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Modeling and Mitigation of Reliability Issues in Power Converters for Modern Power Grids

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F3: Power Electronics".

Deadline for manuscript submissions: closed (15 August 2022) | Viewed by 5714

Special Issue Editors


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Guest Editor
School of Electrical Engineering, Shandong University, Jinan 250061, China
Interests: power electronics; reliability; EMI; power engineering

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Guest Editor
Power Electronics and Control Engineering Laboratory, The Polytechnic School (TPS), Arizona State University, Tempe, AZ 85281, USA
Interests: design, modeling, control and optimization of power electronic converters; characterizations and applications of wide bandgap (WBG) semiconductors; highly efficient and high-power density solutions for power conversions in the applications of more electric aircrafts; electric vehicles; wireless charging and data centers
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Guest Editor
Department of Electrical, Electronic & Computer Engineering, University of Western Australia, Perth 6009, Australia
Interests: grid integration of renewable energy sources; photovoltaics and energy storage and design and control of multilevel power converters
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
Interests: power electronics; multilevel converters; fault-tolerant converter topologies; energy generation from renewable sources; energy storage; power quality; HVDC transmission systems; and more electric aircraft and vessel

Special Issue Information

Dear Colleagues,

The Guest Editors are inviting submissions to a Special Issue of Energies on the subject area of “Modeling and Mitigation of Reliability Issues in Power Converters for Modern Power Grids”.

In recent times, there has been a strong determination to implement microgrids (MGs) as alternatives to conventional grids. In MGs, there are different power-electronics-based power sources that gather energy from renewable energy sources and also provide bidirectional power flow for storage devices. Thus, power electronic converters are used in wide ranges of power levels, voltage, and current rates for AC and DC MGs. With progress in the manufacturing technology of power converters, gird-connected interfaces for the distributed power sources have been developed in recent decades. By increasing the roles of power converters in MGs, providing continuous and reliable conditions for feeding vital and high-power applications must be attained by researchers and network owners. Therefore, the reliability challenges of power converters are becoming an important issue. Photovoltaic and wind power systems, energy storage devices, and electric vehicles are starting to have important roles in future MGs. Different types of inverters, DC–DC converters, and unidirectional/bidirectional chargers must be designed from a reliability standpoint to guarantee fault-free operation during their lifetime and provide alternative solutions to unexpected events.

We are certainly aware of the technical, economic, and industry-based reliability challenges of power converters for modern MGs and are open to contributions on these aspects. We cordially invite you to submit your original works and research papers to this Special Issue. Potential topics include but are not limited to:

  • Fault diagnostics, prognostics, and mitigations for power converters;
  • Lifetime model formulations for power components;
  • Fault-tolerant strategies and designs;
  • Real-time health conditions of circuit elements;
  • Identification and introduction of different factors that impact the reliability of power converters;
  • Heat sink approaches and cooling system designs;
  • Reliability-driven multiobjective design optimization of power converters;
  • Practical reports of reliability issues in power converters of transportation electrification segment, including but not limited to electric vehicles, electric ships, and more electric aircrafts;
  • Review papers related to the reliability and fault-tolerant capability of power converters;
  • Software tools for reliability analyses;
  • Artificial Intelligence applications for reliability-based design of power electronic systems.

Content Types

Regular Paper:

New results in the field of reliability issues of power converters which are applicable for modern power grids: for example, reliability issues of power components, devices, module, system-level, circuit, control, system, or application issues.

Letter:

This type of papers gives authors the opportunity to publish contributions within less than one month of submission to ensure rapid dissemination of their original ideas. This option let the authors record their ideas rapidly, even more rapid than conferences. Then the authors can publish a fully extended version of their work in scientific journals. 2–6 pages (excluding references) limitation is recommended for this type of papers.

Technical Reports:

One of interesting type of papers which are welcomed is "Technical Reports". Experts in industry may face with reliability issues in their case studies, present solutions for those issues. The gust editors say welcome to hear their technical reports. Because, providing experiment insight for researcher is very valuable.

Review Paper:

Review papers are always interesting articles for researcher to know the last progress in a filed. This type of papers can be written by experts, who have defined their Ph.D./MSc courses with their supervisions, and anyone know very well the research and technical developments in the field to provide a guidance map for future steps.

