IEEE Open Journal of Industry Applications最新文献

{"title":"The Virtual Power Feedback: Enhancing the Transient Stability of Virtual Synchronous Generators Under Current Limitation","authors":"Alessia Camboni;Vincenzo Mallemaci;Fabio Mandrile;Radu Bojoi","doi":"10.1109/OJIA.2025.3586412","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3586412","url":null,"abstract":"The virtual synchronous generator (VSG) concept is a well-established control solution that facilitates the integration of power electronics-interfaced renewable sources into the electric grid. The VSG algorithm enables power converters to support the grid in case of voltage dips by injecting a large short-circuit current. However, a current limitation strategy must be implemented to address the hardware limitation of power converters. As demonstrated in the literature, the current constraint affects the VSG’s dynamics by limiting the output power, thus causing a substantial acceleration of the virtual rotor and potentially leading to a loss of synchronism. Several available solutions utilize the measured actual active power as feedback, thereby modifying the VSG with complex control algorithms. On the other hand, this article proposes a different approach, highlighting the benefits of using the virtual power instead of the measured power feedback for the most adopted limitation strategies available in the literature. This paradigm shift leads to a significant improvement in stability without requiring fault detection capability or switching the control structure, as demonstrated both theoretically and experimentally in this article.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"490-505"},"PeriodicalIF":7.9,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11072272","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wireless Power and Data Transfer for Robotic Joints Using High Coupling Magnetic Cores and Photodiode-Based Communication","authors":"David Sirianni;Takanobu Ohno;Spasoje Mirić","doi":"10.1109/OJIA.2025.3585676","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3585676","url":null,"abstract":"Robotic systems, such as legged robots or industrial robots used in manufacturing and humanoid assistance, rely on robotic joints to perform multi-degree-of-freedom motions. Each joint typically incorporates a motor and a gear to drive its motion. Power delivery and control for these joints are usually achieved through cables for power and data transfer, which are routed through the joints. However, as the joints move, these cables bend and flex, leading to eventual failure due to the limited number of bending cycles they can withstand. In addition, in high-precision joints, cable slack can disrupt position control accuracy. To address these challenges, this article investigates wireless power and data transfer for robotic joints. The proposed approach leverages a closed magnetic core for power transfer, minimizing stray magnetic fields, and uses photodiode-based communication with a custom-developed control circuit. The approach is validated through experimental measurements and benchmarked against existing solutions in the literature. We demonstrate a system capable of transferring 200 W of power and achieving a data transfer rate of 2 Mbit/s, with the total weight of all components being 96 g.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"525-538"},"PeriodicalIF":7.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11068112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Virtual Synchronous Machine With Online Grid Impedance Estimation","authors":"Alessandro Roveri;Vincenzo Mallemaci;Fabio Mandrile;Radu Bojoi","doi":"10.1109/OJIA.2025.3584050","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3584050","url":null,"abstract":"In the growing context of integrating renewable sources and storage systems in the electric grid, the virtual synchronous machine (VSM) concept represents a valid solution to embed grid support functionalities in grid-tied converters. The knowledge of grid impedance is required to exploit properly the VSM features in providing grid ancillary services, such as inertial behavior, harmonics compensation, as well as short-circuit current injection during faults. Therefore, this article proposes a closed-loop grid impedance estimator, specifically designed for VSM applications, which is directly integrated into the VSM model. The grid resistance and inductance estimations are performed in real time, without the need of data elaboration through complex mathematical tools, which are usually required by methods available in the literature. The proposed solution leverages the VSM dependency on grid parameters when an amount of current is directly injected into the grid without being processed by the VSM itself. The proposed estimator inherently rejects the noise on voltage and current measurements, thus providing reliable results for real world operating conditions affected by disturbances. It can be easily tuned according to the desired filtering capability and estimation process duration. Experimental tests on a 15 kVA grid-tied inverter validate the proposed solution.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"427-444"},"PeriodicalIF":7.