2022 Workshop on Communication Networks and Power Systems (WCNPS)最新文献_第3页

Assessment of Traveling Wave Propagation Velocity on HVDC Transmission Lines 高压直流输电线路上行波传播速度的评估

2022 Workshop on Communication Networks and Power Systems (WCNPS) Pub Date : 2022-11-17 DOI: 10.1109/WCNPS56355.2022.9969692

Caio Muller S. Ribeiro, F. Lopes, K. M. e Silva

引用次数: 1

On the effective length of transmission line grounding conductors and the validity of the point-source model in GPR responses 传输线接地导线有效长度及点源模型在探地雷达响应中的有效性

2022 Workshop on Communication Networks and Power Systems (WCNPS) Pub Date : 2022-11-17 DOI: 10.1109/WCNPS56355.2022.9969740

C. M. Moraes, Marco A. de Brito Ribeiro, A. Martins-Britto

{"title":"On the effective length of transmission line grounding conductors and the validity of the point-source model in GPR responses","authors":"C. M. Moraes, Marco A. de Brito Ribeiro, A. Martins-Britto","doi":"10.1109/WCNPS56355.2022.9969740","DOIUrl":"https://doi.org/10.1109/WCNPS56355.2022.9969740","url":null,"abstract":"Due to long extensions involved, being exposed to the environment, and occupying large amounts of space, transmission lines (TLs) eventually interfere electromagnetically with other metallic structures. Electromagnetic interferences (EMIs) often generate risks to the safety of the installations and people involved. Realistic approaches to address EMI studies are often computationally intensive. Thus, simplified models that accurately represent real phenomena are very important. In this context, this paper determines the effective distance from the observation point in which the TLs tower grounding system can be replaced by a simplified point-source model. A hypothetical case of parallelism is performed to validate the proposed methodology. Results show that from a distance of three times the counterpoise conductors length, the simplified model can be used in several hypothetical scenarios of discrepancy. The results obtained using the effective distance and the simplified model presented a 2.89% discrepancy and an improvement of 11.77% in software performance.","PeriodicalId":120276,"journal":{"name":"2022 Workshop on Communication Networks and Power Systems (WCNPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114169639","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

Importance of EMT-Type Simulations for Protection Studies in Power Systems with Inverter-Based Resources emt型仿真对基于逆变器资源的电力系统保护研究的重要性

2022 Workshop on Communication Networks and Power Systems (WCNPS) Pub Date : 2022-11-17 DOI: 10.1109/WCNPS56355.2022.9969699

F. Lopes, M.J.B.B. Davi, M. Oleskovicz, G. Fabris

引用次数: 1

Impact of Volumetric Water Content and Porosity on Transmission Lines Submitted to Energization and Lightning Strikes 体积含水率和孔隙率对通电和雷击输电线路的影响

2022 Workshop on Communication Networks and Power Systems (WCNPS) Pub Date : 2022-11-17 DOI: 10.1109/WCNPS56355.2022.9969756

T. F. Pascoalato, A. D. de Araújo, Sérgio Kurokawa, J. Filho

引用次数: 0

Rate maximization with QoS guarantees in IRS-assisted WPCN-NOMA systems irs辅助WPCN-NOMA系统中具有QoS保证的速率最大化

2022 Workshop on Communication Networks and Power Systems (WCNPS) Pub Date : 2022-11-17 DOI: 10.1109/WCNPS56355.2022.9969722

Carlos Augusto Melo de Pinho, F. Lima

{"title":"Rate maximization with QoS guarantees in IRS-assisted WPCN-NOMA systems","authors":"Carlos Augusto Melo de Pinho, F. Lima","doi":"10.1109/WCNPS56355.2022.9969722","DOIUrl":"https://doi.org/10.1109/WCNPS56355.2022.9969722","url":null,"abstract":"In this article, Intelligent Reflecting Surface (IRS) technology is used to assist a Wireless Powered Communication Network (WPCN) system composed of a Hybrid Access Point (HAP) and multiple devices during downlink and uplink phases. In the downlink, devices charge their batteries through Wireless Power Transfer (WPT) from the power signals coming directly from the HAP and from the signals reflected by the IRS. In the uplink, the devices transmit their information signals to the HAP by employing Non-Orthogonal Multiple Access (NOMA). In the HAP, information is decoded through Successive Interference Cancellation (SIC). Based on this system model, an optimization problem is formulated so as to maximize the total uplink data rate subject to individual Quality of Service (QoS) guarantees for devices where IRS's phase shifts, uplink/downlink time duration and device ordering in SIC are optimized. Motivated by the high complexity of the optimization problem, we employ alternate optimization where Genetic Algorithm (GA) is used to define IRS's phase shifts in uplink/downlink and a heuristic solution is employed to optimize the remaining variables. Simulation results show that the proposed solution is able to satisfy different levels of QoS demands with higher spectral efficiency compared to baseline solutions.","PeriodicalId":120276,"journal":{"name":"2022 Workshop on Communication Networks and Power Systems (WCNPS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129611107","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