Dr. Tohid Rahimi
Prof. Dr. Ayan Mallik
Dr. Hossein Dehghani Tafti
Prof. Dr. Josep Pou
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

  • fault-tolerant converters
  • lifetime
  • reliability
  • fault diagnostic
  • health monitoring
  • fault mechanisms and roots
  • multiobjective optimum design of power converters
  • reliability index role in aerospace and more electric airplanes
  • grid-connected power converters
  • electric vehicle
  • DC and AC Microgrids

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Published Papers (2 papers)

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Research

24 pages, 8284 KiB  
Article
Fast Quasi-Static Time-Series Simulation for Accurate PV Inverter Semiconductor Fatigue Analysis with a Long-Term Solar Profile
by Yunting Liu, Leon M. Tolbert, Paychuda Kritprajun, Jiaojiao Dong, Lin Zhu, Thomas Ben Ollis, Kevin P. Schneider and Kumaraguru Prabakar
Energies 2022, 15(23), 9104; https://doi.org/10.3390/en15239104 - 1 Dec 2022
Cited by 2 | Viewed by 1560
Abstract
Power system simulations with long-term data typically have large time steps, varying from one second to a few minutes. However, for PV inverter semiconductors in grid-connected applications, the minimum thermal stress cycle occurs over the fundamental grid frequency (50 or 60 Hz). This [...] Read more.
Power system simulations with long-term data typically have large time steps, varying from one second to a few minutes. However, for PV inverter semiconductors in grid-connected applications, the minimum thermal stress cycle occurs over the fundamental grid frequency (50 or 60 Hz). This requires the time step of the fatigue simulation to be approximately 100 μs. This small time step requires long computation times to process yearly power production profiles. In this paper, we propose a fast fatigue simulation for inverter semiconductors using the quasi-static time-series simulation concept. The proposed simulation calculates the steady state of the semiconductor junction temperature using a fast Fourier transform. The small thermal cycling during a switching period and even over the fundamental waveform is disregarded to further accelerate the simulation speed. The resulting time step of the fatigue simulation is 15 min, which is consistent with the solar dataset. The error of the proposed simulation is 0.16% compared to the fatigue simulation results using the complete thermal stress profile. The error of the proposed method is significantly less than the conventional averaged thermal profile. A PV inverter that responds to a transactive energy system is simulated to demonstrate the use of the proposed fatigue simulation. The proposed simulation has the potential to cosimulate with system-level simulation tools that also adopt the quasi-static time-series concept. Full article
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23 pages, 11628 KiB  
Article
A Reconfigurable Fault-Tolerant PV Inverter via Integrating HERIC and H5 Topologies
by Hossein Khoun Jahan, Nima Abdolmaleki, Mohammad Ahmadpour, Jianfei Chen, Caisheng Wang, Mehdi Abapour and Frede Blaabjerg
Energies 2022, 15(9), 3403; https://doi.org/10.3390/en15093403 - 6 May 2022
Cited by 3 | Viewed by 2318
Abstract
Solar energy is prevalent in many applications, therefore, the reliability of solar energy systems has become an important topic for research communities and industry. High reliability and fault-tolerant capability are particularly vital for the solar energy systems that are mission-critical and/or inaccessible to [...] Read more.
Solar energy is prevalent in many applications, therefore, the reliability of solar energy systems has become an important topic for research communities and industry. High reliability and fault-tolerant capability are particularly vital for the solar energy systems that are mission-critical and/or inaccessible to affordable maintenance. In order to enhance the reliability of a grid-tied PV system, a fault-tolerant Photovoltaic (PV) inverter, termed Integrated Fault-Tolerant PV Inverter (IFTPVI), is proposed in this paper. The IFTPVI is based on the Highly Efficient and Reliable Inverter Concept (HERIC) and H5 inverters that are both popular and commercialized transformerless inverters in grid-tied PV applications. The IFTPVI can tolerate both open-circuit (OC) and short-circuit (SC) faults while maintaining the same voltage and current levels. The system description, reliability analysis, simulation in Matlab/Simulink 2018, and experimental results are provided to verify the feasibility and viability of the proposed inverter topology. Full article
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