{"title":"An Improved Filament-Based Method to Estimate Turn-to-Turn Inductance Matrix of Air Core Windings","authors":"Parvathy Saji;Ashiq Muhammed","doi":"10.1109/JESTIE.2026.3675331","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3675331","url":null,"abstract":"Precise modeling of turn-to-turn inductance (or partial inductance) is crucial for the analysis of coils and windings used in high-frequency applications, such as power transformers and wireless power transfer systems. Traditional mutual inductance calculations, based on Maxwell’s equations and elliptical integrals, often neglect proximity effects, resulting in reduced accuracy. This article introduces a novel and computationally efficient method that extends filament-based techniques to compute the turn-by-turn inductance matrix, accounting for the current redistribution within conductors. This improved approach effectively captures proximity effects, providing more accurate inductance estimates compared to conventional methods, while offering a computationally less demanding alternative to Finite Element analysis (FEM). Theoretical validation, practical implementation, and experimental results demonstrate the accuracy of the method and its broad applicability for inductance modeling in various high-frequency coil and winding configurations, including noncircular geometries such as rectangular windings.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"940-950"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148515676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Computationally Efficient Battery Modeling and Fast Charging Strategies for Fuel Cell-Battery Hybrid Application","authors":"Shivam Gupta;Shakthi Prasad D;Sheron Figarado;Bidhan Pramanick","doi":"10.1109/JESTIE.2026.3697654","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3697654","url":null,"abstract":"This article highlights the critical role of Li-ion battery integration and the development of control-oriented models in hybrid fuel cell-battery systems for electric vehicles and stationary power application. While fuel cell provide high energy density and clean power generation, they suffer from slow dynamic response (8–29 s), experiencing voltage undershoots and current overshoots during rapid load transients. Conversely, Li-ion batteries offer fast transient response and high power density. Hence, integrating a Li-ion battery with a fuel cell can significantly enhance the systems transient response and overall performance. Within this integrated framework, the battery controller model plays a crucial role, requiring computationally efficient and accurate representations of the battery. In this work, the focus is specifically on the battery component modeling, its fast charging current profiles and its internal parameter estimation within the Li-ion battery-fuel cell hybrid architecture. The battery model derived here is an electrochemical state space based on the enhanced single-particle model. This model can help in predicting accurate battery behavior and, thus, helps in optimal power distribution between battery and the fuel cell during transient events. The solid phase dynamics of the reduced state-space model are derived from the third order Padé approximated transfer functions, and the model assumes that electrochemical parameters are lumped with uniform exchange current densities. Furthermore, this model is implemented to analyze fast charging current profiles for Li-ion batteries. The current profiles considered in this study are constant current, pulse and parabolic, for fast charging applications. Battery internal parameters, such as lithium solid phase concentration, cell voltage profile, voltage drop across electrolyte, and cell resistance, are also obtained for the mentioned charging current profiles using the suggested model, which is helpful for analysis, of internal dynamics of the battery. Furthermore, to compare the recommended models computation time with full electrochemical model, a 3-D pouch type cell is developed in COMSOL Multiphysics. From the analysis, it can be concluded that the model is computationally fast, accurate, and integrating the proposed model for controlling battery dynamics along with incorporating advanced charging strategies within hybrid fuel cell-battery systems can serve as an intelligent power management approach. Such integration has the potential to extend component lifetimes, optimizes hydrogen consumption and enhance the overall performance of the system.