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2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)最新文献

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Forecasting GDP of India and its neighbouring countries using Time Series Analysis 用时间序列分析预测印度及其邻国的GDP
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938189
Ankita Raj, S. K. Singh
The gross domestic product (GDP), a key indicator of an economy's index, is a market estimate of all final services and items produced within a country. This research aims to analyze, compare, and forecast the GDP of India's neighboring countries (Pakistan, Nepal, Bangladesh, and China). As a result, this paper employs an autoregressive integrated moving average (ARIMA) model, Auto-ARIMA and regression model. These models used to do train with data to better compare with different countries and forecast future values. Performance is analyzed through RMDSPE, AE, MAPE, NRMSE and RMSPE, and forecasted the countries' GDP as mentioned above from 2021 to 2026. Further, policy implications are also suggested.
国内生产总值(GDP)是一个经济指数的关键指标,是一个国家生产的所有最终服务和项目的市场估计。本研究旨在分析、比较和预测印度周边国家(巴基斯坦、尼泊尔、孟加拉国和中国)的GDP。因此,本文采用自回归综合移动平均(ARIMA)模型、Auto-ARIMA模型和回归模型。这些模型使用数据进行训练,以便更好地与不同国家进行比较,并预测未来的价值。通过RMDSPE、AE、MAPE、NRMSE和RMSPE进行绩效分析,并对上述国家2021 - 2026年的GDP进行预测。此外,还提出了政策影响。
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引用次数: 0
Differential Protection of Microgrid based on Rate of Change of Apparent Power 基于视在功率变化率的微电网差动保护
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938363
Abinash Nanda, Nityananda Giri, P. Nayak, R. Mallick, Sairam Mishra, A. Choudhury
Increasing penetration of renewable energy sources in microgrid increases the complexity of coordinated control and protection issues. Differential protection seems to be reliable and accurate. This research proposed a new differential protection scheme to detect different types of series and shunt faults using rate of change of apparent power. This proposed technique has been implemented using MATLAB with a standard microgrid test system. Simulation results show that the proposed method is able to detect faults with less detection time and higher accuracy.
微电网中可再生能源的日益普及增加了协调控制和保护问题的复杂性。差动保护似乎是可靠和准确的。提出了一种利用视在功率变化率检测不同类型串联和并联故障的差动保护方案。该技术已在一个标准的微电网测试系统上用MATLAB实现。仿真结果表明,该方法能够以较短的检测时间和较高的检测精度检测故障。
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引用次数: 0
Quantum based Northem Rockhopper Penguin Optimization Algorithm for Power Loss Diminution 基于量子的北跳岩企鹅减功耗优化算法
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938175
L. Kanagasabai
In this paper Quantum based Northern rockhopper penguin Optimization (QNPO) Algorithm is smeared for resolving the loss diminishing problem. Northern rockhopper penguin implements clustering, in the progression of perilous winters for sustain. Northern rockhopper penguin accomplishes gathering to conserve their zing and exploits on tuft in elevated temperature. Elevated temperature grade supports to realize exploration and exploitation trade between Northern rockhopper penguins. Quantum mechanics has been combined with Northern rockhopper penguin Optimization Algorithm. Proposed QNPO Algorithm is corroborated in IEEE systems.
