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2022 IEEE 40th Central America and Panama Convention (CONCAPAN)最新文献

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Analysis of the impact on voltage due to the massive connection of distributed generation to reduce electrical interruptions in densely populated areas 分析大规模接入分布式发电对电压的影响,以减少人口密集地区的电力中断
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997780
Karielis Fernández Aguilar, Jessica Guevara Cedeño
This study has focused on the implementation of distributed generation to reduce the number of power cuts in densely populated areas, due to its possible benefits that have been published by some researchers. The implemented methodology seeks to determine an adequate percentage of DG penetration to solve electrical interruption problems caused by low voltage levels. Therefore, the power flow simulations will be performed by implementing the ETAP power system analysis software, using the IEEE 34-node test system. The process will be carried out through different DG penetration scenarios, to finally analyze the results based on the voltage and power parameters, which allow studying the quality of energy and the increases in energy losses of the electrical networks. The main results obtained are directly related to the level of DG penetration where, when applying the same amount of DG in the four study areas, it was observed that in order to determine the percentage of DG penetration, it is necessary to find the areas with the greatest effect on the, which in this case was the one with the lowest voltage level, causing the greatest increase in current and obtaining a considerable percentage, but complying with the established parameters. This research lays the foundations for the integration of DG at the medium voltage distribution level, for which future work is proposed on the study at the low voltage distribution level.
本研究的重点是实施分布式发电,以减少人口密集地区的停电次数,因为一些研究人员已经发表了它可能带来的好处。实施的方法旨在确定DG渗透的适当百分比,以解决由低电压水平引起的电力中断问题。因此,将采用IEEE 34节点测试系统,通过实施ETAP电力系统分析软件进行潮流仿真。该过程将通过不同的DG渗透场景进行,最终根据电压和功率参数分析结果,从而研究电网的能量质量和能量损失的增加。主要结果是DG渗透水平直接相关,应用相同数量的DG时四个研究领域,它是观察到,为了确定的百分比DG渗透,有必要找到影响最为严重的地区,在本例中是最低的电压水平,导致目前最大的增加和获得相当大的比例,但遵守既定的参数。本研究为中压配电层面的DG集成奠定了基础,并提出了今后在低压配电层面的研究工作。
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引用次数: 0
Towards 6G Networks for Rural Environments: Vision for Improving Digital Inclusion through Open Source Hardware and Software 面向农村环境的6G网络:通过开源硬件和软件改善数字包容的愿景
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997739
Ivan Armuelles Voinov, Joaquín Chung, R. Kettimuthu, Borja Bordel, R. Alcarria, T. Robles
Communication systems have advanced in recent years to meet the demand for connectivity anywhere and at any time with the highest level of service. As 5G mobile networks are being rolled out this decade, academics and industry leaders are starting to define what 6G networks would be. Urban areas, where commercial opportunities are more attractive, are where 5G developments are more evident, while rural areas are mostly excluded from the new advantages of modern technology. In this paper, we present our vision of a 6G network based on free software and open hardware for building sustainable, reliable, and low-cost communications networks in rural and remote areas.
近年来,通信系统不断发展,以满足随时随地提供最高水平服务的连接需求。随着5G移动网络在这十年中的推出,学者和行业领导者开始定义6G网络将是什么。商业机会更具吸引力的城市地区是5G发展更加明显的地方,而农村地区大多被排除在现代技术的新优势之外。在本文中,我们提出了基于免费软件和开放硬件的6G网络的愿景,用于在农村和偏远地区构建可持续、可靠和低成本的通信网络。
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引用次数: 0
Algorithm and criteria for the measurement of energy consumption in a CNC milling machine: a proposal 数控铣床能耗测量的算法和标准:建议
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997715
Flores L. Carlos, Rosales M. Edwing
Energy consumption is a critical variable in a world increasingly concerned about environmental sustainability. Therefore, it is necessary to have procedures that facilitate its measurement. This article presents a summary of the aspects to be considered when planning to monitor energy consumption in a CNC milling process. The synthesis is presented in the form of an algorithm and a set of guiding criteria. The algorithm has been examined evaluating the detailed consumption in a milling of cavities.
