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Design, Analysis and Application of Power Electronics, Motor Drives and...
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Design, Analysis and Application of Power Electronics, Motor Drives and Renewable Energy Systems

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

Deadline for manuscript submissions: closed (20 July 2022) | Viewed by 36534

Special Issue Editor

Prof. Dr. Emmanuel Agamloh

E-Mail Website
Guest Editor
School of Engineering and Computer Science, Baylor University, Waco, TX 76798, USA
Interests: electric machines; motor drives and power electronics; energy efficiency; renewable energy systems; electrical traction motors and aerospace applications; electric machines in oil and gas applications

Special Issue Information

Dear Colleagues,

The design and application of power electronic converters in renewable energy systems has enabled grid integration and increased conversion efficiency. Wind energy and PV are fast growing areas already playing important roles in the electric power generation mix. Ocean wave and tidal energy along with other emerging forms of renewable energy are expected to reach maturity in the future and play a role. In these systems, power electronics is a key enabling technology that has provided grid interface solutions. Other power electronics application areas, such as motor drives, have also assumed a critically important role in the design of highly efficient and advanced traction and propulsion systems in electrified transportation as well as in several industrial applications. Advanced circuit topologies, components, intelligent control schemes, and integration techniques have seen significant innovation over the past few decades. Therefore, the focus of this Special Issue is on problems relating to the design, analysis, and application of power electronics, motor drives, and renewable energy systems. The Guest Editor is inviting high-quality articles that discuss the areas highlighted above, including review papers on the current state-of-the-art and projected trends for the future.

Topics of interest include but are not limited to:

  • Design, analysis, and application of motor drives (including in emerging applications), control of electric drives, control systems and algorithms in motor drives, energy efficiency of motor drives, advanced electric machine topologies
  • Design of robust and efficient power electronic systems, intelligent control schemes in power converters, including modular power converters
  • Application of power electronics in renewable energy systems, design and application of renewable energy systems, integration, and grid interface issues
  • Stability issues of power electronic converters in renewable energy systems and dc grids, reliability, condition monitoring, and diagnostics and fault detection.

Prof. Dr. Emmanuel Agamloh
Guest Editor

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.

Published Papers (4 papers)