本文提出了一种基于量子的北跳岩企鹅优化算法(QNPO)来解决损失递减问题。北方跳岩企鹅在危险的冬天里群居,以维持生存。北方跳岩企鹅在高温下完成了聚集以保存它们的活力和利用丛。温度等级的升高为实现北跳岩企鹅之间的勘探开发贸易提供了有利条件。将量子力学与北跳岩企鹅优化算法相结合。提出的QNPO算法在IEEE系统中得到了验证。
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引用次数: 0
A Multi-Functional, 3P4W Utility Integrated Single- Stage Distributed Generating System With DROGI Based Control Approach 基于DROGI控制方法的多功能3P4W公用事业集成单级分布式发电系统
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938332
Ritesh Gupta, S. Ghatakchoudhuri
This article shows a Three-Phase, Four-Wire (3P4W) AC mains supportive single-stage, Solar Photovoltaic-Battery Energy Storage-Voltage Source Converter (SPV-BES-VSC) based Distributed Energy Generation System (DEG) to accomplish multiple functions, is presented using Double Reduced Order Generalised Integrator (DROGI). DROGI based Current Control performs multi-tasking such as, power factor correction and eliminates zero sequence harmonic from the neutral wire. One of the ROGI functions is to produce the 50 Hz peak component from the distorted, balanced/unbalanced load current. The purpose of another ROGI is to generate a sinusoidal unit template for reference AC mains current, even if sag/swell occurs at the Point of Common Coupling (PCC). BES system is protected from overcharge/deep discharge by using a Energy Management System (EMS). The complete control algorithm is realised in MATLAB in Discrete Time Frame (DTF) using simulink and Sim Power System (SPS) toolboxes for different operating conditions. The Total Harmonic Distortion (THD) of AC mains current is noticed within 5% according to IEEE-519 and 929, respectively.
本文介绍了一种基于双降阶广义积分器(DROGI)的分布式发电系统(DEG),该系统支持单级太阳能光伏-电池储能-电压源转换器(spv - es - vsc)的三相四线(3P4W)交流电源,可实现多种功能。基于DROGI的电流控制执行多任务,如功率因数校正和消除零线的零序谐波。ROGI的功能之一是从扭曲的、平衡的/不平衡的负载电流中产生50 Hz的峰值分量。另一个ROGI的目的是为参考交流电源电流生成正弦单元模板,即使在共耦合点(PCC)发生凹陷/膨胀。BES系统通过使用能量管理系统(EMS)来防止过充/深度放电。采用simulink和Sim Power System (SPS)工具箱,在MATLAB中实现了离散时间框架(DTF)下的完整控制算法。根据IEEE-519和ieee - 929,交流市电电流的总谐波失真(THD)在5%以内。
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引用次数: 0
An Efficient Method to Localize and Quantify Axial Displacement in Transformer Winding Using Support Vector Machines 基于支持向量机的变压器绕组轴向位移定位与量化方法
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938221
P. Saji, A. Muhammed, V. V.
Power transformers are an inevitable and expensive equipment in an electrical power system. Condition monitoring uses predictive analysis to determine whether a problem is present or absent in order to prevent transformer failures and guarantee the transformer's safe operation. Among various condition monitoring techniques, Sweep Frequency Response Analysis (SFRA) is a powerful and reliable tool to detect winding deformations. However, the diagnosing potential of SFRA is still its infant state. Any mechanical damage in the transformer winding will change the equivalent circuit parameters and this change will be reflected in the FRA traces. By comparing the FRA traces of the testing transformer with normal winding the fault can be detected. To locate and quantify the axial displacement these FRA traces need to be acknowledged precisely. Support Vector Machine (SVM), a supervised machine learning technique helps to locate and quantify the axial displacement with the help of features extracted from the FRA traces of testing transformer and nominal winding. A series of axial displacements is simulated in FEMM Software and corresponding equivalent circuit parameters are used to generate FRA traces. Furthermore, features are extracted from these FRA traces to train the SVM model to enable it to predict the location and quantity of axial displacement accurately. Finally, the accuracy of this SVM model is tested through randomly created axial displacements data. The result indicates the ability of this technique to be used as an intelligent and accurate diagnostic tool.
