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2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)最新文献

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Research on Audible Noise Performance of Triple IEC 315 Conductor Bundles for 400kV Transmission Line Applications 400 千伏输电线路应用中三层 IEC 315 导线束的可听噪声性能研究
2024 32nd Southern African Universities Power Engineering Conference (SAUPEC) Pub Date : 2024-01-24 DOI: 10.1109/saupec60914.2024.10445047
Matimba L. Mathebula, Nishal Mahatho, Elvis Mathebula
{"title":"Research on Audible Noise Performance of Triple IEC 315 Conductor Bundles for 400kV Transmission Line Applications","authors":"Matimba L. Mathebula, Nishal Mahatho, Elvis Mathebula","doi":"10.1109/saupec60914.2024.10445047","DOIUrl":"https://doi.org/10.1109/saupec60914.2024.10445047","url":null,"abstract":"Eskom transmission network was primarily designed to transfer high power from coal-driven power stations to load centers. However, the increasing integration of renewable energy in rural areas necessitates additional 400kV lines. Despite the relatively small generation capacity, cost-effective designs with low audible noise are essential. This paper presents corona cage testing conducted to evaluate the audible noise performance of aged triple IEC 315 conductor bundles for 400kV applications. The results demonstrate the adequacy of using a 320mm sub-conductor spacing triple IEC 315 bundle for lines up to 1500m altitude, facilitating optimized designs.","PeriodicalId":518587,"journal":{"name":"2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)","volume":"81 2","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140530959","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
A Review on Battery Energy Storage State of Charge Estimation for Grid Integration with Embedded Renewable Energy Generation 电池储能充电状态估计与嵌入式可再生能源发电并网综述
2024 32nd Southern African Universities Power Engineering Conference (SAUPEC) Pub Date : 2024-01-24 DOI: 10.1109/SAUPEC60914.2024.10445102
Nhamo Dhlamini, S. Chowdhury, M. J. Lencwe
{"title":"A Review on Battery Energy Storage State of Charge Estimation for Grid Integration with Embedded Renewable Energy Generation","authors":"Nhamo Dhlamini, S. Chowdhury, M. J. Lencwe","doi":"10.1109/SAUPEC60914.2024.10445102","DOIUrl":"https://doi.org/10.1109/SAUPEC60914.2024.10445102","url":null,"abstract":"The anticipated growth of inverter-based variable renewable energy systems (VRESs) such as solar and wind to the power grid results in an equivalent reduction of conventional synchronous generators, thus reducing the rotational inertia of the power system stability. Battery energy storage systems (BESS) are vital for the future growth of renewable energy systems because they provide varied grid support services including grid stability. Hence, managing the battery state of charge (SoC), is a very important aspect of maintaining its life and managing the variability of renewable energy sources (RESs). Therefore, this paper provides a review of SoC estimation methods including model-based and data-driven approaches. This area of research remains a research gap that requires continuous reporting to reflect the battery SoC true estimation. In addition, this review will help researchers, academics, engineers, and industry choose the most suitable SoC estimation approach for future applications with VRESs.","PeriodicalId":518587,"journal":{"name":"2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)","volume":"77 6","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140530775","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
Seismic Activity Impact Mitigation on Wind Turbine and Solar PV Energy Output Production 减轻地震活动对风力涡轮机和太阳能光伏发电的影响
2024 32nd Southern African Universities Power Engineering Conference (SAUPEC) Pub Date : 2024-01-24 DOI: 10.1109/SAUPEC60914.2024.10445096
A. Periola, Khaled. Abo-Al-Ez, A. K. Raji
{"title":"Seismic Activity Impact Mitigation on Wind Turbine and Solar PV Energy Output Production","authors":"A. Periola, Khaled. Abo-Al-Ez, A. K. Raji","doi":"10.1109/SAUPEC60914.2024.10445096","DOIUrl":"https://doi.org/10.1109/SAUPEC60914.2024.10445096","url":null,"abstract":"The occurrence of seismic activity in regions that are previously considered to have a low seismic profile raises challenges to obtaining continuous energy output. In this case, the continuous energy output is that associated with renewable wind turbines and renewable solar power systems. The occurrence of seismic activity with low to moderate ground displacement is recognized to be a threat to the energy output from renewable energy systems. The research being presented in this paper addresses this challenge and proposes the incorporation of mobility in wind turbines and components of solar power systems. The mobility feature enables the components to be capable of changing location in response to harmful variation in the ground displacement in the surrounding region. Performance evaluation via simulation shows that the proposed mechanism enhances the solar power system and wind power system power output by an average of 49.3%, and 63.1%, respectively.","PeriodicalId":518587,"journal":{"name":"2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)","volume":"7 4","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140530771","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
Dynamically Managing Load and Supply in a Rural Off-grid MicroGrid 动态管理农村离网微电网的负载和供应
2024 32nd Southern African Universities Power Engineering Conference (SAUPEC) Pub Date : 2024-01-24 DOI: 10.1109/SAUPEC60914.2024.10445078
Renier de Lange, Renier van Rooyen, Nick Singh
