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2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)最新文献

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A Scalable Method for Semidefinite Programming Based Distribution System State Estimation 基于半定规划的配电系统状态估计的可伸缩方法
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816892
Jianqiao Huang, A. Flueck
{"title":"A Scalable Method for Semidefinite Programming Based Distribution System State Estimation","authors":"Jianqiao Huang, A. Flueck","doi":"10.1109/td43745.2022.9816892","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816892","url":null,"abstract":"Distribution system state estimation (DSSE) is crucial for real-time management of distribution networks. The weighted least squares (WLS) method is widely used for DSSE, via the Gauss-Newton algorithm. The Gauss-Newton algorithm often suffers from convergence issues when pseudo-measurements and virtual measurements are used. This motivates the development of semidefinte programming (SDP) based DSSE. This framework is improved by a convex iteration (CI) approach to obtain a high quality rank-one solution. But neither the standard SDP-DSSE nor the CI improvement is a scalable method. In this paper, a chordal decomposition based convex iteration (CDCI) approach using a quadratic cone (QC) is proposed. The proposed solution method is computationally scalable while obtaining a high quality rank-one solution. Simulation results on the IEEE 13-bus, IEEE 37-bus and IEEE 123-bus systems verify the performance of the CDCI approach.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127264029","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}
引用次数: 0
Transmission Line and Substation Insulators Asset Health and Preventive Maintenance 输电线路和变电站绝缘子资产健康和预防性维护
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816873
C. Jean, Reginald Weiser
{"title":"Transmission Line and Substation Insulators Asset Health and Preventive Maintenance","authors":"C. Jean, Reginald Weiser","doi":"10.1109/td43745.2022.9816873","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816873","url":null,"abstract":"This paper presents a new technique to assess, display and prioritize maintenance on energized insulators in substations. The technique is based on the proven Electric field (E-field) method used on overhead Porcelain and Composite suspension insulators. This method measures the E-field distribution along insulators, detects, displays and records defects, their severity and location of any internal or external conductive defects. The results are stored in a database to enable a full overview of the T&D assets. It is also used to show degradation over time for maintenance prioritization and to assess reliability. This technology is now used for both, the suspension insulators found on transmission lines and the insulators/bushings found in substations. An overview of some of the most frequent defects obtained over the years on Porcelain and Composite suspension insulators is presented, followed by new examples of defective insulators found in substations. Defects include punctured or leaking discs, connected and floating defects caused by moisture ingress, carbon tracking, manufacturing defects, etc. The E-field methodology is safe to use and makes no electrical/metallic contact with the insulator. It immediately alerts workers of a dangerous situation. It is used for maintenance purposes and as a safety tool.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132311343","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}
引用次数: 0
How to Improve IEEE C57.104-2019 DGA Fault Severity Interpretation 如何改进IEEE C57.104-2019 DGA故障级别解释
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816859
Z. Draper, J. Dukarm, C. Beauchemin
{"title":"How to Improve IEEE C57.104-2019 DGA Fault Severity Interpretation","authors":"Z. Draper, J. Dukarm, C. Beauchemin","doi":"10.1109/td43745.2022.9816859","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816859","url":null,"abstract":"This paper provides an example of how to improve DGA fault severity interpretation using screening test statistics and optimization curves with transformer failure data. Initial comparison of ‘cookbook’ fault severity methods in Draper & Dukarm 2021 [1] showed that IEEE C57.104-2019 had fallen short of its potential by not having a clearly defined status code higher than a 3. The IEEE guidelines provide for an undefined ‘Extreme DGA’ category which we attempt to define in this paper using failure data. We found that the overall performance of IEEE 2019 as a predictor of near-term transformer failure can be considerably improved by just multiplying the status code 3 limits by a factor of seven. Nevertheless, this simple modification to IEEE 2019 is not able to achieve as high of a positive predictive value or diagnostic odds ratio as PFS (IEC 60599–2015 / CIGRE TB 771) or Reliability-based DGA. Further algorithmic changes using population data with actual failure cases will be required to improve the performance of future DGA fault severity interpretation methods.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"2004 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121009085","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}
引用次数: 1
Winter Storm Scenario Generation for Power Grids Based on Historical Generator Outages 基于历史发电机停机的电网冬季风暴情景生成