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"895-904"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148515640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Single-Phase Non-Isolated Buck Boost Integrated On-Board Charger With G2V, V2H, V2V, and Minimal Leakage Current","authors":"Gerald Brakoh;Ashraf Ali Khan;Hafiz Furqan Ahmed","doi":"10.1109/JESTIE.2026.3680446","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3680446","url":null,"abstract":"This article presents a single-stage integrated onboard battery charger for all-wheel drive electric vehicles (EVs) that combines a dual three-phase inverter and two three-phase permanent magnet synchronous motors (PMSMs) into a single-phase charging system with a common ground. The charger is realized by including a half-bridge and a small film capacitor into the existing three-phase inverter. The single-phase grid is connected to the neutral of the first motor and the midpoint of the added half-bridge to ensure a common ground topology that prevents issues with leakage current. In the setup, the first motor’s windings function as a grid filter inductor, while the second motor’s windings and the output capacitor function as an output filter. In this system, only two relays are used to switch between the traction and charging modes, and the overall additional mass of the system is negligible. Due to the nature of PMSMs in integrated charging, torque can be produced in the grid-to-vehicle (G2V) and vehicle-to-home (V2H) operations. A torque elimination control method is also proposed to ensure the EV can charge safely without moving. The integrated charger can also perform vehicle-to-vehicle (V2V) operations to charge other light EVs (48 to 120 V). In G2V and V2H modes, the proposed charger operates with zero torque, unity power factor, over 90% peak efficiency, less than 5% total harmonic distortion, and a very low leakage current of less than 10mA. A detailed theoretical analysis is conducted for all modes of operation, and the proposed control methods are presented. Simulation and experimental results are provided for a 1 kW prototype to evaluate the performance of the proposed system.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1286-1299"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148517682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Guest Editorial Energy Transition Analysis and Technologies With Hydrogen Solutions and Accessories","authors":"Akshay Kumar Rathore;Samir Kouro;Chunyan Lai;Elena Breaz","doi":"10.1109/JESTIE.2026.3705903","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3705903","url":null,"abstract":"","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"848-850"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11579735","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148512171","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":"Design and Analysis of a High Gain ZVT Quasi Z-Source Boost Converter Without Using Auxiliary Network","authors":"Bathala Venugopal;Mummadi Veerachary","doi":"10.1109/JESTIE.2026.3684099","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3684099","url":null,"abstract":"In this article, a high gain soft-switching quasi Z-source (HGSSQZS) boost converter is proposed. The proposed HGSSQZS converter employs a switched-capacitor network and a Coupled Inductor (CI) to enhance the voltage gain at low duty ratio. Some of the components of HGSSQZS (output capacitances of main switches, leakage inductance of CI, and by-pass path switch <italic>S</i><sub>3</sub>) form the auxiliary zero-voltage transition (ZVT) network. The leakage inductance of CI is utilized as resonating inductor of auxiliary network to achieve soft-switching operation for the main switches. The main switches (<italic>S</i><sub>1</sub> and <italic>S</i><sub>2</sub>) are turned-<sc>on</small> under ZVT and turned-<sc>off</small> at controlled “<italic>dv/dt</i>.” This enables the converter to eliminate the parasitic capacitor turn-<sc>on</small> losses and switch transition losses. Furthermore, the switch (<italic>S</i><sub>3</sub>) is turned-<sc>on</small> in advance for initiating the ZVT operation of main switches (<italic>S</i><sub>1</sub> and <italic>S</i><sub>2</sub>). Additionally, the reverse recovery loss of main diodes (<italic>D</i><sub>1</sub> and <italic>D</i><sub>2</sub>) is eliminated due to zero current switching. Moreover, the leakage inductance energy is recovered and transferred to the load. The HGSSQZS converter offers several additional advantages, including common ground, low component count, low-voltage stress on devices, and improved efficiency. A detailed steady-state analysis, component selection, and dynamic performance of HGSSQZS under varying load conditions are presented. To effectively assess the performance of the proposed HGSSQZS converter, a 190 W, 36 to 380 V experimental prototype is developed. The experiment results align closely with the analytical predictions, demonstrating the converter’s potential efficacy.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1112-1126"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148512128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rômulo A. L. V. de Omena;Danilo F. S. Santos;Angelo Perkusich