电力变压器是电力系统中不可避免的昂贵设备。状态监测通过预测分析来确定是否存在问题,以防止变压器故障,保证变压器的安全运行。在各种状态监测技术中,扫描频响分析(SFRA)是检测绕组变形的一种强大而可靠的工具。然而,SFRA的诊断潜力仍处于初级阶段。变压器绕组的任何机械损伤都会改变等效电路参数,这种变化将反映在FRA走线中。通过比较测试变压器的FRA走线与正常绕组,可以检测出故障。为了定位和量化轴向位移,需要精确地识别这些FRA轨迹。支持向量机(SVM)是一种监督式机器学习技术,利用从测试变压器和标称绕组的FRA轨迹中提取的特征来定位和量化轴向位移。在FEMM软件中模拟了一系列轴向位移,并利用相应的等效电路参数生成了FRA走线。然后,从这些FRA轨迹中提取特征来训练SVM模型,使其能够准确预测轴向位移的位置和数量。最后,通过随机生成的轴向位移数据对SVM模型的精度进行检验。结果表明,该技术可作为一种智能、准确的诊断工具。
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引用次数: 0
Model Predictive Control for Magnetic Linked Multiport Converter 磁链多端口变换器的模型预测控制
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938296
Zhipeng Qi, Md. Ashib Rahman, Md. Rabiul Islam
The magnetic linked multiport converter (MLMC) has high degree of control flexibility and can be operated as an effective interface for renewable energy integration to the traditional power grid and electric vehicle charging. Unlike the traditional magnetic linked dual port converters, the MLMC provides multiple ports, which share a common magnetic link. The MLMC has soft-switching ability, ensures galvanic isolation, and facilitates high-density power transmission. For the robust and effective operation of the MLMC, the voltages at the multiple ports should be perfectly balanced under rapid load change conditions so that the ports can be accessed in a plug-n-play manner. The traditional linear controller suffers from high voltage overshoot and undershoot under abrupt load change and the controller can be saturated which in turn makes the system unbalance. In this paper, a model predictive control technique is developed and proposed first time for the MLMC to ensure robust voltage control. The performance of the controller is tested under different load change conditions at different ports of the MLMC. The results show that the controller effectively balances the voltages under varying loads connected to the MLMC at random time interval. Moreover, with the predictive controller, the voltages achieves very fast dynamic response and do not show any significant voltage overshoot and undershoot, which indicates the superiority of the controller.
磁链多端口变换器(MLMC)具有高度的控制灵活性,可以作为可再生能源与传统电网集成和电动汽车充电的有效接口。与传统的磁链接双端口转换器不同,MLMC提供多个端口,这些端口共享一个共同的磁链接。MLMC具有软开关能力,保证了电流隔离,便于高密度输电。为了使MLMC稳健有效地工作,在负载快速变化的条件下,多个端口的电压必须完美地平衡,使端口能够以即插即用的方式访问。传统的线性控制器在负载突变情况下存在电压过调和欠调的问题,控制器容易饱和,使系统失去平衡。本文首次提出了一种模型预测控制技术,用于MLMC的鲁棒电压控制。在MLMC的不同端口,测试了控制器在不同负载变化条件下的性能。结果表明,该控制器能有效地在随机时间间隔内平衡连接在MLMC上的不同负载下的电压。此外,使用预测控制器,电压可以实现非常快的动态响应,并且不会出现明显的电压超调和欠调,这表明了控制器的优越性。
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引用次数: 3
Cardiac Magnetic Resonance Imaging Segmentation using Ensemble of 2D and 3D Deep Residual U-Net 基于二维和三维深度残差u网集成的心脏磁共振成像分割
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938245
Kamal Raj Singh, Ambalika Sharma, G. Singh
The domain of deep learning stimulates medical image analysis, which is a catalyst of scientific research and an essential element of healthcare. Since semantic segmentation techniques empower image processing and quantitative determination in various applications, designing a dedicated solution is challenging and heavily reliant on input data characteristics and hardware constraints. Cardiac magnetic resonance imaging segmentation provides three essential heart structures, left ventricle (LV) cavity, myocardium (MYO), and right ventricle (RV) cavity. In clinical applications, manual contouring is frequently utilized to perform semantic segmentation. A fully automated cardiac magnetic resonance image (CMRI) segmentation technique is becoming more desirable as deep learning-based frameworks advance. Motivated by the power of U-Net, residual network, and deep supervision, this paper proposes a Deep Residual U-Net to achieve better LV, MYO, and RV segmentation in short-axis CMRI. The model is formed with residual connections and has a similar layout to U-Net. It provides three advantages: First, residual connections make deep network training easier. Second, the network's rich skip connections enable feature propagation, allowing for network creation with lower complexity but more remarkable performance. Third, Deep supervision facilitates the loss computation at every feature dimension except at least two, empowering gradients to be implanted more deeply in the network and improving each layer's training in Deep Residual U-Net. Automated Cardiac Diagnosis Challenge (ACDC) 2017 dataset has been used to assess the segmentation efficiency of proposed model. The proposed approach significantly outperformed all other methods, evidencing its supremacy over recent state-of-the-art U-Net-based techniques.
