2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America)最新文献_第8页

Integrating a Safety Factor into Ampacity Forecasting Models using Quantile Losses 利用分位数损耗将安全系数集成到容量预测模型中

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543043

Gabriela Molinar, J. Gundlach, W. Stork

{"title":"Integrating a Safety Factor into Ampacity Forecasting Models using Quantile Losses","authors":"Gabriela Molinar, J. Gundlach, W. Stork","doi":"10.1109/ISGTLatinAmerica52371.2021.9543043","DOIUrl":"https://doi.org/10.1109/ISGTLatinAmerica52371.2021.9543043","url":null,"abstract":"The safety and the life span of the electrical network have the highest priority. A safety factor for ampacity predictions is defined by several system operators to avoid overestimations. Applying this, they still have time to react without producing long-term damages of the line in case the forecast is higher than the actual current capacity. An example of a safety factor is the 2% overestimation rate. This article presents and compares two possible solutions to include a safety factor into ampacity forecasting systems. One is a simple bias, which is statistically calculated and then added as a constant to all predictions. The second approach can be applied to machine learning models, since it uses a quantile loss function for training, which has a predefined threshold of overestimations as a quantile. Both solutions are explained using a standard database for ampacity forecasting studies. At the end, the benefits of training based on a quantile loss function get clear, which opens a new experimentation field to get nearer to the requirements of system operators.","PeriodicalId":120262,"journal":{"name":"2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134635963","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

Evaluation of High Impedance Faults in Delta 13.8 kV Distribution Network 三角洲13.8 kV配电网高阻抗故障评价

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543027

Oscar Kim Junior, C. S. S. Salas, M. A. Ravaglio, L. F. Toledo

{"title":"Evaluation of High Impedance Faults in Delta 13.8 kV Distribution Network","authors":"Oscar Kim Junior, C. S. S. Salas, M. A. Ravaglio, L. F. Toledo","doi":"10.1109/ISGTLatinAmerica52371.2021.9543027","DOIUrl":"https://doi.org/10.1109/ISGTLatinAmerica52371.2021.9543027","url":null,"abstract":"The detection of high impedance faults is a challenge for most Power Utilities Companies. This work presents the results of computer simulations of laboratory and field tests to verify the behavior of the currents and voltages to the detection and classification of high impedance faults. Waveform's data were produced by ATP (Alternative Transient Program) and oscillographs were obtained by laboratory and field tests related to broken cable on grass, asphalt, concrete, and clay surfaces. The test system is composed of a substation with 34.5-13.8 kV power transformer Wye-grounded-Delta., a 13.8 kV bus, and three rural distribution feeders. The 13.8 kV delta bus is connected to a Zig-Zag Grounding Reactor. The dataset obtained was evaluated and rules had been created for detecting and classifying high impedance faults. The residual current, residual voltage, and ratio V2/V1 show a characteristic behavior and allow create a method for high impedance fault detection and classification. The method performance was reliable, with true results higher than 80% for real feeder tests.","PeriodicalId":120262,"journal":{"name":"2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129285304","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

Smart Cities Criteria: A Discussion About Relevant and Contextualized Indicators for Sustainable Smart Living 智慧城市标准:关于可持续智慧生活的相关和情境化指标的讨论

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543019

Fernanda A. Cardoso e Silva, J. Villibor, Tayná A. Da Silva Almeida, B. Bonatto, P. F. Ribeiro

引用次数: 2

The effect of deadline uncertanity on EV charge scheduling 期限不确定性对电动汽车充电计划的影响

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543025

Lucas Narbondo, Andrés Ferragut, F. Paganini

引用次数: 0

Development of Fiber Optic Network for Underground Distribution Systems 地下配电系统光纤网络的发展

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543047

B. B. Cardoso, M. A. Martins, Alberto Ferreira Da Silva, A. D. de Macedo, K. Martins

引用次数: 1

NILM: Multivariate DNN performance analysis with high frequency features NILM:具有高频特征的多元深度神经网络性能分析

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543016

Camilo Mariño, E. Masquil, Franco Marchesoni, Alicia Fernández, Pablo Massaferro

引用次数: 3

Investigating the Impact of Solar Intermittency on the Storage System Lifetime in PV-Based Isolated Microgrids 研究太阳能间歇性对基于光伏的隔离微电网存储系统寿命的影响

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543068

Natália P. Saraiva, P. B. L. Neto, O. Saavedra, L. Ribeiro, Juarez Rocha Silva Neto

引用次数: 0

The Impact of Natural Gas Storage Localization on an Integrated Energy System 天然气储存定位对综合能源系统的影响