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11059323","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MatWPT: A MATLAB Tool for Wireless Power Transfer Systems Design Optimization","authors":"Fabio Corti;Matteo Intravaia;Gabriele Maria Lozito;Marco Bindi;Alberto Reatti","doi":"10.1109/OJIA.2025.3580262","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3580262","url":null,"abstract":"This article presents MatWPT, an innovative software developed to support designers during the analysis and development of wireless power transfer (WPT) systems. The software, developed as a MATLAB toolbox, receives the key system characteristics as inputs, such as compensation topology, operating frequency and desired output power. Then, using evolutionary optimization, provides potential design options for meeting the performance criteria defined by the designer, in terms of output power and efficiency. Unlike the solutions available in the literature, the proposed technique allows the component tolerances to be considered. In fact, the tool implements an automatic Monte Carlo analysis to estimate the probability that a specific solution will achieve the expected performance levels, given the fabrication tolerance of the components. This represents valuable information for mass production, as WPT systems are typically very sensitive to component variations. Besides presenting the toolbox and its functionalities, this article also reports the extensive experimentation that the authors conducted on WPT systems, designed using MatWPT. The results obtained with the toolbox are in excellent agreement with the measurements.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"415-426"},"PeriodicalIF":7.9,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11037555","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Short-Time Thermal Transient Model and Testing Procedure for High Power Density Motors, Such as in Supercar Traction","authors":"Paolo Pescetto;Gaetano Dilevrano;Fausto Stella;Gianmario Pellegrino;Aldo Boglietti","doi":"10.1109/OJIA.2025.3579971","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3579971","url":null,"abstract":"The short-time thermal transient (STTT) test is an efficient and precise method for determining the winding thermal capacitance and winding-to-back-iron thermal resistance in ac motors. Traditionally validated for industrial motors, the STTT procedure involves a brief dc excitation with motor phases connected in series, followed by analysis using a first-order lumped parameter thermal network. However, for traction motor drives where phase terminals may be inaccessible, the standard all-in-series STTT procedure is not feasible. Moreover, in such highly loaded traction motors, the estimated thermal parameters are sensitive to dc excitation duration, making the first-order STTT model unsuitable. This article presents an STTT model of higher order along with an optimized testing sequence and data processing approach, extending the applicability of this method to traction and high-power-density motors. Experimental validation on two commercial supercar traction motors demonstrates the effectiveness of the proposed model and procedure, to be considered an upgrade of wider and more general validity of the existing first-order STTT method.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"391-402"},"PeriodicalIF":7.9,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11037247","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neural Network Enhanced Control of Two-Phase Cooling Systems for Power Electronics Converters","authors":"G. Di Nezio;N. E. Lima Baschera;A. Lidozzi;M. di Benedetto;L. Saraceno;F. Ortenzi;L. Solero;Giuseppe Zummo","doi":"10.1109/OJIA.2025.3579449","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3579449","url":null,"abstract":"The article deals with the control structure and implementation of a fully integrated two-phase cooling (TPC) system for power converters. A suitable testbed has been properly designed and built to perform the experimental campaign for the performance evaluation of the neural network-based control structure applied to an advanced multivariable TPC system. With respect to traditional cooling approaches, the proposed arrangement allows a greater extraction of the heat at a very low flow rate of the cooling fluid, even with standard industrial-grade heat-sinks. The technology could be implemented for the next generation of power electronics converters. The controllability of such a cooling system is still an open issue in many cases, and the proposed approach tries to suggest a feasible approach, which could be implemented on an industrial grade control board.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"382-390"},"PeriodicalIF":7.9,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11034743","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-Stabilization of Grid-Connected Inverters by Means of an Impedance-Based Adaptive Controller","authors":"Joel Filipe Guerreiro;Tiago Davi Curi Busarello;Hildo Guillardi;Igor Alves Maronni;José De A. Olímpio Filho;Helmo K. Morales Paredes;José A. Pomilio","doi":"10.1109/OJIA.2025.3579641","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3579641","url":null,"abstract":"The grid-connected inverter is responsible for exchanging energy between the electrical grid and energy sources, such as photovoltaic and storage. The interconnection stability of these inverters may be addressed via their impedance characteristics, which comprise the control system and the ac filter. In many cases, the stability deteriorates when these devices are placed in weak grids due to the known effects of phase-locked loop and voltage feedforward. <italic>LCL</i>-type ac filters and resonant-based controllers also pose challenges to the stability of the operation. This work proposes an approach to impedance shaping to stabilize <italic>LCL</i>-type grid-connected inverters in nonideal grids with long feeders and disturbing loads. The method relies on regulating the voltage feedforward gain by disturbing and adapting the system based on the distortion of the output current. The technique enables the self-stabilization of the inverter even when an instability is already triggered and without the need for impedance measurements or processor-intensive algorithms. A frequency sweep verification is performed to measure the converter’s impedance and validate it against the theoretical one. An hardware experiment is implemented to evaluate the stability of the converter for large grid impedance variations using the proposed impedance shaping approach.