Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3578171
{"title":"IEEE Industry Applications Society Information","authors":"","doi":"10.1109/TIA.2025.3578171","DOIUrl":"https://doi.org/10.1109/TIA.2025.3578171","url":null,"abstract":"","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 4","pages":"C2-C2"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11069366","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3585858
Ahmed M. Elkholy;Dmitry I. Panfilov;Michael G. Astachev
Single line-to-ground (SLG) faults in power cables connected between delta-connected transformers can lead to severe overvoltages up to 1.5 p.u. and high fault currents exceeding 2000 A, posing significant risks to cable insulation and system stability. This paper proposes an Arc Suppression Device (ASD) that effectively mitigates these adverse effects by injecting zero-sequence voltage into the ground path. Through comprehensive modeling and simulation of a four-bus system using MATLAB Simulink, the ASD reduces fault currents by 97.8% . The implementation of intelligent control logic further enhances performance by reducing voltage restoration time from 0.7 s to just 0.05 s - a 92.9% improvement. The results conclusively show that the ASD not only maintains power quality and system resilience during faults but also extends equipment lifespan by minimizing electrical and thermal stresses. These quantitative improvements represent a significant advancement in power system protection, particularly for delta-connected transformer configurations.
{"title":"Arc Suppression Devices for Mitigating Single Line-to-Ground Faults and Enhancing Power System Resilience","authors":"Ahmed M. Elkholy;Dmitry I. Panfilov;Michael G. Astachev","doi":"10.1109/TIA.2025.3585858","DOIUrl":"https://doi.org/10.1109/TIA.2025.3585858","url":null,"abstract":"Single line-to-ground (SLG) faults in power cables connected between delta-connected transformers can lead to severe overvoltages up to 1.5 p.u. and high fault currents exceeding 2000 A, posing significant risks to cable insulation and system stability. This paper proposes an Arc Suppression Device (ASD) that effectively mitigates these adverse effects by injecting zero-sequence voltage into the ground path. Through comprehensive modeling and simulation of a four-bus system using MATLAB Simulink, the ASD reduces fault currents by 97.8% . The implementation of intelligent control logic further enhances performance by reducing voltage restoration time from 0.7 s to just 0.05 s - a 92.9% improvement. The results conclusively show that the ASD not only maintains power quality and system resilience during faults but also extends equipment lifespan by minimizing electrical and thermal stresses. These quantitative improvements represent a significant advancement in power system protection, particularly for delta-connected transformer configurations.","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"62 1","pages":"596-607"},"PeriodicalIF":4.5,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3578175
{"title":"IEEE Transactions on Industry Applications Information for Authors","authors":"","doi":"10.1109/TIA.2025.3578175","DOIUrl":"https://doi.org/10.1109/TIA.2025.3578175","url":null,"abstract":"","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 4","pages":"C4-C4"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11069370","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3578217
{"title":"IEEE Industry Applications Society Information","authors":"","doi":"10.1109/TIA.2025.3578217","DOIUrl":"https://doi.org/10.1109/TIA.2025.3578217","url":null,"abstract":"","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 4","pages":"C2-C2"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11069371","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3585869
S. A. Saleh;E. W. Zundel;J. Meng;M. Bourque;G. Young-Morris;E. F. S. Hill;S. Brown
Geomagnetic disturbances trigger quasi-dc currents that flow through grounding circuits into power systems, mostly through power transformers. Geomagnetically-induced currents (GICs) can cause severe harmonic distortions, disruption in reactive power flow, and/or thermal damage to power transformers. These adverse effects of GIC events on power transformers depend on the GIC magnitude, transformer core design, grounding circuit, and winding configuration. This paper analyzes the effects of grounding circuit designs on the adverse impacts of GIC flows in power transformers. These effects are analyzed through experimental tests carried out using laboratory $3phi$, multi-core power transformers. Experimental tests are performed for several grounding circuit designs for the test power transformers. Normal, magnetizing inrush, line-to-line, and line-to-neutral fault conditions are conducted for each tested grounding circuit design. Results of experimental tests show that grounding circuits with low impedance have minor effects on the GIC flows, while grounding circuits with high impedance tend to reduce the magnitude of the GIC. In addition, test results demonstrate that grounding circuits have little influence on the harmonic distortion (mainly the $2{text{nd}}$ harmonic component) created by a GIC flow.