在一个日益关注环境可持续性的世界里,能源消耗是一个关键变量。因此,有必要有方便其测量的程序。本文介绍了在数控铣削过程中计划监控能耗时要考虑的方面的总结。综合以一种算法和一套指导准则的形式提出。该算法已被检验评估在铣削空腔的详细消耗。
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引用次数: 0
Third harmonic voltage distortion levels in an urban distribution network in El Salvador 萨尔瓦多城市配电网的三次谐波电压畸变水平
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997804
J. Ramos, Carlos Pocasangre, Luis Chevez, Armando Martínez, J. Osorto, Diego Escobar
Harmonic Voltage and flicker measurements have been conducted at Universidad de El Salvador since 2005. Compliance has been analyzed in reference to the national power quality standard issued by SIGET (General Superintendence of Electricity and Telecommunications). Third harmonic and total harmonic distortion voltage levels have been increasing sustainably since 2005 due to the evolution of loads and systems connected to the distribution network. Individual distortion 95% values for 3rd harmonic voltage are about to exceed the limits established by SIGET, IEEE-519 and EN50160 standards. Public utilities have reported overloading of grounding transformers due to the presence of 3rd harmonic currents.
自2005年以来,在萨尔瓦多大学进行了谐波电压和闪烁测量。参照SIGET (General supervisory of Electricity and Telecommunications)发布的国家电能质量标准进行了符合性分析。自2005年以来,由于连接到配电网的负载和系统的演变,三次谐波和总谐波失真电压水平一直在持续增加。三次谐波电压的个别失真95%值即将超过SIGET, IEEE-519和EN50160标准规定的限值。公用事业报告说,由于三次谐波电流的存在,接地变压器过载。
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引用次数: 0
Design and Performance Analysis of a Transverse-Flux PMSG for Applications in Small Wind Turbines 小型风力发电机横向磁通PMSG的设计与性能分析
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997659
R. Iracheta-Cortez, M. A. Hernández-Rodríguez
In this paper are presented the main steps for developing an analytical design methodology of Transverse Flux Permanent Magnet Synchronous Generators for its use in direct-drive small wind turbines. First, to attain this aim, it is proposed the full magnetic circuit representation of the TF-PMSG. Next, the nodal analysis technique is used to find an algebraic expression for solving the airgap flux. The proposed analytical methodology has been coded in Matlab for analyzing the performance of the TF-PMSG’s over a full range of operation speeds and load conditions. Finally, the performance analysis of the TF-PMSG has been exhaustively validated through 3D Finite Element Analysis (FEA).
本文介绍了用于直驱小型风力发电机的横向磁通永磁同步发电机的分析设计方法的主要步骤。首先,为了达到这一目的,提出了TF-PMSG的全磁路表示。其次,利用节点分析技术求出求解气隙通量的代数表达式。所提出的分析方法已在Matlab中编码,用于分析TF-PMSG在全范围内的运行速度和负载条件下的性能。最后,通过三维有限元分析(FEA)对TF-PMSG的性能进行了详尽的验证。
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引用次数: 0
Development of virtual plant over embedded system 基于嵌入式系统的虚拟工厂开发
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997612
Kelman Belloso, DE Altuve
This document describes the development of a virtual plant prototype inside a Raspberry-pi. The goal is to have low-cost, educational-use equipment that can emulate behavior of 3 physical systems: temperature controlled system, water tank level and angular velocity. The applicability of disturbances to the studied systems was also considered within the code.Parallel to the calculation of the instantaneous value produced by the difference equation developed for each system, the screen of the prototype shows an animation similar to those used in: a SCADA system, Visual Basic, LabView or others.The user can choose the FT of the system to be controlled by selecting from drop-down lists: one of the three systems mentioned and certain characteristics that modify the FT of the system under study.In total there are 27 FT that can be used, additionally the code developed in Python has been structured in a modular way to add new FT and animations corresponding to the system to be developed. The prototype has been tested and its results compared with the equivalent physical system, with an average of 95% similarity for each system. Functional tests were also carried out with digital controllers, including a proportional control in Siemens S7-1200 PLC.