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9543030

Ana M. Martínez Sánchez, H. Salazar, C. A. S. Cortés

{"title":"The Impact of Natural Gas Storage Localization on an Integrated Energy System","authors":"Ana M. Martínez Sánchez, H. Salazar, C. A. S. Cortés","doi":"10.1109/ISGTLatinAmerica52371.2021.9543030","DOIUrl":"https://doi.org/10.1109/ISGTLatinAmerica52371.2021.9543030","url":null,"abstract":"The world tendency to the rational and efficient management of energy resources and the discouragement in the use of high polluting fuels has posed a challenge to develop novel analytical methodologies that can be applied to the available resources. The operation planning of the electric and natural gas integrated system has an important role to create new solutions for the optimization of resources and existing infrastructures. The proper use of storage technologies can help to improve the integration between the electricity and gas systems, the optimal use of resources compensates seasonal variability between the availability of resources and demand. This paper shows that the geographical location of the UGS has a considerable impact on the policy in terms of how much natural gas-based power generation is produced and the total production cost of the integrated system. Numerical results confirm that a UGS can have the physical properties to store natural gas, but its location might cause a significant or insignificant impact on the system.","PeriodicalId":120262,"journal":{"name":"2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132833415","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

System Parameter Identification of Thermal Generation Unit in the Mongolian Electrical Grid: Real-Life Frequency Response Test 蒙古电网热力发电机组系统参数辨识:实际频响试验

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9542996

Choidorj Adiyabazar, F. Gonzalez-Longatt, M. Acosta, J. Rueda, Erkhemzaya Bolor

{"title":"System Parameter Identification of Thermal Generation Unit in the Mongolian Electrical Grid: Real-Life Frequency Response Test","authors":"Choidorj Adiyabazar, F. Gonzalez-Longatt, M. Acosta, J. Rueda, Erkhemzaya Bolor","doi":"10.1109/ISGTLatinAmerica52371.2021.9542996","DOIUrl":"https://doi.org/10.1109/ISGTLatinAmerica52371.2021.9542996","url":null,"abstract":"Mongolian power grid (MPG) is becoming more eco-friendly as the power system is continuously integrating renewable energy, which reached 20% of the total installed capacity of Mongolia in 2020. The daily operation and the safety of the MPG have become very challenging because of increased levels of energy in the system. Therefore, the dynamic behaviour of conventional power plants (CPPs) must be demonstrated to fulfil the requirements of integrating more renewable energy in the MPG, especially for frequency stability. This paper illustrates the results of the system parameter identification of an actual steam turbine and a governor system with PID controller by using a real-life test performed on Generator 1 (G1) of the biggest thermal power plant (TPP-4) in Mongolia on 6th March 2020. The main contribution of this paper is to clear uncertainties about the PID controller's parameters installed in the steam turbine of G1 in early 2019, consequently giving the system operator an accurate dynamic model of the generation unit. The steam turbine and governor are modelled in DIgSILENT® PowerFactory, and the Particle Swarm Optimization (PSO) method is used for identifying the parameters of the PID controller of the G1 at TPP-4. Simulation results from the PowerFactory software matched firmly (error <0.3%) with the measured frequency from the Phasor Measurement Unit (PMU).","PeriodicalId":120262,"journal":{"name":"2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133498866","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

Field Harmonics Measurements and Computer Simulation of an SVC at the Mongolian Transmission Network 蒙古输电网SVC场谐波测量与计算机仿真

2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) Pub Date : 2021-09-15 DOI: 10.1109/ISGTLatinAmerica52371.2021.9542991

Choidorj Adiyabazar, M. Acosta, F. Gonzalez-Longatt

{"title":"Field Harmonics Measurements and Computer Simulation of an SVC at the Mongolian Transmission Network","authors":"Choidorj Adiyabazar, M. Acosta, F. Gonzalez-Longatt","doi":"10.1109/ISGTLatinAmerica52371.2021.9542991","DOIUrl":"https://doi.org/10.1109/ISGTLatinAmerica52371.2021.9542991","url":null,"abstract":"The static var compensator (SVC) mainly consists of a thyristor-controlled reactor (TCR) and a fixed capacitor (FC). In 2020, the install capacity of SVC was 30 MV Ar, which was connected to the South Energy System (SES) of the Mongolian power system (MPS). The primary purpose of the SVC is to compensate reactive power, increase voltage stability and reduce voltage fluctuations. However, TCR generates a high level of harmonic currents because of the thyristor's firing angle control. Therefore it is necessary to determine the effect of harmonics generated by the SVC on the power system and its components. To perform these analyses, it is needed to determine the harmonic characteristics of the grid at the point of SVC connection, existing levels of harmonics, and appropriate standards regarding acceptable harmonic levels in the power system. To calculate and design harmonics, an accurate harmonic model should be created in the simulation software. For example, the 6-pulse converter model of the DIg SILENT PowerFactory has not considered phase angles for unbalancing the system. Hence, the importance of modelling angles of the harmonics, measuring instrument, analysis of various waveforms are of interest to all engineers. Hence, in this paper, a harmonic model is considered harmonic current phase angles measured by a real system.","PeriodicalId":120262,"journal":{"name":"2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133590511","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