs to the Special Issue Advances in Electric Drives and Power Electronics Fields)

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23 pages, 24401 KB

Open AccessArticle

Compensated Single Input Multiple Output Flyback Converter

by Mohammad Tahan, David O. Bamgboje and Tingshu Hu

Energies 2021, 14(11), 3009; https://doi.org/10.3390/en14113009 - 22 May 2021

Cited by 9 | Viewed by 6311

Abstract

A new single-input multiple-output (SIMO) converter is proposed in this work by incorporating flyback and buck converters in a master–slave configuration. The objective of this work is to address the cross regulation problem, achieve tight voltage regulation, improve the circuit form factor and attain a fast transient response for a SIMO flyback converter. The flyback converter maintains the output channels within 10% of their rated voltages and the SIMO buck converter is placed in series with the flyback converter such that it compensates for the output voltage deviation. Moreover, a time multiplexing switching scheme decouples output channel to eliminate the cross-regulation problem and remove the need for an additional winding transformer per each output channel. A type II compensator with a peak current mode controller was designed to achieve faster transient response which is critical for the proposed configuration. A thorough steady-state analysis was carried out on a triple output channel topology to obtain the design criteria and component values. MATLAB/Simscape modelling and simulation was used to validate the effectiveness of the proposed converter with the result yielding satisfactory transience even with load disturbance. Additionally, the result of the proposed converter is compared with previously published works. Full article

(This article belongs to the Special Issue Advances in Electric Drives and Power Electronics Fields)

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29 pages, 9140 KB

Open AccessArticle

Model Predictive Control for Paralleled Uninterruptible Power Supplies with an Additional Inverter Leg for Load-Side Neutral Connection

by Tiago Oliveira, Luís Caseiro, André Mendes, Sérgio Cruz and Marina Perdigão

Energies 2021, 14(8), 2270; https://doi.org/10.3390/en14082270 - 18 Apr 2021

Cited by 8 | Viewed by 2735

Abstract

Uninterruptible Power Supplies (UPS) have been demonstrated to be the key technology in feeding either single- and three-phase loads in a wide range of critical applications, such as high-tier datacenters and medical facilities. To increase the overall system power capacity and resilience, UPS systems are usually connected in parallel. When UPS systems are parallel connected, a circulating current can rise, inhibiting correct system operation. Moreover, having a controlled load power distribution is another fundamental requirement in paralleled UPS systems. However, strategies to ensure these two topics have not been explored to date for UPS systems with a load-side neutral connection. This paper proposes an innovative Finite Control Set Model Predictive Control (FCS-MPC) strategy that ensures circulating current elimination and controlled load power distribution for paralleled UPS systems that use an additional inverter leg for load neutral point connection. Additionally, a system topology based on two parallel-connected UPS systems that can simultaneously supply single- and three-phase critical loads is proposed. Experimental results show the effectiveness and robustness of the proposed control techniques even when different types of loads are connected to the UPS systems. Full article

(This article belongs to the Special Issue Advances in Electric Drives and Power Electronics Fields)

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39 pages, 12708 KB

Open AccessArticle

Fault Analysis and Non-Redundant Fault Tolerance in 3-Level Double Conversion UPS Systems Using Finite-Control-Set Model Predictive Control

by Luís Caseiro and André Mendes

Energies 2021, 14(8), 2210; https://doi.org/10.3390/en14082210 - 15 Apr 2021

Cited by 2 | Viewed by 3980

Abstract

Fault-tolerance is critical in power electronics, especially in Uninterruptible Power Supplies, given their role in protecting critical loads. Hence, it is crucial to develop fault-tolerant techniques to improve the resilience of these systems. This paper proposes a non-redundant fault-tolerant double conversion uninterruptible power supply based on 3-level converters. The proposed solution can correct open-circuit faults in all semiconductors (IGBTs and diodes) of all converters of the system (including the DC-DC converter), ensuring full-rated post-fault operation. This technique leverages the versatility of Finite-Control-Set Model Predictive Control to implement highly specific fault correction. This type of control enables a conditional exclusion of the switching states affected by each fault, allowing the converter to avoid these states when the fault compromises their output but still use them in all other conditions. Three main types of corrective actions are used: predictive controller adaptations, hardware reconfiguration, and DC bus voltage adjustment. However, highly differentiated corrective actions are taken depending on the fault type and location, maximizing post-fault performance in each case. Faults can be corrected simultaneously in all converters, as well as some combinations of multiple faults in the same converter. Experimental results are presented demonstrating the performance of the proposed solution. Full article

(This article belongs to the Special Issue Advances in Electric Drives and Power Electronics Fields)

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16 pages, 7247 KB

Open AccessArticle

Multivariable Deadbeat Control of Power Electronics Converters with Fast Dynamic Response and Fixed Switching Frequency

by Jaime A. Rohten, David N. Dewar, Pericle Zanchetta, Andrea Formentini, Javier A. Muñoz, Carlos R. Baier and José J. Silva

Energies 2021, 14(2), 313; https://doi.org/10.3390/en14020313 - 8 Jan 2021

Cited by 16 | Viewed by 3313

Abstract

Power converters have turned into a critical and every-day solution for electric power systems. In fact, the incorporation of renewable energies has led towards the constant improvement of power converter topologies and their controls. In this context, over the last 10 years, model predictive control (MPC) is positioned as one the most studied and promising alternatives for power converter control. In voltage source inverters (VSI), MPC has only been applied in the inner current control loop, accelerating and improving its dynamic response, but as mentioned, has been limited only to the current control loop. The fastest of the MPC techniques is the Deadbeat (DB) control, and in this paper, it is proposed to employ DB control on the entire system, therefore accelerating the time response not only for the current loops, but also for voltage loops. At the same time, this avoids overshoots and overpower in order to protect the power converter, leading to the fastest dynamic response according to VSI capabilities. For renewable energies, fast-dynamics entails fast maximum power tracking and therefore, maximizes energy harvesting, or in other words, reduces the losses due to the control dynamics. Thus, this paper gives a clear procedure and key points for designing a DB control for all the variables based on a mathematical model, which is corroborated by simulations and the experimental results. Full article

(This article belongs to the Special Issue Advances in Electric Drives and Power Electronics Fields)

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12 pages, 7736 KB

Open AccessArticle

Opposite Triangle Carrier with SVPWM for Common-Mode Voltage Reduction in Dual Three Phase Motor Drives

by Seon-Ik Hwang and Jang-Mok Kim

Energies 2021, 14(2), 282; https://doi.org/10.3390/en14020282 - 6 Jan 2021

Cited by 6 | Viewed by 2990

Abstract

The common-mode voltage (CMV) generated by the switching operation of the pulse width modulation (PWM) inverter leads to bearing failure and electromagnetic interference (EMI) noises. To reduce the CMV, it is necessary to reduce the magnitude of dv/dt and change the frequency of the CMV. In this paper, the range of the CMV is reduced by using opposite triangle carrier for ABC and XYZ winding group, and the change in frequency in the CMV is reduced by equalizing the dwell time of the zero voltage vector on ABC and XYZ winding group of dual three phase motor. Full article

(This article belongs to the Special Issue Advances in Electric Drives and Power Electronics Fields)

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