深度学习领域激发了医学图像分析,这是科学研究的催化剂,也是医疗保健的基本要素。由于语义分割技术为各种应用中的图像处理和定量确定提供了支持,因此设计专用解决方案具有挑战性,并且严重依赖于输入数据特征和硬件限制。心脏磁共振成像分割提供了三个基本的心脏结构,左心室(LV)腔、心肌(MYO)和右心室(RV)腔。在临床应用中,经常使用人工轮廓来进行语义分割。随着基于深度学习框架的发展,全自动心脏磁共振图像(CMRI)分割技术正变得越来越受欢迎。在U-Net、残差网络和深度监督的推动下,本文提出了一种深度残差U-Net,以实现短轴CMRI中较好的LV、MYO和RV分割。该模型由剩余连接组成,其布局与U-Net相似。它提供了三个优点:第一,残差连接使深度网络训练更容易。其次,网络丰富的跳跃连接使特征传播成为可能,使得网络创建的复杂性更低,但性能更显著。第三,深度监督促进了除至少两个特征维度之外的每个特征维度的损失计算,使梯度能够更深入地植入网络,并改善了Deep Residual U-Net中每层的训练。利用ACDC (Automated Cardiac Diagnosis Challenge) 2017数据集对该模型的分割效率进行了评估。所提出的方法明显优于所有其他方法,证明其优于最近最先进的基于u - net的技术。
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引用次数: 0
Performance Analysis of Switched-Inductor Active Switched Boost Inverter 开关电感有源开关升压逆变器的性能分析
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938366
Vadthya Jagan, Chandrashekar Anupati, Shravan kumar Nallachervula, Hazrath Ali Shaik, Manasa Chilkamari
A novel Switched-Inductor Active Switched-Boost Inverter (SL-ASBI) is proposed in this paper by replacing two capacitors C2 and C3 in the switched-capacitor-inductor network (SCL-ASBI) with two diodes D4 and D5 keeping other parameters or elements remain same. The proposed topology provides same boost factor as that of SL-ZSI by a slighter numeral of apparatuses. Moreover, it provides less stress athwart the inductor and capacitor compared with a SCL-ASBI. The proposed inverter named as SL-ASBI, and examination of the projected inverter is carried out. The proposed SL-ASBI provides high boost factor /voltage gain at small duty ratio and at high modulation index to deliver better output wave shape. The theoretical examination is confirmed with the simulation outcomes. This projected topology also delivers unremitting input current, low capacitor stress besides little inrush current at start-up condition.
本文提出了一种新颖的开关电感有源开关升压逆变器(SL-ASBI),它将开关电感网络(SCL-ASBI)中的C2和C3两个电容替换为D4和D5两个二极管,其他参数或元件保持不变。所提出的拓扑结构通过较少数量的设备提供与SL-ZSI相同的升压因子。此外,与SCL-ASBI相比,它在电感和电容器上提供的应力更小。该逆变器命名为SL-ASBI,并对该逆变器进行了检验。所提出的SL-ASBI在小占空比和高调制指数下提供高升压因数/电压增益,以提供更好的输出波形。理论验证与仿真结果相吻合。这种投影拓扑结构还提供了持续的输入电流,除了启动条件下的小涌流外,电容器应力低。
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引用次数: 0
Data Analysis of Non Fungible Tokens (NFTs) Pricing using Brokerage Firm data 使用经纪公司数据对不可替代代币(nft)定价进行数据分析
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938298
M. Darshan, S.R Raswanth, Priyanka Kumar
In recent times, the rise of Non Fungible Tokens has been inevitable. An NFT is a special kind of cryptographic token that represents the ownership of a unique piece of digital property. They are tamper-proof due to the use of distributed public ledger that records verified information across a network of computers. With the rise of crypto-trading, the NFT market segment has seen an accumulation in its trading volume in the capital market. There are various factors determining the price and sales of the NFTs and there is a need for meaningful insights from the data generated intermittently over time. With this as motivation, this proposed research work explores the factors that create an impact on the NFT market and in-depth data analysis with the help of brokerage firm data. This proposed work helps NFT enthusiasts would be able to derive the correlation between cryptocurrency market and NFT market.
