{"title":"A Novel Battery-Integrated Transformer-Less Microinverter for Solar PV Applications","authors":"Arup Ratan Paul;Kishore Chatterjee","doi":"10.1109/JESTIE.2026.3669653","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3669653","url":null,"abstract":"Solar photovoltaic (PV) microinverters are typically designed to be operated in grid-connected mode. By interfacing a battery with a microinverter, it is possible to minimize the wide variations in power drawn from solar PV module. In this article, a battery-integrated transformer-less solar PV microinverter is proposed, which can integrate a battery having voltage lower than that of the PV module. Depending on the available solar irradiation and the battery’s state of charge, it simultaneously regulates the battery current and the current drawn from the PV module. Although it is suitable for getting interfaced with a 220 V AC grid, it can also operate in a standalone mode in the absence of the grid. The proposed microinverter has inherent power decoupling capability, and the existence of double grounding ensures that there is no leakage current flow. In-depth analysis of the proposed scheme is carried out. An appropriate control algorithm is developed for operating the microinverter under different conditions. The feasibility of the proposed scheme is validated by performing detailed experimental studies on the prototype developed for the purpose.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"987-997"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148517131","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}
Chaofan Cui;Tianmin Liao;Linxiao Gong;Junzhong Xu;Feng Zhang;Yong Wang
{"title":"A Hybrid ASL/PSC Converter With Oscillation Mitigation Across Switches and Reduced Voltage Stress","authors":"Chaofan Cui;Tianmin Liao;Linxiao Gong;Junzhong Xu;Feng Zhang;Yong Wang","doi":"10.1109/JESTIE.2026.3668377","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3668377","url":null,"abstract":"In photovoltaic system, high voltage gain DC–DC converters are required. Hybrid active switched inductor (ASL) / passive switched capacitor (PSC) DC–DC converters are suitable for photovoltaic applications due to their high voltage gain characteristics. However, when the two inductors or the two parasitic capacitors of the switches in such ASL/PSC hybrid converters are mismatched, significant voltage oscillation occur across the switches, which increase the switch voltage stress. In addition, the ground potential difference between the input and output ports is not constant, which increases EMI issues. To address these issues, this article proposes a novel hybrid ASL/PSC converter. The proposed converter has no switch voltage oscillation and thus reduces the switch voltage stress. Moreover, the proposed converter has a constant ground potential difference. It also exhibits high voltage gain, lower voltage stress across the output diodes, and higher efficiency. To validate the theoretical analysis, a laboratory prototype was built and tested at an input voltage range of 20 V–60 V, an output voltage of 400 V, and a rated power of 200 W.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1099-1111"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148511731","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}
Gongde Yang;Yuhang Wu;Yunjing Yang;Peng Wang;Mingyao Lin
{"title":"Discrete Space Vector Modulation-Based Robust Predictive Current Control for PMSM","authors":"Gongde Yang;Yuhang Wu;Yunjing Yang;Peng Wang;Mingyao Lin","doi":"10.1109/JESTIE.2026.3688287","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3688287","url":null,"abstract":"To address the issues of high computational complexity and insufficient parameter robustness of existing discrete space vector modulation-based model predictive current control (DSVM-MPCC) in permanent magnet synchronous motor (PMSM), a discrete space vector modulation-based robust predictive current control (DSVM-RPCC) is proposed in this article. The proposed method expands the voltage vector set using DSVM while reducing computational complexity through deadbeat-based preselection mechanism. A closed-loop current prediction correction mechanism with PI-regulated error feedback compensates for steady-state errors induced by motor parameter mismatches. Additionally, an online inductance identification based on recursive least squares with forgetting factor mitigates current ripple caused by inductance variations. Comparative experimental results demonstrate that the proposed DSVM-RPCC maintains the fast dynamic response of existing DSVM-MPCC while achieving superior steady-state performance by expanding the voltage vector set. Furthermore, the method eliminates steady-state tracking errors during PM flux linkage/stator resistance variations and reduces inductance-induced current oscillations, validating its superior parameter robustness without compromising dynamic performance.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"977-986"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148512462","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":"Transformation-Driven Hellinger Distance Framework for Electricity Theft Detection in Advanced Metering Infrastructure","authors":"Sandeep Kumar Singh","doi":"10.1109/JESTIE.2026.3677459","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3677459","url":null,"abstract":"The integration of sensing, computing, and communication technologies has improved the efficiency and flexibility of modern power grids. However, it has also increased the vulnerability of advanced metering infrastructure (AMI) to cyber-physical threats, particularly energy theft. This article proposes a novel, transformation-driven detection framework based on the Hellinger distance (HD) to identify anomalies in daily electricity consumption at the individual smart meter level. By applying log and antilog transformations to measurement variations, the method enhances distribution separability, improving detection accuracy. The HD metric is then used to quantify statistical deviations between historical and real-time consumption patterns. The proposed scheme operates without requiring system-wide observability or state estimation, making it lightweight and scalable. Experimental validation using real-world datasets from the Irish Social Science Data Archive (ISSDA) and the State Grid Corporation of China (SGCC) smart meter database demonstrates detection rates between 83% and 100% across multiple attack scenarios. Compared with existing statistical and ML-based methods, the proposed approach achieves higher detection rates while remaining computationally efficient, confirming its effectiveness and suitability for practical AMI deployments.