Power Electronics Converters, 2nd Edition

Topic Information

Dear Colleagues,

This is the second edition of the previous successful topic “Power Electronics Converters”, (https://www.mdpi.com/topics/9E8XB1V558). As the technology for power semiconductor devices and integrated circuits develops, the potential for applications of power electronics expands. There are already many commercially available power semiconductor devices; however, development in this direction is continuing. We therefore invite papers on innovative technical developments, in addition to reviews, case studies, and analytical and assessment papers from different disciplines that are relevant to the topic of power electronics converters. The main topics of the section include but are not limited to the following:

• Topology and modulations of converters/inverters
• Modeling and control of converters/inverters
• Power conversion technologies for wireless power transmission
• Fault diagnosis of converters/inverters
• Emerging power conversion technologies
• Application of neural networks in power electronics and electric drives
• Control of power electronics and electric drives.

Prof. Dr. Mohsin Jamil
Prof. Dr. Yuanmao Ye
Dr. Tomasz Pajchrowski
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Designs designs	-	3.9	2017	21.7 Days	CHF 1600	Submit
Electronics electronics	2.6	5.3	2012	16.4 Days	CHF 2400	Submit
Energies energies	3.0	6.2	2008	16.8 Days	CHF 2600	Submit
Micromachines micromachines	3.0	5.2	2010	16.2 Days	CHF 2100	Submit

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Published Papers (4 papers)

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18 pages, 3948 KiB  

Open AccessArticle

Analysis of the Impact of Short Circuit Faults in Converter Valve Submodules on Valve Power Transmission

by Yirun Ji, Qian Yuan, Chengjie Zhou, Minxiang Yang, Xuanfei Huang, Libo Ma and Hongshan Zhao

Energies 2025, 18(6), 1496; https://doi.org/10.3390/en18061496 - 18 Mar 2025

Viewed by 145

Abstract

Faults of a Modular Multilevel Converter (MMC)-type converter valve significantly impact the reliability of flexible DC transmission systems. This paper analyzed the impact of ongoing short circuit faults in submodules on the power transmission of the MMC-type converter valve of which redundant submodules [...] Read more.

Faults of a Modular Multilevel Converter (MMC)-type converter valve significantly impact the reliability of flexible DC transmission systems. This paper analyzed the impact of ongoing short circuit faults in submodules on the power transmission of the MMC-type converter valve of which redundant submodules had been depleted. First, MMC’s working principle and its submodules’ possible operational states were investigated. Then, fault mechanisms for intra-submodule Insulated-Gate Bipolar transistor (IGBT) short circuits and inter-submodule short circuits were modeled to infer changes in power transmission during submodule faults. To quantify the impact of submodule faults on the energy transfer efficiency of the converter valve, an energy transfer efficiency index was proposed to obtain analytical expressions for energy transfer efficiency in the case of intra-submodule and inter-submodule short-circuit faults. Finally, the effectiveness of the proposed analytical model was verified through Simulink simulations. Simulation results indicate that ongoing intra-submodule and inter-submodule short circuits increase the input power of the converter valve, reducing energy transfer efficiency. Moreover, the energy transfer efficiency continues to decline with an increase in faulty submodules. Full article

(This article belongs to the Topic Power Electronics Converters, 2nd Edition)

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15 pages, 5327 KiB  

Open AccessArticle

Two-Step Process-Based Open-Circuit Fault Diagnosis for Three-Level NPC Converters

by Wenli Zhang, Bo Guan and Yujie Chang

Electronics 2025, 14(3), 542; https://doi.org/10.3390/electronics14030542 - 29 Jan 2025

Cited by 1 | Viewed by 587

Abstract

Fast open-circuit (OC) fault diagnosis is essential to ensure that a multilevel inverter operates under stable conditions. Conventional diagnosis methods either require additional hardware sensors or complex calculations. However, these conditions are difficult to realize in some low-cost application scenarios. For this reason, [...] Read more.

Fast open-circuit (OC) fault diagnosis is essential to ensure that a multilevel inverter operates under stable conditions. Conventional diagnosis methods either require additional hardware sensors or complex calculations. However, these conditions are difficult to realize in some low-cost application scenarios. For this reason, a two-step process-based OC fault diagnosis method is proposed according to available data that can be acquired using the existing sensors in the application. At the same time, the proposed method does not involve complex and precise calculation. By analyzing the effects of an OC fault on the AC-side three-phase current, the faulty bridge arm can be quickly located via the average current. Furthermore, through establishing the calculation model of the neutral point potential, an accurate diagnosis of faulty switching devices can be achieved quickly and easily based on the residuals. The proposed OC fault diagnosis method is also proved to be correct and effective based on simulation and experience. Full article

(This article belongs to the Topic Power Electronics Converters, 2nd Edition)

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14 pages, 6510 KiB  

Open AccessArticle

Analysis of Key Factors Affecting Case-to-Ambient Thermal Resistance in Thermal Modeling of Power Devices

by Kaixin Wei, Peiji Shi, Pili Bao, Chuanchao Liu and Yanzhou Qin

Energies 2024, 17(22), 5692; https://doi.org/10.3390/en17225692 - 14 Nov 2024

Viewed by 685

Abstract

In the application of power converters, the ambient temperature (T_a) experiences significant fluctuations. For the case-to-ambient resistance (R_ca), apart from the influence of the material’s inherent properties, factors such as heat dissipation structure, working environment, and operational [...] Read more.

In the application of power converters, the ambient temperature (T_a) experiences significant fluctuations. For the case-to-ambient resistance (R_ca), apart from the influence of the material’s inherent properties, factors such as heat dissipation structure, working environment, and operational state can all have an impact on the R_ca. Notably, while there are a limited number of models that consider environmental changes, existing models for calculating the R_ca predominantly overlook the influence of varying working conditions or boundary conditions on the self-thermal resistance. Based on simulation and experimental analyses, the methods to calculate the R_ca are outlined, and the key factors, inclusive of the coupling effects that influence the R_ca in the thermal modeling of power devices, are thoroughly discussed. Full article

(This article belongs to the Topic Power Electronics Converters, 2nd Edition)

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14 pages, 3944 KiB  

Open AccessArticle

Improvement of the Source Current Quality for a Shunt Active Power Filter Operating Using Hysteresis Technique with Stabilized Switching Frequency

by Andrzej Szromba

Energies 2024, 17(20), 5098; https://doi.org/10.3390/en17205098 - 14 Oct 2024

Cited by 1 | Viewed by 814

Abstract

Determining the current reference for a shunt active power filter (SAPF) can be carried out in many ways. Once the reference is determined, it can be shaped by SAPF switches with the use of pulse width modulation (PWM)/hysteresis control techniques. There are many [...] Read more.

Determining the current reference for a shunt active power filter (SAPF) can be carried out in many ways. Once the reference is determined, it can be shaped by SAPF switches with the use of pulse width modulation (PWM)/hysteresis control techniques. There are many variants of shaping the compensation waveform using these techniques. Nevertheless, regardless of the PWM/hysteresis technique adopted, a switching frequency current component appears in the system. It acts as a carrier used to inject a compensating current into the grid. Once the compensating current has been entered into the grid, the switching component should be reduced in it. This can be performed using RLC passive filters in various variants. The article discusses a variable/stabilized frequency hysteresis current control technique adapted for SAPF regulation with the use of current closed-loop control (source current direct control). For this technique, the passive filter should be placed outside the current control loop. The article focuses on examining the effectiveness of the interaction of the RLC filter with SAPF acting with such a control technique. Full article

(This article belongs to the Topic Power Electronics Converters, 2nd Edition)

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