{"title":"Decoupling Planning and Control for Resilient AGV Navigation: A Two-Tier Edge-MPC Approach","authors":"Rômulo A. L. V. de Omena;Danilo F. S. Santos;Angelo Perkusich","doi":"10.1109/JESTIE.2026.3695633","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3695633","url":null,"abstract":"The flexibility of automated guided vehicle fleets in Industry 4.0 environments is compromised by network degradation, which impacts navigational resilience. Building upon the conceptual framework introduced in previous research, this article provides a substantive advancement through a two-tier, edge-based architecture that utilizes a predictive buffering mechanism. The core innovation lies in the systematic validation of this architecture via multiscenario simulations—ranging from production lines to complex logistics centers—and the quantitative revelation of the intrinsic relationship between edge computational load and scene complexity. Furthermore, we provide empirical evidence of the effectiveness of a limited nearest-neighbor constraint strategy as a scalable optimization approach. Results demonstrate that the framework maintains operational persistence under network outages while enabling the use of low-cost, offering a high-fidelity blueprint for scalable and resilient smart manufacturing.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1367-1377"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148513204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Prashant Kumar;Surya Prakash;Ali Arzani;Satish M. Mahajan;Ranjan Kumar Behera
{"title":"Lyapunov-Based Current Control With Active Damping for LLCL-Filtered Single-Phase Inverters","authors":"Prashant Kumar;Surya Prakash;Ali Arzani;Satish M. Mahajan;Ranjan Kumar Behera","doi":"10.1109/JESTIE.2026.3692234","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3692234","url":null,"abstract":"Grid-following inverter (GFLI) systems equipped with LLCL filters offer superior harmonics attenuation but suffer from significant resonance issues and stability challenges under varying grid conditions. Traditional damping strategies, such as proportional-resonant controllers with active or passive damping, partially address these issues but often introduce added system complexity, increased losses, or degraded performance due to digital control delays. Moreover, these approaches typically lack guarantees of global asymptotic stability during transient disturbances. To overcome these limitations, this article proposes a novel control strategy based on Lyapunov function-based current (LFBC) control for LLCL-filtered GFLI systems. The proposed approach ensures global asymptotic stability, robust dynamic performance, and effective resonance suppression without relying on passive loss components. The control framework integrates an active damping mechanism and a PR controller for reference signal generation, enhancing adaptability and eliminating the need for differentiation or explicit knowledge of filter parameters. Theoretical analysis using root-locus and Bode plots validates the controllerś stability, and comprehensive design guidelines are provided. The experimental findings confirm that the presented LFBC controller markedly improved stability, fast dynamic response, and grid current response while minimizing total harmonic distortion.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1247-1259"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148512173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Power Quality Enhancement Using Dynamic Voltage Restorer With Echo State Network and Type-2 Fuzzy Logic Control","authors":"Prashant Kumar;Sabha Raj Arya;Shailendra Kumar","doi":"10.1109/JESTIE.2026.3670180","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3670180","url":null,"abstract":"This research proposes an echo-state network (ESN)–driven strategy to improve power quality (PQ) in utility grids through dynamic voltage restorer (DVR) implementation. With the growing integration of nonlinear or critical loads, PQ degradation has become a pressing concern. The ESN-based algorithm efficiently estimates fundamental voltage quantities from a disturbed grid and supports PQ improvement. The proposed approach integrates an ESN for real-time estimation of fundamental voltage components and an adaptive interval type-2 fuzzy logic (IT2 FLC) controller for DC-link voltage stabilization. This dynamic controller mitigates voltage stress and maintains a robust DC voltage level, crucial for generating the reference load voltage. The controller gains are optimized using the bioinspired gorilla troops algorithm (GTA), which enables a low computational burden and enhanced adaptability to grid