{"title":"Dynamically Managing Load and Supply in a Rural Off-grid MicroGrid","authors":"Renier de Lange, Renier van Rooyen, Nick Singh","doi":"10.1109/SAUPEC60914.2024.10445078","DOIUrl":"https://doi.org/10.1109/SAUPEC60914.2024.10445078","url":null,"abstract":"MicroGrids continue to represent a possible solution to address energy poverty in remote locations. This paper will document the results of such an endeavour. The paper will highlight the challenges in transporting and building infrastructure. The pilot project that was undertaken will be discussed and the resulting critical information that was extracted from the period of evaluation will be presented. A specific focus of this paper will be on supply and load management and the strategies implemented to address load management in rural communities. Key technologies used throughout implementation will be discussed as well as management modalities. The impact of community engagement and education will also be discussed and will form a key outcome of deploying said implementation.","PeriodicalId":518587,"journal":{"name":"2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)","volume":"15 2","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140530585","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
Shielding Effect of Screen Wires to Reduce Shocks to the Public underneath Cahora-Bassa HVDC Transmission Line 屏蔽线的屏蔽效果可减少卡霍拉-巴萨高压直流输电线路对公众的冲击
2024 32nd Southern African Universities Power Engineering Conference (SAUPEC) Pub Date : 2024-01-24 DOI: 10.1109/SAUPEC60914.2024.10445030
G. Strelec
{"title":"Shielding Effect of Screen Wires to Reduce Shocks to the Public underneath Cahora-Bassa HVDC Transmission Line","authors":"G. Strelec","doi":"10.1109/SAUPEC60914.2024.10445030","DOIUrl":"https://doi.org/10.1109/SAUPEC60914.2024.10445030","url":null,"abstract":"Transient electric shocks to the public in the vicinity of HVDC lines due to ion currents and high static electric fields is critical design considerations for HVDC transmission lines. These field effects may influence the line configuration and height of new lines. Existing lines which cannot be easily modified, may require retroactive mitigation, particularly where communities have since been established near to the line. Monopolar lines such as Cahora-Bassa may produce more significant adverse effects than comparable bipolar lines due to the lack of mutual field cancellation between the poles and the absence of charge recombination. Shocks have been reported by residents when crossing underneath the negative polarity line of the Cahora-Bassa scheme. The adverse effects of high ion currents and fields can be reduced by the introduction of screening conductors underneath the line. The optimal selection of conductors and their position, as well as the practical implementation of such schemes, is investigated.","PeriodicalId":518587,"journal":{"name":"2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)","volume":"4 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140530737","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
Comparative Analysis of PM and Non-PM Design Options for Small-Scale Wind Generators 小型风力发电机永磁和非永磁设计方案对比分析
2024 32nd Southern African Universities Power Engineering Conference (SAUPEC) Pub Date : 2024-01-24 DOI: 10.1109/SAUPEC60914.2024.10445083
N. Arish, V. Teymoori, Lucky Dube, M. Kamper, Rong-Jie Wang
{"title":"Comparative Analysis of PM and Non-PM Design Options for Small-Scale Wind Generators","authors":"N. Arish, V. Teymoori, Lucky Dube, M. Kamper, Rong-Jie Wang","doi":"10.1109/SAUPEC60914.2024.10445083","DOIUrl":"https://doi.org/10.1109/SAUPEC60914.2024.10445083","url":null,"abstract":"For small-scale wind generators to operate efficiently in remote and residential areas, careful consideration must be given to the selection of the generator topology. The purpose of this study is to conduct an in-depth comparison of various design options available for wind generators. These designs include a permanent magnet vernier generator (PMVG), a permanent magnet synchronous generator (PMSG), and a wound-rotor synchronous generator (WRSG). The study thoroughly evaluates various performance aspects, such as cost, efficiency, torque density, power factor, and ripple torque, to help make an informed decision when choosing the most appropriate generator structure for small-scale wind power applications. Evaluation of the designs is validated by comparing two-dimensional finite element results. The findings of this study provide valuable guidance in choosing a generator that is both high-performing and cost-effective for small-scale wind power generation.","PeriodicalId":518587,"journal":{"name":"2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140530598","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
Analysis of Phasor Measurement Strategies for application in synthetic inertia response 应用于合成惯性响应的相位测量策略分析
2024 32nd Southern African Universities Power Engineering Conference (SAUPEC) Pub Date : 2024-01-24 DOI: 10.1109/SAUPEC60914.2024.10445029
Dawid Bootha, Johan Beukes
{"title":"Analysis of Phasor Measurement Strategies for application in synthetic inertia response","authors":"Dawid Bootha, Johan Beukes","doi":"10.1109/SAUPEC60914.2024.10445029","DOIUrl":"https://doi.org/10.1109/SAUPEC60914.2024.10445029","url":null,"abstract":"The increasing integration of renewable energy sources into electrical grids, replacing conventional synchronous generators with inverter-based alternatives, poses challenges to grid stability due to diminishing effective rotational inertia. This paper focuses on the critical role of synthetic inertia in addressing stability issues during fault events. Specifically, it investigates the transient behavior of two phasor measurement units based on frequency lock loop and phase locked loop architectures The analysis compares the transient performance of the SOGI-FLL and DDSRF-PLL in terms of start-up behavior, total vector error and frequency estimation capability during disturbance events.","PeriodicalId":518587,"journal":{"name":"2024 32nd Southern African Universities Power Engineering Conference (SAUPEC)","volume":"19 2","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140530763","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
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