本文档描述了树莓派内部虚拟植物原型的开发。目标是拥有低成本,教育用途的设备,可以模拟三种物理系统的行为:温度控制系统,水箱液位和角速度。在代码中还考虑了扰动对所研究系统的适用性。在计算由为每个系统开发的差分方程产生的瞬时值的同时,原型的屏幕显示了类似于SCADA系统、Visual Basic、LabView或其他系统中使用的动画。用户可以从下拉列表中选择要控制的系统的FT:提到的三个系统之一,以及修改所研究系统的FT的某些特征。总共有27个FT可以使用,此外,用Python开发的代码已经以模块化的方式进行了结构化,以添加与要开发的系统相对应的新FT和动画。该原型已经过测试,其结果与等效物理系统进行了比较,每个系统的平均相似度为95%。还对数字控制器进行了功能测试,包括西门子S7-1200 PLC中的比例控制器。
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引用次数: 0
Wireless-based pest control in tomato crops 基于无线技术的番茄害虫防治
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997624
Orlando Enrique Olarte Lopez, José Julián Quintero Cervera, Alejandro Von Chong
Fruit and vegetable crops are exposed to pests which differ depending on the crop. Particularly, in the case of tomato, fruit flies, when not detected in time, invade the crops leaving larvae that damage them, making the treatment of this pest to be done in a late way, the fumigation is done with backpacks which represents a need for personnel and a greater economic resource. Being the objective to make an early detection and a better treatment in terms of fumigation, we have made a low-cost system that detects and fumigates autonomously tomato crops. Our design is divided into two main segments, the first one an attractant trap, which detects the fruit fly with the help of FC-51 infrared sensors; the second one a spraying system composed of a solenoid valve, a pump and a sprinkler. Both are connected by means of a wireless communicator (ESP32) using the ESP-NOW protocol. Tests of both segments working together were carried out, resulting in a system that, being autonomous and easy to implement, represents an advantage for the grower.
水果和蔬菜作物受到的虫害因作物而异。特别是,在番茄的情况下,如果不及时发现果蝇,它们就会侵入作物,留下破坏作物的幼虫,使这种害虫的处理变得很晚,熏蒸是用背包进行的,这意味着需要人力和更大的经济资源。为了在熏蒸方面进行早期检测和更好的治疗,我们已经制造了一种低成本的系统,可以自动检测和熏蒸番茄作物。我们的设计主要分为两个部分,第一部分是引诱器陷阱,利用FC-51红外传感器对果蝇进行检测;第二种是由电磁阀、泵和喷头组成的喷洒系统。两者都通过使用ESP-NOW协议的无线通信器(ESP32)连接。对两个部分一起工作进行了测试,最终形成了一个自主且易于实施的系统,这对种植者来说是一个优势。
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引用次数: 0
URL-Based Dynamic Monitoring of Android Malware using Machine Learning 基于url的基于机器学习的Android恶意软件动态监控
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997633
O. Somarriba, Henry Jaentschke Urbina
Android malware depend heavily on DNS traffic to provide flexible communications between compromised smart devices and malicious infrastructure. Nevertheless, we found that there is a gap between connecting DNS queries requests by smart devices and the logs at the DNS-service network level to work altogether. So, this paper combines and correlates two approaches: top-down detection by identifying malware domains using DNS traces at the network level, and bottom-up detection at the device level using the dynamic analysis in order to capture the URLs requested on a number of applications to pinpoint the malware. Here, we propose a URL-based dynamic monitoring of Android malware, with two parts, namely: (i) a client side which is a DNS sniffer that captures and classifies (through the usage of blacklists) the URL(s) requested by app(s) under scrutiny running on the smart device, and (ii) a central server where these URLs are collected and classified by using a machine learning algorithms and where a visualization takes place of the most malware attacks detected. Addditionally, the malicious URLs discovered are used in order to carry out a string pattern matching search into the DNS logs of DSN servers to pinpoint another infected device. Our experimental results with the proposed monitoring system using the Random Forest algorithm show, regarding the F1-Score, a better performance than the previous works with Decision Tree algorithm such as J.48 classifier.