disturbances. Additionally, it is noteworthy that the proposed technique reduces the values of settle and rise time (0.15 s, 0.19 s), overshoot and undershoot (3.28%, 3.56%), and recovery time to 0.421 s. These statistics indicate that it outperforms the traditional synchronous reference frame-proportional integral (SRF-PI) and LMS-IT1 FLC strategies. The hybrid ESN and GTA-IT2 FLC framework allows online gain tuning, ensuring sinusoidal load voltage and a significant reduction in total harmonic distortion from 12.19% to 2.74%. The proposed method delivers superior performance even in disturbed grid conditions, offering fast rise time, minimal overshoot, and less steady-state errors compared to conventional SRF-PI and LMS-fuzzy logic controller. The findings obtained from a scaled-down prototype of DVR highlight the approach's effectiveness.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1089-1098"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148512786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Power Loss and Efficiency Comparison of Two-Level and Three-Level NPC Inverter Fed Drives Employing Passive $dv/dt$ Filter","authors":"Shambhunath Dutta;Apurv Kumar Yadav","doi":"10.1109/JESTIE.2026.3691394","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3691394","url":null,"abstract":"In recent times, with the availability of GaN technology, it is important to consider its usage in EV drives, particularly in two-wheelers, which require low voltage and high current (LVHC). This article presents a comparative analysis of power loss and efficiency among various two-level inverter topologies [Si-IGBT, Si-<sc>mosfet</small>, SJ-<sc>mosfet</small>, SiC-<sc>mosfet</small>, GaN (GS66516 T)] and three-level neutral point clamped (NPC) inverter topologies [Si-IGBT, Si-<sc>mosfet</small>, SJ-<sc>mosfet</small>, SiC-<sc>mosfet</small>, GaN (GS66516 T), EPC GaN[ for LVHC integrated motor drives, employing two different <inline-formula><tex-math>$frac{dv}{dt}$</tex-math></inline-formula> filter configurations: a diode-clamped <inline-formula><tex-math>$LC$</tex-math></inline-formula> (DCLC) filter and an <inline-formula><tex-math>$RLC$</tex-math></inline-formula> filter. The comparison is carried out in the PLECS platform for a 120 V, 8 kW, 50 Hz induction motor. Simulation results indicate that the Si-<sc>mosfet</small>-based two-level inverter without a <inline-formula><tex-math>$frac{dv}{dt}$</tex-math></inline-formula> filter exhibits higher efficiency up to 4.6 kW. Beyond this operating point, the EPC GaN-based three-level NPC inverter with a DCLC-based <inline-formula><tex-math>$frac{dv}{dt}$</tex-math></inline-formula> filter demonstrates superior efficiency compared to other configurations. Experimental investigations are conducted on the same motor at a loading condition of 1.2 kW for selected two-level and three-level inverter configurations. The experimental results confirm the trends observed in the simulations, showing a similar pattern in power loss and efficiency across the tested configurations.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1196-1205"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148515166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Redundant Leg-Based Fault-Tolerant PV Grid Integration System","authors":"Vikash Kumar Raushan;Sankar Peddapati;Balram Kumar","doi":"10.1109/JESTIE.2026.3693728","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3693728","url":null,"abstract":"This article presents a fault-tolerant control strategy for a two-stage, three-phase photovoltaic (PV) grid-connected system aimed at improving reliability through effective fault management in both the inverter and DC–DC converter stages. The system consists of a DC–DC boost converter, a three-phase inverter, and a redundant switching unit that enables continuous operation during power switch open-circuit faults, including simultaneous multiswitch fault conditions. The proposed scheme is experimentally validated on a 2 kW prototype comprising a 2 kWp (<italic>kilowatt-peak</i>) PV system, a Semikron converter switch power stack, and an FPGA-based controller. A hill-climbing based maximum power point tracking algorithm is implemented using only grid current measurements, eliminating the need for PV-side voltage and current sensors and simplifying the system architecture. Experimental results demonstrate efficient maximum power extraction, reliable grid synchronisation, and effective fault management under both single-switch and multiswitch fault conditions, confirming the suitability of the proposed approach for stable and efficient PV grid integration in practical applications.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1023-1035"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148517133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}