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1378-1389"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148517689","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":"IEEE Industrial Electronics Society Information","authors":"","doi":"10.1109/JESTIE.2026.3700878","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3700878","url":null,"abstract":"","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"C4-C4"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11602600","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148443317","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 Frequency-Doubling SVPWM Modulation and Control Strategy for Vienna Rectifiers Under Faulty Grid Conditions","authors":"Wenjie Zhu;Xintao Yang;Shuo Li;Zhiyu Wang;Keliang Zhou","doi":"10.1109/JESTIE.2026.3671603","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3671603","url":null,"abstract":"The Vienna rectifier has been increasingly adopted due to its high reliability and high power density. Consequently, the requirements for its safety and reliability have become more stringent. The increasing complexity of power systems and emerging load types are leading to more frequent voltage imbalances and phase-loss faults in the grid. A three-phase imbalance fault can be controlled by separating the positive- and negative-sequence components of the grid voltage, ensuring stable operation of the Vienna rectifier. However, conventional control methods become ineffective in regulating the system when a phase-loss fault occurs in the power grid. In this article, the operating modes of the Vienna rectifier under phase-loss conditions and the causes of DC-link midpoint voltage imbalance are analyzed. A frequency-doubling space vector pulsewidth modulation strategy is proposed for grid phase-loss conditions, which effectively maintains the DC-link midpoint voltage balance while reducing harmonic distortion. Additionally, a phase-loss detection method based on positive and negative sequence analysis is adopted. Furthermore, a dual-loop control strategy combining proportional-integral control and fuzzy proportional-resonant control is developed to ensure stable operation of the system under phase-loss conditions. Finally, both simulation and experimental results are provided to validate the effectiveness of the proposed phase-loss modulation and control strategy for the Vienna rectifier.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1077-1088"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148511729","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":"Performance Evaluation of a Lab-Scale Type-IV WECS With a Sliding Mode Controller by Emulating a Wind Turbine","authors":"Abhishek Kumar;Prashant Surana;Anubrata Dey","doi":"10.1109/JESTIE.2026.3676498","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3676498","url":null,"abstract":"This article presents the design and experimental validation of a laboratory prototype wind turbine emulator for a Type-IV wind energy conversion system. This setup employs a DC motor coupled with a permanent-magnet synchronous generator, interfaced to the grid through a three-level neutral-point-clamped (NPC) back-to-back converter. Optimal torque control combined with a super-twisting sliding mode control (ST-SMC) is employed for machine-side current regulation to ensure maximum power extraction. On the grid side, a robust ST-SMC-based DC-link voltage controller is designed for effective control of the grid-side converter. In addition, a novel ST-SMC-based neutral-point balancing strategy is proposed for the NPC converter, offering faster convergence and stronger disturbance rejection than conventional methods. Experimental results demonstrate that the ST-SMC limits DC-link overshoot to 25% during reference step changes [compared to 80% with proportional–integral (PI) control] and to 11% under wind variations (compared to 25% with PI). The neutral-point balancing scheme achieves a convergence time of 260 ms, significantly outperforming existing approaches. Furthermore, when applied jointly for DC-link regulation and neutral-point balancing, the proposed method yields the lowest total harmonic distortion of 3.8%, confirming its superior performance over the traditional PI control.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"998-1008"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148512394","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}
Mohamed A. Hafez;Abdallah F. El-Hamalawy;Amgad A. El-Deib;Hatem H. Zeineldin;Hany E. Z. Farag