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"366-381"},"PeriodicalIF":7.9,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11034728","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Torque Ripple Minimization in Switched Reluctance Motors With Acoustic Noise Mitigation by Current Waveform Shaping","authors":"Fares S. El-Faouri;Yifei Cai;Shou Qiu;Chenyang Lyu;Jacob Bayless;Kyohei Kiyota;Wejdan Abu Elhaija;Akira Chiba","doi":"10.1109/OJIA.2025.3579150","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3579150","url":null,"abstract":"This article presents a novel method for torque ripple reduction in switched reluctance motors (SRMs). The proposed method relies on current waveform shaping. The shaped current profile is an adjusted version of a current waveform in the literature that reduces the acoustic noise of SRMs. The resulting proposed current flattens the torque waveform in addition to a significant reduction in acoustic noise. The proposed method is compared with several conventional square currents, as well as with the currents that are dedicated to acoustic noise reduction from the literature. The primary contributions of this article are the simultaneous minimization of torque ripple and acoustic noise through current waveform shaping, as well as the application of the current-waveform refinement method specifically for torque ripple reduction. Experiments and finite element analysis were implemented to achieve the comparisons in terms of current, torque, radial force, stator vibration, and sound pressure level.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"403-414"},"PeriodicalIF":7.9,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11032126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Review on the Lifetime Estimation Methods of XLPE Power Cables","authors":"Mohammad AlShaikh Saleh;Alamera Nouran Alquennah;Ali Ghrayeb;Shady S. Refaat;Haitham Abu-Rub;Sunil P. Khatri","doi":"10.1109/OJIA.2025.3578884","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3578884","url":null,"abstract":"This article presents a review of the aging mechanisms and lifetime estimation methodologies for medium and high-voltage cross-linked polyethylene (XLPE) cables under harsh environmental service conditions, which are integral to the reliability and safety of modern electrical power systems. This article first briefly delves into the various aging mechanisms experienced by power cables, describing the physical and chemical processes that underlie the degradation of XLPE cable insulation over time. The discussion then extends to various life models: physical life models that describe material property changes under operational stresses, phenomenological life models and multistress models that consider the concurrent impact of multiple stressors on cable aging, and probabilistic and reliability lifetime models, which introduce a statistical perspective to the remaining lifetime estimation, essential for risk assessment in power systems. The review also explores frequency-based life models that investigate the effects of operational frequencies on cable longevity. A significant focus is placed on enlargement laws and electrical treeing life models, shedding light on specific degradation phenomena pertinent to high-voltage insulation. This article next examines artificial intelligence–based life models, a cutting-edge approach that integrates traditional knowledge with advanced computational techniques, such as machine learning and data analytics, for enhanced prediction of cable life expectancy. Future research directions are also proposed in this article, which proposes a finite element method-AI Assisted partial discharge analysis and remaining useful lifetime estimation model for XLPE cables. This comprehensive review aims to serve as an indispensable resource for engineers and researchers, offering a holistic understanding of the state-of-the-art and future directions in the domain of cable life estimation and prognostics.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"445-489"},"PeriodicalIF":7.9,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030829","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EMI-Silent Operation of Triple Active Bridge Converters With Online Model-Free ZVS Optimization and RMS Current Reduction","authors":"Ahmed A. Ibrahim;Michele Darisi;Tommaso Caldognetto;Davide Biadene;Paolo Magnone;Paolo Mattavelli","doi":"10.1109/OJIA.2025.3565905","DOIUrl":"https://doi.org/10.1109/OJIA.2025.3565905","url":null,"abstract":"Triple active bridge converter, an isolated multiport converter, connects three dc ports via a three-terminal high-frequency transformer, enabling zero voltage switching (ZVS) without the need for additional snubber circuits. However, under certain loading conditions ZVS is lost and rms currents increase. This article introduces a model-free, online optimization method using multi-dimensional ripple correlation control (MD-RCC) to ensure ZVS operation while reducing rms currents. The MD-RCC is an online model-free approach, providing robust performance against parameter uncertainties or operational variations. Two distinct methods are utilized to evaluate the cost function online. The first method involves the oversampling of the transformer currents. The second approach relies on the correlation between the EMI noise level and the hard switching of the devices, providing a simpler alternative to oversampling techniques. The proposed MD-RCC technique has been validated through both simulation and experimental testing on a 5 kW prototype, demonstrating its efficacy in optimizing ZVS, reducing EMI noise, and rms currents.","PeriodicalId":100629,"journal":{"name":"IEEE Open Journal of Industry Applications","volume":"6 ","pages":"249-261"},"PeriodicalIF":7.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10980478","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}