2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA)最新文献

Probabilistic Analysis based on Steady-state Voltage Level Compliance Indicators for LV Distribution Networks with High PV and EV Penetration 基于光伏和电动汽车高渗透低压配电网稳态电压水平符合性指标的概率分析

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326191

Luiz Eduardo Sales e Silva, João Paulo Abreu Vieira, Camila Souza Alves, Andrey da Costa Lopes

{"title":"Probabilistic Analysis based on Steady-state Voltage Level Compliance Indicators for LV Distribution Networks with High PV and EV Penetration","authors":"Luiz Eduardo Sales e Silva, João Paulo Abreu Vieira, Camila Souza Alves, Andrey da Costa Lopes","doi":"10.1109/TDLA47668.2020.9326191","DOIUrl":"https://doi.org/10.1109/TDLA47668.2020.9326191","url":null,"abstract":"The modification and modernization processes of the electrical networks, which aim to decarbonize and decentralize the power generation, have introduced new components in secondary distribution networks. Photovoltaic (PV) microgenerators and electric vehicles (EV) are highlighted components to reach environmental objectives. However, high PV microgeneration and EV penetration cause technical and economic problems on secondary distribution networks, mainly related to steady-state voltage variation. In this context, this paper proposes a probabilistic economic analysis approach based on steady-state voltage level compliance indicators for low voltage (LV) distribution networks with high PV and EV penetration. The Brazilian National for Electrical Energy (ANEEL) establishes limits for steady-state voltage indicators, known as relative duration of precarious voltage transgression (DRP) and relative duration of critical voltage transgression (DRC). Monte Carlo simulations were carried out to evaluate PV generation and EV demand uncertainties. The proposed approach was tested on a real LV distribution network, and costs by by DRP and DRC indicators increase under high PV and EV penetration.","PeriodicalId":448644,"journal":{"name":"2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122389706","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

Short-term Dispatch of Renewable Sources Considering Minimization of Active Losses and Generation Costs 考虑主动损耗和发电成本最小化的可再生能源短期调度

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326223

Flávio Santos de Souza, T. Sousa, E. W. Ângelos

引用次数: 0

Computing Transient Voltages on Grounding Grids Buried in Homogeneous and Stratified Soils 埋于均匀和分层土壤中的接地网瞬态电压计算

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326186

A. D. de Araújo, W. L. D. de Azevedo, J. Filho, Jaimis Sajid Leon Colqui, Sergio Kuroakawa

{"title":"Computing Transient Voltages on Grounding Grids Buried in Homogeneous and Stratified Soils","authors":"A. D. de Araújo, W. L. D. de Azevedo, J. Filho, Jaimis Sajid Leon Colqui, Sergio Kuroakawa","doi":"10.1109/TDLA47668.2020.9326186","DOIUrl":"https://doi.org/10.1109/TDLA47668.2020.9326186","url":null,"abstract":"Grounding grids (GGs) are essential to guarantee protection to personnel and equipment in the electrical substation. In this context, GGs provide low impedance path to high currents during faults or lightning strikes to minimize the step and touch voltages. Several models to compute the impedance of the GG are presented in the literature combining distributed and lumped approach. In this paper, a lumped approach is developed to represent a GG composed by vertical (VEs) and horizontal electrodes (HEs). Electrodes are modelled individually by lumped models and implemented at the ATP-EMTP software. The grounding impedances of the VEs buried in a stratified soil are calculated by the quadripole approach and an electric circuit is obtained by the Vector Fitting technique. The HE representation is based on the electromagnetic radiation theory, where each segment of the conductor can be seen as a current-carrying conductor. Simulation results compared with the traditional models in the literature indicate a good performance of the lumped representation of the HV and VE for a frequency range that varies from 100 Hz up 10 MHz. Additionally, results have shown that when VES are inserted in GGs and another layer of soil is considered, the GPR and node voltages are significantly reduced.","PeriodicalId":448644,"journal":{"name":"2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128786343","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

Characteristics of High Impedance Faults in Overhead Distribution Networks in Bamboo Branches 竹枝架空配电网高阻抗故障特性研究

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326100

A. P. Leão, M. Tostes, J. P. A. Vieira, U. Bezerra, W. Heringer, A. L. Sousa, M. D. A. Cordeiro, J. C. H. Paye, M. C. Santos

引用次数: 0

Impact of Demand Response on Generation Expansion Planning in the Brazilian Interconnected Power System 需求响应对巴西互联电力系统扩容规划的影响