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816863
Brent Austgen, Manuel García, B. Pierre, J. Hasenbein, E. Kutanoglu
{"title":"Winter Storm Scenario Generation for Power Grids Based on Historical Generator Outages","authors":"Brent Austgen, Manuel García, B. Pierre, J. Hasenbein, E. Kutanoglu","doi":"10.1109/td43745.2022.9816863","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816863","url":null,"abstract":"We present a procedure for randomly generating realistic steady-state contingency scenarios based on the historical outage data from a particular event. First, we divide generation into classes and fit a probability distribution of outage magnitude for each class. Second, we provide a method for randomly synthesizing generator resilience levels in a way that preserves the data-driven probability distributions of outage magnitude. Finally, we devise a simple method of scaling the storm effects based on a single global parameter. We apply our methods using data from historical Winter Storm Uri to simulate contingency events for the ACTIVSg2000 synthetic grid on the footprint of Texas.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114142594","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}
引用次数: 2
Intelligent Load Prioritization Sequence for Distribution System Reconfiguration 配电系统重构的智能负荷优先排序
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816870
M. Almuhaini, P. Ilius, Maad Alowaifeer
{"title":"Intelligent Load Prioritization Sequence for Distribution System Reconfiguration","authors":"M. Almuhaini, P. Ilius, Maad Alowaifeer","doi":"10.1109/td43745.2022.9816870","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816870","url":null,"abstract":"Microgrid is becoming an interesting power distribution system to the utility companies owing to its advantages over conventional distribution systems. However, when adopting microgrids, system reliability and cost-effectiveness must be within the acceptable range. In this regard, the microgrid concept has included the feature of automatically restoring the loads according to their importance when a disturbance faced as shortest time as possible. To fulfill the objective of restoration optimization, dynamic priority listing model must be adopted for sequentially restoring the loads according to their importance. In this work, a dynamic priority listing model-including four criticality levels, three sub-criticality levels, which includes the demand side management (DSM) programs, and one special critical level-is proposed. The model outputs the SAIFI, SAIDI and ENS reliability indices, as well as cost of interruptions. Finally, this model is optimized using intelligent fuzzy decision making (FDM) technique, where the reliability indices are calculated using Monte Carlo Simulation (MCS).","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125166615","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}
引用次数: 0
Impact of Cementation and Burial Depth on Soil Thermal Properties Used for Power Cable Design in Arid Climates 胶结和埋深对干旱地区电力电缆设计中土壤热特性的影响
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816881
E. C. Bascom, Ashley E. Shirer, Danielle E. Anderson
{"title":"Impact of Cementation and Burial Depth on Soil Thermal Properties Used for Power Cable Design in Arid Climates","authors":"E. C. Bascom, Ashley E. Shirer, Danielle E. Anderson","doi":"10.1109/td43745.2022.9816881","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816881","url":null,"abstract":"Cable design for underground cable systems - both directly buried and in conduit - is greatly impacted by in situ subsurface thermal material properties. Utilites traditionally have taken conservative approaches that can increase the cable material and construction costs. This is particularly problematic in arid climates, where small changes in moisture can have significant impact on thermal ratings of near-surface materials and where dense cemented materials limit trench excavation. A methodology is presented here that evaluates both the variability in subsurface strata and the variability of thermal resistivity in these special environments that impact underground power cable ratings.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129477299","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}
引用次数: 1
A Resilience Evaluation Concept for Permanently Islanded Military Nanogrids 永久孤岛军事纳米网格弹性评估概念
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816917
Nicholas G. Barry, S. Santoso, Joseph Vitale
{"title":"A Resilience Evaluation Concept for Permanently Islanded Military Nanogrids","authors":"Nicholas G. Barry, S. Santoso, Joseph Vitale","doi":"10.1109/td43745.2022.9816917","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816917","url":null,"abstract":"The ongoing electrification of warfare intensifies the U.S. military's reliance on electrical energy. Military nanogrids are small, permanently islanded, highly mobile, electrical systems, with a generation capacity less than 25 kW. This paper proposes a resilience evaluation concept with metrics for mobile military nanogrids. The proposed metrics evaluate resilience against a disruption in primary generation, loss of a distribution component, loss of fuel supply, and electrical faults. A method for classifying distribution networks into radial, loop, or mesh topologies is also presented. The intent is to quantitatively evaluate a military nanogrid's resilience and drive the design of future systems with enhanced resilience.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128649008","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}