Android恶意软件在很大程度上依赖于DNS流量,以便在受损的智能设备和恶意基础设施之间提供灵活的通信。然而,我们发现通过智能设备连接DNS查询请求和DNS服务网络级别的日志之间存在差距。因此,本文结合并关联了两种方法:自上而下的检测,通过在网络级别使用DNS跟踪识别恶意软件域,以及自下而上的检测,在设备级别使用动态分析,以捕获在许多应用程序上请求的url,以查明恶意软件。在这里,我们提出了一个基于URL的Android恶意软件动态监控,包括两个部分,即:(i)客户端是一个DNS嗅探器,它捕获和分类(通过使用黑名单)在智能设备上运行的应用程序(s)所请求的URL,以及(ii)一个中央服务器,通过使用机器学习算法收集和分类这些URL,并且可视化发生在检测到的大多数恶意软件攻击的地方。此外,发现的恶意url用于在DSN服务器的DNS日志中执行字符串模式匹配搜索,以查明另一个受感染的设备。实验结果表明,本文提出的基于随机森林算法的监测系统在F1-Score方面的性能优于先前使用决策树算法(如J.48分类器)的监测系统。
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引用次数: 0
Comparison of wind resource from physical and virtual weather stations in the municipality of La Estrella Tabasco 拉埃斯特雷拉塔巴斯科市物理气象站和虚拟气象站的风力资源比较
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997722
Yoswaldo Gómez Cabrera, Gabriel Villaseñor Castro, R. Cortez, Iridian Karime Ángeles Pérez
This paper presents a comparison of the wind resource in the coastal zone of Tabasco, Mexico for planning and designing on-shore wind farms. This comparison is made through physical and virtual weather stations called MERRA2 and ERA5. The wind characteristics at the chosen site are presented, then the wind resource analysis is made. The power density will be determined and based on this, the wind farm will be designed with the wind turbine and its layout that obtains the highest power and electricity production.
本文对墨西哥塔巴斯科沿海地区的风力资源进行了比较,为陆上风电场的规划和设计提供了参考。这种比较是通过被称为MERRA2和ERA5的物理和虚拟气象站进行的。介绍了所选场地的风力特征,并对风资源进行了分析。确定功率密度,在此基础上设计风力发电场,选择获得最大功率和发电量的风力机及其布局。
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引用次数: 0
Design of a solar-powered air pollution monitoring system under tropical climate environments 热带气候环境下太阳能空气污染监测系统的设计
Pub Date : 2022-11-09 DOI: 10.1109/CONCAPAN48024.2022.9997667
E. Collado, Gokul Harish, Y. Sáez
Air pollution is a phenomenon that combines and rapidly spreads solid particles and gases in the air, being one of the great problems that affects the environment and health of living beings worldwide. Polluted air contains hazardous gases like carbon dioxide (CO2), nitrogen dioxide (NO2), sulphur dioxide (SO2), chloro-fluro-carbons, ozone (O3), and particulate matter (PM10, PM2.5). These pollution agents must be monitored and maintained within standards. One of the solutions currently implemented is the use of fixed monitoring stations that measure the concentration of pollutants. These stations normally operate using power from the electrical distribution network, which is not feasible when measurements are taken in remote locations. Another option is to use a battery bank to power the stations, which makes the system expensive, heavy, and dependent. Therefore, the main objective in this work is to propose an air pollution monitoring system that is powered by solar energy, which is an energy source abundant in nature in most countries. This prototype is implemented in project ITE18-R2-011: Monitoring network based on the Internet of Things for the generation of air pollution indicators in Panama, which is funded by the Panamanian Government and SENACYT. This would make the system cost-effective, compact, environmental-friendly, and autonomous in terms of its source. Design process starts with literature survey on conventional designs and solar cells. Additionally, there will be study on solar radiation in Panama. After that a PCB will be designed for this which can be optimized further for better efficiency in terms of power consumption.
空气污染是空气中固体颗粒和气体结合并迅速扩散的现象,是影响全球环境和生物健康的重大问题之一。被污染的空气含有有害气体,如二氧化碳(CO2)、二氧化氮(NO2)、二氧化硫(SO2)、氯氟碳、臭氧(O3)和颗粒物(PM10、PM2.5)。必须对这些污染物质进行监测并使其保持在标准之内。目前实施的解决方案之一是使用固定监测站来测量污染物的浓度。这些监测站通常使用配电网络的电力运行,这在偏远地区进行测量时是不可行的。另一种选择是使用电池组为充电站供电,这使得系统昂贵、笨重且依赖。因此,本工作的主要目标是提出一种以太阳能为动力的空气污染监测系统,太阳能在大多数国家都是自然界中丰富的能源。该原型在由巴拿马政府和SENACYT资助的项目ITE18-R2-011:基于物联网的巴拿马空气污染指标生成监测网络中实现。这将使该系统具有成本效益,紧凑,环保,并在其来源方面自主。设计过程从传统设计和太阳能电池的文献调查开始。此外,巴拿马还将进行太阳辐射研究。之后,将为此设计PCB,可以进一步优化以提高功耗方面的效率。
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引用次数: 1
期刊
2022 IEEE 40th Central America and Panama Convention (CONCAPAN)
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