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Advanced Technologies for Power Systems—from Power Electronics to Smart Grid Optimization

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 799

Special Issue Editor

Special Issue Information

Dear Colleagues,

The continuing trend toward greater electrification in consumer, commercial, industrial, and transportation applications promises a dynamic transformation of modern power systems. This evolution encompasses two critical technological domains: power electronics for energy processing and intelligent systems for grid optimization. The growing penetration of these technologies in energy systems requires focused attention, with the main challenges being efficiency improvement, cost reduction, and improved reliability. Power electronic systems remain indispensable in modern energy applications, enabling efficient energy conversion across various engineering domains. Simultaneously, emerging smart grid technologies leveraging machine learning and advanced analytics are revolutionizing power loss reduction, demand forecasting, and network optimization. This Special Issue will focus on cutting-edge applications, including the following:

  • Power electronics converters and electric motor drives
  • Innovative approaches for power loss reduction in power systems
  • Machine learning applications in monitoring and control
  • AI-driven solutions for predictive maintenance and fault detection
  • Intelligent integration of power systems

We invite original research contributions addressing theoretical developments, practical implementations, and case studies and reviews in these interconnected domains. High-quality submissions demonstrating novel methodologies with experimental or simulation validation are particularly encouraged for this comprehensive Special Issue.

Prof. Dr. Federico Barrero
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 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

  • power electric systems
  • energy loss reduction
  • machine learning
  • renewable integration
  • fault detection
  • artificial intelligence approach
  • energy optimization

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Published Papers (2 papers)

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Research

14 pages, 6678 KB  
Article
Effect of Weighting Factors in Energy Efficiency of Predictive Control of Multi-Phase Drives
by Esteban Marsal, Manuel R. Arahal, Manuel G. Satué and Kumars Rouzbehi
Appl. Sci. 2025, 15(22), 12148; https://doi.org/10.3390/app152212148 - 16 Nov 2025
Viewed by 371
Abstract
Predictive current control of variable speed drives by direct command of inverter states allows fast control. Its application to multiphase system constitutes a flexible solution that tackles several objectives by means of a cost function with several terms. Weighting factors are used to [...] Read more.
Predictive current control of variable speed drives by direct command of inverter states allows fast control. Its application to multiphase system constitutes a flexible solution that tackles several objectives by means of a cost function with several terms. Weighting factors are used to give relative importance of each term. They have a remarkable effect on figures of merit. In particular, secondary plane content and average switching frequency are usually considered as figures of merit. However, weighting factor effect on global energy efficiency has not been studied before because losses have different sources (commutations, Joule effect, etc.) that do not have a clear link with weighting factors and because trade-offs might appear. The present work uses an experimental setup with a five-phase induction machine connected to a mechanical load. By measuring the power balance, it is possible to show the effect of weighting factor tuning on losses. By tuning λxy, efficiency increases by up to 25%. In parallel, optimizing λnc reduces the average switching frequency by 9% and 18% across the evaluated configurations. This enables the selection of the most adequate values of the weighting factors. The results show that for each speed and load combination, the drive exhibits improved efficiency for some tuning. Full article
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23 pages, 20304 KB  
Article
Cross-Layer Performance Modeling and MAC-Layer Algorithm Design for Power Line Communication Relay Systems
by Zhixiong Chen, Pengjiao Wang, Tianshu Cao, Jiajing Li and Peiru Chen
Appl. Sci. 2025, 15(22), 12019; https://doi.org/10.3390/app152212019 - 12 Nov 2025
Viewed by 252
Abstract
In intelligent meter reading and other applications, power line communication can use relay technology to solve the problem of cross-station or long-distance reliable communication. This study investigates the combined impact of the physical and Media Access Control (MAC) layers on power line relay [...] Read more.
In intelligent meter reading and other applications, power line communication can use relay technology to solve the problem of cross-station or long-distance reliable communication. This study investigates the combined impact of the physical and Media Access Control (MAC) layers on power line relay communication system performance. To this end, cross-layer modeling, optimization, and simulation analysis integrating both layers are conducted. Based on the CSMA algorithm of IEEE 1901 protocol, a cross-layer performance analysis model of two-hop relay power line communication system is established considering the influence of non-ideal channel transmission at physical layer and competitive access at MAC layer on system performance. In order to reduce the high collision probability caused by two competitions of packets in the above scheme, an improved two-hop transmission algorithm based on CSMA-TDMA is proposed. The cross-layer performance of the system under different single-hop and two-hop schemes is compared, and the mechanism of how parameters such as the MAC layer and the physical layer affect the cross-layer performance of the power line communication system is analyzed. And the optimal power allocation factor is obtained by using the sequential quadratic programming method for the joint system throughput and packet loss rate optimization model with the two-hop power constraint. Simulation results show that the two-hop transmission scheme based on CSMA-TDMA can avoid the second-hop competition and backoff process, and has better performance in terms of throughput, packet loss rate, and delay. Full article
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