引用次数: 1
Solar Power Smoothing in a Nanogrid Testbed 纳米网格测试平台中的太阳能平滑
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.48550/arXiv.2206.15323
Hossein Panamtash, Rubin York, P. Brooker, J. Kramer, Q. Sun
{"title":"Solar Power Smoothing in a Nanogrid Testbed","authors":"Hossein Panamtash, Rubin York, P. Brooker, J. Kramer, Q. Sun","doi":"10.48550/arXiv.2206.15323","DOIUrl":"https://doi.org/10.48550/arXiv.2206.15323","url":null,"abstract":"High penetration of solar power introduces new challenges in the operation of distribution systems. Considering the highly volatile nature of solar power output due to changes in cloud coverage, maintaining the power balance and operating within ramp rate limits can be an issue. Great benefits can be brought to the grid by smoothing solar power output at individual sites equipped with flexible resources such as electrical vehicles and battery storage systems. This paper proposes several approaches to a solar smoothing application by utilizing battery storage and EV charging control in a “Nanogrid” testbed located at a utility in Florida. The control algorithms focus on both real-time application and predictive control depending on forecasts. The solar smoothing models are then compared using real data from the Nanogrid site to present the effectiveness of the proposed models and compare their results. Furthermore, the control methods are applied to the Orlando Utilities Commission (OUC) Nanogrid to confirm the simulation results.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121304575","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}
引用次数: 2
The Impact of Using Low-Power Voltage Transformers (LPVT) When Performing Cable Diagnostic Testing in Medium-Voltage Distribution Networks 在中压配电网中进行电缆诊断测试时使用低功率变压器(LPVT)的影响
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9816924
Hamed Rezaei, M. Jenny, Axel Winter, M. Bawart
{"title":"The Impact of Using Low-Power Voltage Transformers (LPVT) When Performing Cable Diagnostic Testing in Medium-Voltage Distribution Networks","authors":"Hamed Rezaei, M. Jenny, Axel Winter, M. Bawart","doi":"10.1109/td43745.2022.9816924","DOIUrl":"https://doi.org/10.1109/td43745.2022.9816924","url":null,"abstract":"As power networks move toward increased digitalization and the smart grid is becoming more of a reality, power networks are hosting elements of smart grids to meet the growing demands and requirements of advanced digital networks. One of the components of a smart grid is the use of measuring sensors. Low-power instrument transformers are one part of these advanced systems and are increasingly being used within distribution networks. As these sensors are being widely installed, network operators must ensure that the addition of such sensors will not affect the normal operation of the network. This paper discusses the potential impact of using voltage sensors in power networks to perform VLF (very low frequency) cable testing, which is a common practice in distribution networks and is used during commissioning tests and to support maintenance and condition monitoring of underground cables. This paper also investigates and compares the impact of different sensor technologies on the performance of cable VLF diagnostic testing.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127147725","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}
引用次数: 0
Medium-Voltage Switchgear Low Temperature Dielectric Performance when Using Alternative Insulating Gas to SF6 使用SF6替代绝缘气体时的中压开关柜低温介电性能
2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D) Pub Date : 2022-04-25 DOI: 10.1109/td43745.2022.9817002
J. Moore, Rahul Jain, James F. Fargo
{"title":"Medium-Voltage Switchgear Low Temperature Dielectric Performance when Using Alternative Insulating Gas to SF6","authors":"J. Moore, Rahul Jain, James F. Fargo","doi":"10.1109/td43745.2022.9817002","DOIUrl":"https://doi.org/10.1109/td43745.2022.9817002","url":null,"abstract":"The use and emissions of SF<inf>6</inf> are increasingly being reduced and regulated. There are green designs for S&C Vista® Underground Distribution Switchgear (Vista) that use a mixture of C4 Fluoronitrile gas and Carbon Dioxide (CO<inf>2</inf>) instead of SF<inf>6</inf>. These designs were tested for Power Frequency Withstand (PFWS) and Basic Impulse Level (BIL) at temperatures at and below <tex>$mathbf{-30^{circ}C}$</tex>, the prevailing standard for underground distribution switchgear. The calculated Dew Point of the mixture is <tex>$mathbf{-37.2^{circ}C}$</tex>. The results indicate that the gear meets PFWS at <tex>$mathbf{-50^{circ}C}$</tex> for all voltages, and BIL at <tex>$mathbf{-50^{circ}C}$</tex> for <tex>$mathbf{15 kV}$</tex> class and at <tex>$mathbf{-30^{circ}C}$</tex> for <tex>$mathbf{25kV}$</tex> and <tex>$mathbf{35 kV}$</tex> class. BIL at <tex>$mathbf{-50^{circ}C}$</tex> for 27 and 38 KV classes require a 10% derating.","PeriodicalId":241987,"journal":{"name":"2022 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132337864","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}
引用次数: 1
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