{"title":"Impacts of Grounding Impedance on Second Harmonic Components Caused by GIC Flows in Power Transformers","authors":"S. A. Saleh;E. W. Zundel;J. Meng;M. Bourque;G. Young-Morris;E. F. S. Hill;S. Brown","doi":"10.1109/TIA.2025.3585869","DOIUrl":"https://doi.org/10.1109/TIA.2025.3585869","url":null,"abstract":"Geomagnetic disturbances trigger quasi-dc currents that flow through grounding circuits into power systems, mostly through power transformers. Geomagnetically-induced currents (GICs) can cause severe harmonic distortions, disruption in reactive power flow, and/or thermal damage to power transformers. These adverse effects of GIC events on power transformers depend on the GIC magnitude, transformer core design, grounding circuit, and winding configuration. This paper analyzes the effects of grounding circuit designs on the adverse impacts of GIC flows in power transformers. These effects are analyzed through experimental tests carried out using laboratory <inline-formula><tex-math>$3phi$</tex-math></inline-formula>, multi-core power transformers. Experimental tests are performed for several grounding circuit designs for the test power transformers. Normal, magnetizing inrush, line-to-line, and line-to-neutral fault conditions are conducted for each tested grounding circuit design. Results of experimental tests show that grounding circuits with low impedance have minor effects on the GIC flows, while grounding circuits with high impedance tend to reduce the magnitude of the GIC. In addition, test results demonstrate that grounding circuits have little influence on the harmonic distortion (mainly the <inline-formula><tex-math>$2{text{nd}}$</tex-math></inline-formula> harmonic component) created by a GIC flow.","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"62 1","pages":"617-627"},"PeriodicalIF":4.5,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146006879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3578221
{"title":"IEEE Transactions on Industry Applications Information for Authors","authors":"","doi":"10.1109/TIA.2025.3578221","DOIUrl":"https://doi.org/10.1109/TIA.2025.3578221","url":null,"abstract":"","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 4","pages":"C4-C4"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11069365","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hybrid grounding system (HGS) combining neutral-point voltage regulator and low-resistance has demonstrated its application potential. However, when the line impedance and load cannot be ignored, the entire control strategy may be significantly affected, thereby influencing the arc extinction effect. To improve the security and reliability of distribution networks when addressing single-phase ground faults, this paper presents a complete control strategy for HGS. Firstly, the study begins by introducing the structure of HGS and conventional arc extinction principle. And then, considering the impact of line impedance and load, an improved arc extinction strategy involving calculating accurate reference voltage of the converter is further proposed. In addition, to achieve precise tracking of the reference voltage, a dual-loop control strategy is employed, with the addition of a lead correction stage to enhance the system stability. And a coordinated control strategy for HGS is proposed, which can deal with all types of single-phase ground faults by setting three-level thresholds for zero-sequence current. Finally, sufficient results based on simulation, hardware-in-the-loop and 10 kV hardware testing platform validated the effectiveness of the proposed method.
{"title":"Arc Extinction and Control Strategy for Hybrid Grounding System Considering Line Impedance and Load in 10 kV Distribution Networks","authors":"Kangli Liu;Zitong Wang;Jianfeng Zhao;Yu Zhou;Cheng Jin;Wanglong Ding;Anlong Zhang","doi":"10.1109/TIA.2025.3585863","DOIUrl":"https://doi.org/10.1109/TIA.2025.3585863","url":null,"abstract":"Hybrid grounding system (HGS) combining neutral-point voltage regulator and low-resistance has demonstrated its application potential. However, when the line impedance and load cannot be ignored, the entire control strategy may be significantly affected, thereby influencing the arc extinction effect. To improve the security and reliability of distribution networks when addressing single-phase ground faults, this paper presents a complete control strategy for HGS. Firstly, the study begins by introducing the structure of HGS and conventional arc extinction principle. And then, considering the impact of line impedance and load, an improved arc extinction strategy involving calculating accurate reference voltage of the converter is further proposed. In addition, to achieve precise tracking of the reference voltage, a dual-loop control strategy is employed, with the addition of a lead correction stage to enhance the system stability. And a coordinated control strategy for HGS is proposed, which can deal with all types of single-phase ground faults by setting three-level thresholds for zero-sequence current. Finally, sufficient results based on simulation, hardware-in-the-loop and 10 kV hardware testing platform validated the effectiveness of the proposed method.","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"62 1","pages":"608-616"},"PeriodicalIF":4.5,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146006891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3584575
{"title":"IEEE Women in Engineering","authors":"","doi":"10.1109/TIA.2025.3584575","DOIUrl":"https://doi.org/10.1109/TIA.2025.3584575","url":null,"abstract":"","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 4","pages":"6080-6080"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11069367","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3578173
{"title":"IEEE Transactions on Industry Applications Publication Information","authors":"","doi":"10.1109/TIA.2025.3578173","DOIUrl":"https://doi.org/10.1109/TIA.2025.3578173","url":null,"abstract":"","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 4","pages":"C3-C3"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11069381","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-03DOI: 10.1109/TIA.2025.3578219
{"title":"IEEE Transactions on Industry Applications Publication Information","authors":"","doi":"10.1109/TIA.2025.3578219","DOIUrl":"https://doi.org/10.1109/TIA.2025.3578219","url":null,"abstract":"","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 4","pages":"C3-C3"},"PeriodicalIF":4.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11069362","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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