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326129

G. Muller

{"title":"Impact of Demand Response on Generation Expansion Planning in the Brazilian Interconnected Power System","authors":"G. Muller","doi":"10.1109/TDLA47668.2020.9326129","DOIUrl":"https://doi.org/10.1109/TDLA47668.2020.9326129","url":null,"abstract":"Demand response is defined as the change in electricity use by consumers from the normal consumption pattern in response to changes in energy price or the receipt of incentives to induce lower energy at higher price points or when reliability of the system is impaired. Demand response can improve system adequacy and substantially reduce the investment need to meet peak demand, shifting consumption to times of low demand and adding stability to the system. This paper presents a methodology for demand response to participate in generation planning and to compete on equal terms with other supply-side energy resources such as hydroelectric, thermal and wind power plants. For this purpose, the demand response modeling is performed endogenously in the planning model. Thus, this mechanism competes on equal terms with all other resources, such as hydroelectric, wind and thermal. The methodology is applied to the Brazilian electric system in the medium term energy planning for a 10-year horizon and the results indicate that, with demand response, there is a considerable impact on the generation expansion on the study horizon, postponing and avoiding the construction of others power plants.","PeriodicalId":448644,"journal":{"name":"2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129885952","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

Power Reserve Dispatch to Mitigate Variability of Generation Output due to Wind Ramps 缓解风力坡道引起的发电输出变异性的电力储备调度

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326195

Mauro Sérgio Silva Pinto, M. Pinto, O. Saavedra

引用次数: 1

Assessment of Harmonic Distortion Associated with PV Penetration in a Low Voltage Distribution Network 低压配电网中与光伏渗透相关的谐波畸变评估

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326177

Johanna S. Castellanos A., Diego Patiño Guevara, C. Correa-Flórez, G. Ordóñez-Plata

{"title":"Assessment of Harmonic Distortion Associated with PV Penetration in a Low Voltage Distribution Network","authors":"Johanna S. Castellanos A., Diego Patiño Guevara, C. Correa-Flórez, G. Ordóñez-Plata","doi":"10.1109/TDLA47668.2020.9326177","DOIUrl":"https://doi.org/10.1109/TDLA47668.2020.9326177","url":null,"abstract":"The photovoltaic penetration brings huge challenges to the distribution networks operators in different aspects related with the power quality. This paper pretends to show an assessment of the distortion of current and voltage signals caused by photovoltaic penetration of a low voltage distribution network based on a CIGRE benchmark with European configuration, which contains three subnetworks, namely residential, industrial and commercial. For this purpose ten photovoltaic systems are proposed, five in the residential, one in the industrial and four in the commercial subnetwork. All of them in five scenarios where each photovoltaic system changes its power rate according to the penetration percentage which could be 1%, 5%, 15%, 30% or 50%. The simulation is developed in OpenDSS software together with Python where the total harmonic distortion of current and voltage are calculated. Additionally, the total losses of the system are presented by each scenario. Results show that the voltage distortion in the transformer points is too small, however, the current distortion exceeds quality standard conditions, especially the residential subnetwork which achieves a current distortion around 80% in the scenario with highest penetration.","PeriodicalId":448644,"journal":{"name":"2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123156061","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

Technical and Economic Feasibility of a Photovoltaic Charging Station for Electric Bicycles Considering a Lead-Acid Battery Degradation Model 考虑铅酸蓄电池退化模型的电动自行车光伏充电站技术经济可行性

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326155

Juan Fernando Guerrero, Felipe Muñoz Fajardo, J. Barco-Jiménez

引用次数: 0

Potential Benefits of Implementing Ambient Adjusted Rating in the Argentinean Transmission System 阿根廷输电系统实施环境调节额定值的潜在效益

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326151

S. Pascual, A. D. Rosso, M. Anello

{"title":"Potential Benefits of Implementing Ambient Adjusted Rating in the Argentinean Transmission System","authors":"S. Pascual, A. D. Rosso, M. Anello","doi":"10.1109/TDLA47668.2020.9326151","DOIUrl":"https://doi.org/10.1109/TDLA47668.2020.9326151","url":null,"abstract":"It is a common practice in electric transmission companies to implement static ratings or seasonal ratings for their transmission lines, for use in operations, planning and market models. Those ratings are calculated assuming worst temperature, wind and solar radiation conditions the line is expected to operate. Consideration of such conservative assumption usually lead to less efficient use of existing assets. The use of ambient-adjusted ratings (AARs) implemented by some entities, which adjust rating frequently based on local ambient air temperatures, has proven to be cost-effective solution to increase the capacity of transmission lines, which in turn brings multiple benefits to the system. This paper discusses the potential use and benefits of implementing AAR in the Argentinean transmission network. A case study is presented to illustrate the concept. The study shows how AAR can be used to increase the transmission capability of thermal limited transmission path that constrains the output of a wind plant. With the increased transmission capacity wind energy curtailed can be significantly reduced. The paper discusses other potential benefits of the technology and implementation considerations.","PeriodicalId":448644,"journal":{"name":"2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113979308","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

Practical PV Hosting Capacity Determination Using Load Factor of the Distribution Transformer 利用配电变压器负荷系数确定实用光伏装机容量

2020 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D LA) Pub Date : 2020-09-28 DOI: 10.1109/TDLA47668.2020.9326136

Carlos Vera Silva, Agustín Rafael Marulanda Guerra

引用次数: 2