{"title":"Coordinated Renewable Power Smoothing Using Local and Remote Hydrogen Electrolysis Facilities","authors":"Mohamed A. Hafez;Abdallah F. El-Hamalawy;Amgad A. El-Deib;Hatem H. Zeineldin;Hany E. Z. Farag","doi":"10.1109/JESTIE.2026.3688276","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3688276","url":null,"abstract":"As variable renewable generation increases, power systems require new strategies to mitigate supply fluctuations and maintain grid stability. Hydrogen electrolysis facilities (HEFs) offer a promising dual-purpose solution, producing clean hydrogen while acting as flexible loads that support grid balancing. However, prior studies have largely relied on simplified steady-state models and colocated configurations, overlooking the dynamic limitations of electrolyzers and the potential of coordinating geographically distributed HEFs. This article presents the first renewable power smoothing (RS) framework that coordinates local and remote HEFs, based on Alkaline (Ak) and proton exchange membrane (PEM) technologies, while accounting for their distinct dynamic response capabilities. A computationally efficient, real-time setpoint allocation algorithm is developed to assign smoothing tasks based on proximity to the renewable source(s) while enforcing HEFs operational constraints. The proposed framework is validated on the New England 39-bus benchmark system in MATLAB/Simulink. Results show that PEM electrolyzers are well-suited for rapid fluctuations, while Ak units contribute effectively to slower variations when appropriately coordinated. Communication delays are also analyzed, underscoring the need for low-latency channels. This work, thus, provides the first practical coordination strategy for distributed HEFs, enabling their effective participation in grid-scale RS and supporting their integration into resilient, low-carbon power systems.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"884-894"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148512785","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":"Current Commutation in Direct AC/AC SST Without High Frequency Sensing","authors":"Archit Joshi;Shabari Nath","doi":"10.1109/JESTIE.2026.3695815","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3695815","url":null,"abstract":"Direct AC/AC SST is single-stage SST consisting of matrix converters and characterized by high frequency operation, high efficiency and high power density. Proper current commutation in the matrix converters of direct AC/AC SST is essential for reliable operation. False commutation leads to high amplitude voltage spikes increasing semiconductor switch voltage stress, and distortion of HFT current, load voltages and load currents. The source-side converter of direct AC/AC SST requires high frequency current sensing and simultaneous sampling ADC (with high sampling rates) based field programmable gate array(FPGA)/digital signal processor (DSP) controllers for four step current commutation. At higher switching frequencies, the physical delays associated with current sensor and auxiliary circuits lead to false commutation making the SST operation dependent upon the quality of sensing circuits. Existing literature on direct AC/AC SST does not explore the problems with four-step current commutation in the source-side converter. This paper proposes an implementation method for four-step current commutation of the source-side converter of direct AC/AC SST without high frequency current sensing. The proposed method also takes into account the no-load operation of the SST which is not considered in the existing literature. The proposed method works with low frequency sensors without requiring any additional circuits. With the proposed method, the total number of sensors for SST operation are reduced which makes SST implementation with FPGA/DSP controllers with multiplexed ADCs possible. This in turn reduces the implementation cost and complexity as well as increases the reliability of direct AC/AC SST. The proposed method is verified experimentally on a laboratory prototype of direct AC/AC SST.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"1206-1218"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148513854","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":"Toward Carbon-Neutral Energy Transition: A Multiobjective Optimization Framework for Hydrogen-Integrated Demand-Side Management","authors":"Sampatirao Nanibabu;Shakila Baskaran;Prakash Marimuthu","doi":"10.1109/JESTIE.2026.3687039","DOIUrl":"https://doi.org/10.1109/JESTIE.2026.3687039","url":null,"abstract":"The rapid integration of renewable energy sources, electric vehicles (EVs), and flexible demand technologies has made demand-side management (DSM) a vital element of modern smart grid operation. However, achieving cost-effective, emission-conscious, and consumer-friendly scheduling remains challenging due to the unpredictable nature of renewable energy production and consumer habits. Although hydrogen is considered a green and sustainable energy carrier, most global production still depends on fossil-based sources. This limits its decarbonization potential, emphasizing the need to promote renewable-based hydrogen generation. This article proposes a novel multiobjective green anaconda optimization (MOGAO) framework for optimizing DSM in a renewable-integrated microgrid. The framework simultaneously minimizes peak load, operational cost, and carbon emissions while maximizing consumer incentives, thereby achieving a balanced tradeoff between economic, environmental, and social objectives. The proposed system integrates photovoltaic and wind generation, a battery energy storage system, EVs with vehicle-to-grid functionality, and a green hydrogen energy system for long-duration energy storage. The MOGAO algorithm employs adaptive Pareto optimization to coordinate electricity pricing, hydrogen production, and degradation-aware dispatch under a 24-h time-of-use tariff structure. Simulation results demonstrate significant improvements over benchmark methods (PSO, WOA, and green anaconda optimization), achieving 38.36% peak load reduction, 42.69% cost savings, and 67.56% emission reduction. Additionally, the incentive–comfort satisfaction ratio (1.5685) indicates enhanced user participation and fairness. Overall, the proposed MOGAO-based DSM framework offers a scalable, hydrogen-supported, and carbon-neutral solution for next-generation smart grids, enabling sustainable and resilient energy transition pathways.","PeriodicalId":100620,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Industrial Electronics","volume":"7 3","pages":"851-861"},"PeriodicalIF":4.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148515192","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}