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Research

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21 pages, 9881 KiB  
Article
Novel Characterization of Si- and SiC-Based PWM Inverter Bearing Currents Using Probability Density Functions
by Ryan Collin, Alex Yokochi and Annette von Jouanne
Energies 2022, 15(9), 3043; https://doi.org/10.3390/en15093043 - 21 Apr 2022
Cited by 4 | Viewed by 1671
Abstract
The high frequency PWM voltage pulses from a two-level six-switch inverter produce a common-mode voltage in an electric machine’s windings, a fraction of which appears on the machine shaft due to electrostatic (capacitive) coupling. When the shaft voltage exceeds the dielectric strength of [...] Read more.
The high frequency PWM voltage pulses from a two-level six-switch inverter produce a common-mode voltage in an electric machine’s windings, a fraction of which appears on the machine shaft due to electrostatic (capacitive) coupling. When the shaft voltage exceeds the dielectric strength of the bearing lubricating grease, electric discharge machining (EDM) electrostatic discharges occur within the bearing, which can lead to premature failure. According to pulsed dielectric theory, the breakdown voltage across a dielectric increases with an increase in voltage slew rate (dv/dt). Therefore, the faster voltage rise times of wide bandgap devices are expected to produce higher magnitude shaft voltages and EDM bearing currents. This paper presents circuit modeling of EDM currents and compares the shaft voltage and bearing current amplitudes of silicon- and silicon carbide-based PWM inverters through experimental measurements and a statistical analysis using probability density functions. The statistical analysis provides insights regarding the correlation between bearing failure and the number of damage causing discharges over time which is a key step in developing bearing lifetime prediction models. Full article
(This article belongs to the Special Issue Design, Analysis and Application of Power Electronics, Motor Drives and Renewable Energy Systems)
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13 pages, 3255 KiB  
Article
Design Consideration Regarding a Residential Renewable-Based Microgrid with EV Charging Station Capabilities
by Corneliu Marinescu
Energies 2021, 14(16), 5085; https://doi.org/10.3390/en14165085 - 18 Aug 2021
Cited by 2 | Viewed by 2163
Abstract
Electric Vehicles (EVs) will be a key component of sustainable e-transportation systems. It is important to provide a charging infrastructure for EVs. EVs are “zero” polluting and highly efficient, but these qualities are valid only if the EV is supplied from renewable energy [...] Read more.
Electric Vehicles (EVs) will be a key component of sustainable e-transportation systems. It is important to provide a charging infrastructure for EVs. EVs are “zero” polluting and highly efficient, but these qualities are valid only if the EV is supplied from renewable energy sources (RES). In urban areas, there is a lot of unused space such as roofs of residential and enterprise buildings, roofs of parking lots, building facades, etc. In cities, the PV and small wind turbines RES should be able to supply EVs with clean energy. Such a solution has many advantages. In an EU-financed research project, the team developed a solution for a Residential Charging Station (RCS), the design solution being implemented with the equipment available on the market. In this paper, the design considerations and some challenges raised by it are presented. Improvements of the existing equipment to better suit future needs are further discussed. The proposed solution solves the matter optimally and the implementing it will offer future Smart Cities an RCS with public access with several useful properties. Full article
(This article belongs to the Special Issue Design, Analysis and Application of Power Electronics, Motor Drives and Renewable Energy Systems)
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25 pages, 13060 KiB  
Article
Instantaneous Electromagnetic Torque Components in Synchronous Motors Fed by Load-Commutated Inverters
by Gabriel Ekemb, Fouad Slaoui-Hasnaoui, Joseph Song-Manguelle, P. M. Lingom and Issouf Fofana
Energies 2021, 14(11), 3223; https://doi.org/10.3390/en14113223 - 31 May 2021
Cited by 9 | Viewed by 2276
Abstract
This paper proposes time-domain analytical expressions of the instantaneous pulsating torque components in a synchronous machine air gap when supplied by a load-commutated-inverter (LCI) system. The LCI technology is one of the most used variable frequency drives when very high power and low [...] Read more.
This paper proposes time-domain analytical expressions of the instantaneous pulsating torque components in a synchronous machine air gap when supplied by a load-commutated-inverter (LCI) system. The LCI technology is one of the most used variable frequency drives when very high power and low speed are required in applications such as pipeline recompression and decompression, as well as liquefied natural gas compression. In such applications, synchronous motors are used because of their high efficiency resulting from a separated supply of the current to their rotor through the excitation circuit. These applications usually have long and flexible shafts, which are very sensitive to torsional vibration excitation when their natural frequencies interact with any external torque applied to the shaft. A torsional analysis is required by international standards to assess the survivability of the shaft through the overall speed range of the motor. Therefore, the magnitude and frequencies of the motor air-gap torque are needed for such evaluation. The proposed developments are supported by numerical simulations of LCI systems in a large range of operation range. From the simulation results, torque harmonic families are derived and expressed in a parametric form, which confirm the accuracy of the proposed relationships. Full article
(This article belongs to the Special Issue Design, Analysis and Application of Power Electronics, Motor Drives and Renewable Energy Systems)
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Review

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26 pages, 68986 KiB  
Review
A Comprehensive Review on Supercapacitor Applications and Developments
by Mustafa Ergin Şahin, Frede Blaabjerg and Ariya Sangwongwanich
Energies 2022, 15(3), 674; https://doi.org/10.3390/en15030674 - 18 Jan 2022
Cited by 168 | Viewed by 28962
Abstract
The storage of enormous energies is a significant challenge for electrical generation. Researchers have studied energy storage methods and increased efficiency for many years. In recent years, researchers have been exploring new materials and techniques to store more significant amounts of energy more [...] Read more.
The storage of enormous energies is a significant challenge for electrical generation. Researchers have studied energy storage methods and increased efficiency for many years. In recent years, researchers have been exploring new materials and techniques to store more significant amounts of energy more efficiently. In particular, renewable energy sources and electric vehicle technologies are triggering these scientific studies. Scientists and manufacturers recently proposed the supercapacitor (SC) as an alternating or hybrid storage device. This paper aims to provide a comprehensive review of SC applications and their developments. Accordingly, a detailed literature review was first carried out. The historical results of SCs are revealed in this paper. The structure, working principle, and materials of SC are given in detail to be analysed more effectively. The advantages and disadvantages, market profile, and new technologies with manufacturer corporations are investigated to produce a techno-economic analysis of SCs. The electric vehicle, power systems, hybrid energy storage systems with integration of renewable energy sources, and other applications of SCs are investigated in this paper. Additionally, SC modelling design principles with charge and discharge tests are explored. Other components and their price to produce a compact module for high power density are also investigated. Full article
(This article belongs to the Special Issue Design, Analysis and Application of Power Electronics, Motor Drives and Renewable Energy Systems)
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