Special Issue "Power Converter of Electric Machines, Renewable Energy Systems, and Transportation"
Deadline for manuscript submissions: 7 December 2020.
Interests: high-performance dynamic drives with PM motors; power electronic converters; fault tolerance in multilevel converters; power electronic transformer (PET); energy storage for the integration of renewable energy sources and recharge station for electric vehicles
Interests: My research activity is mainly focused on the following topics: Multilevel diode clamped converters and hybrid-based modulation balancing strategies; Multilevel modular converters and harmonic-based balancing strategies; Multiphase converters; Multiphase electrical PM synchronous machines and inherent MTPA strategies; Multiphase induction machines and inherent MTPA strategies; Modulation strategies for multilevel modular converters supplied by electrical storage; Multimotor/single-inverter electrical drives and inherent MTPA strategies.
Interests: My main areas of interest include design and control of power converters for photovoltaics and distributed power generation systems, modulation of multilevel inverters, design and control of high efficiency DC–DC converters, SiC-based converters, and design of digital circuits on FPGA
The Guest Editor is inviting submissions to a Special Issue of Energies on the subject area of “Power Converters for Electric Machines, Renewable Energy Systems, and Transportation”. Power converters and electric machines for industrial applications are widely disseminated and tested because they allow high versatility and high efficiency. This know-how represents an excellent starting point, but it cannot be traded in renewable and transport applications, where performance, variable operating conditions, and reliability issues are mandatory constraints. Converter design and control are critical as they are evolving into an essential component to interface and integrate different power systems. Therefore, in this evolution, power converter topology and technology play an enabling role in the advancements of electric machine performance, renewable energy integration, and emerging transport applications. As a consequence, it is necessary to develop innovative systems especially “devoted” to the application under study. This Special Issue serves to address the present challenging issues with design and control techniques for power converters and electric machines. Topics of interest for publication include but are not limited to:
- Power converters for electric machines;
- Power systems for renewable energy resources;
- Drives for transportation;
- Variable speed drives;
- Modeling and design of electric machines;
- Doubly-fed induction generator;
- Energy storage systems;
- Power electronics modulation, control and optimization.
Prof. Dr. Adolfo Dannier
Prof. Dr. Gianluca Brando
Dr. Marino Coppola
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. 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 1800 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.
- Power converters
- Electric machines
- Electric drives for transportation
- Power systems for renewable energy
- Power generation
- Energy storage system
- Control of power electronics
- Distributed power generation systems
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Control of a Fault-tolerant Photovoltaic Energy Converter in Island Operation
Authors: M. Coppola; A. Dannier; P. Guerriero; S. Daliento; D. Lauria; A. Del Pizzo
Affiliation: Department of Electrical Engineering and Information Technologies - University of Napoli Federico II; Via Claudio 21, 80125 Napoli, Italy Department of Industrial Engineering - University of Napoli Federico II; Via Claudio 21, 80125 Napoli, Italy
Abstract: The paper deals with design and control of a fault tolerant and reconfigurable photovoltaic converter, integrating a Battery Energy Storage System as standby backup energy resource. When a failure occurs, an appropriate control method makes the energy conversion system capable of operating in open-delta configuration, in parallel with the grid as well as in island mode. In case network voltage is lacking, due to heavy anomalies or maintenance reasons, the proposed control system is able to quickly disconnect the inverter from the grid, while ensuring the energy continuity to the local load and emergency fixtures by means of the integrated battery packs. In addition, the paper also proposes a fast islanding detection method which is essential for the correct operation of the control system. This specific technique is based on the Hilbert transform of the voltage of the Point of Common Coupling. A thorough numerical investigation is carried out with reference to a representative case study in order to demonstrate the feasibility and the effectiveness of the proposed control strategy.
Title: Transformerless Multilevel Voltage-Source Inverter Topology Comparative Study for Renewable Energy Systems
Authors: Adyr Andrés Estévez de Bén; Juvenal Rodriguez; Alfredo Alvarez-Diazcomas
Abstract: At present, renewable energies represent 25% of the global power generation capacity. The increase in clean energy facilities is mainly due to the high levels of pollution generated by the burning of fossil fuels to satisfy the growing electricity demand. The global capacity of generating electricity from solar energy has experienced significant increases, exceeding the installed capacity of hydro and wind power. Inverters are used in PV systems to convert direct current into alternating current. Today, multilevel inverters are used as a competitive option against traditional or conventional inverters that only deliver two levels of energy. Multilevel inverters generally have less total harmonic distortion and a lower switching frequency than traditional inverters. The output filter size in this type of converters is smaller and can handle higher output power. These characteristics make multilevel DC/AC converters a suitable solution for PV systems. However, the use of multilevel inverters in renewable energy applications presents different challenges; for example, grid-connected systems use a transformer to avoid the presence of leakage currents. The transformers make the system more expensive, bulky, heavy, and reduce efficiency. A leakage current flows from the grid to the stray capacitances of the panel poles when the transformer is not included in the topology. Previously, DC/AC converters have been studied in different industrial applications. However, this paper analyzes the state of the art of multilevel inverters used in PV systems. The work presents a comparative analysis of the main multilevel inverter voltage-source topologies used in transformerless PV systems. In each scheme, the advantages and disadvantages are presented, as well as the main challenges. Also, current trends in grid-connected systems using these schemes are discussed. Finally, a comparative table based on input voltage value, switching frequency, output levels, control strategy used, efficiency, and leakage current is shown.