近年来,不可替代代币的兴起是不可避免的。NFT是一种特殊的加密令牌,它代表了一个独特的数字财产的所有权。它们是防篡改的,因为使用了分布式公共分类账,记录了计算机网络上经过验证的信息。随着加密交易的兴起,NFT细分市场在资本市场的交易量有所积累。决定nft价格和销售的因素有很多,需要从一段时间内断断续续产生的数据中获得有意义的见解。以此为动机,本研究拟探讨影响NFT市场的因素,并借助经纪公司数据进行深入的数据分析。这项提议的工作有助于NFT爱好者能够推导出加密货币市场和NFT市场之间的相关性。
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引用次数: 2
Bioinspired Flapping Foil With Trailing Edge Flap For Remotely Operated Vehicles (ROVs) 用于遥控车辆(rov)的带有后缘襟翼的仿生襟翼箔
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938228
N. P. Mannam, Sanju Kumar N T, Prasanth Kumar Duba, P. Rajalakshmi
Highly efficient propulsive mechanisms of aquatic swimming creatures could serve as inspiration for developing new propulsion methods where it exceeds the performance of present-day thrusters and propellers for ASVs, AUVs, and ROVs. The advantages of eco-friendly propulsion combined with a lesser wake could be advantageous for marine vehicles' stability and maneuvering. As a result, we need to improve our knowledge of fish or dolphin swimming hydrodynamics and their fluid-structure interaction to develop benchmark designs for new propulsion methods. Flapping foil thrusters for propulsion has sparked much interest in recent years. AUVs, ASVs, and ROVs vehicles could greatly benefit from this technology. In dolphin swimming kinematics, the flapping foil thruster is an essential component. This research aims to understand better the hydrodynamics and fluid-structure interaction of flapping foils subjected to heaving and pitching motions. In the present study, the bio-inspired flapping foil thrusters fitted with trailing edge flaps are studied experimentally using flow visualization techniques such as 2D particle image velocimetry (PIV). The time average vorticity contours and instantaneous velocity contours are presented in this study. The flapping foils with trailing edge flaps are immersed in a free stream of uniform flow speed varying from 5 to 10 cm/s. The operating Reynold number (Re) range is 500 to 4300. The Strouhal number range is 0.2 to 0.3. This study also investigated the effect of flapping foil without trailing edge flaps using 2D numerical simulations. By simulating the wake structure and its evolution, the present study aims to understand the vortex shedding mechanisms of flapping foil with or without trailing edge flaps, determining thrust and propulsive efficiency. The vortex shedding mechanisms for both the foils are presented and discussed in detail.
水生游泳生物的高效推进机制可以为开发新的推进方法提供灵感,其性能超过目前asv, auv和rov的推进器和螺旋桨。生态推进的优势与较小的尾流相结合,将有利于船舶的稳定性和操纵性。因此,我们需要提高我们对鱼或海豚游泳流体动力学及其流固相互作用的认识,以开发新的推进方法的基准设计。近年来,用于推进的扑翼翼推进器引起了人们的极大兴趣。auv、asv和rov都可以从这项技术中受益匪浅。在海豚游泳运动学中,扑翼推进器是必不可少的组成部分。本研究旨在更好地了解受起伏运动和俯仰运动影响的扑翼的流体力学和流固相互作用。本文利用二维粒子图像测速(PIV)等流动可视化技术,对尾翼型仿生扑翼推进器进行了实验研究。本文给出了时间平均涡量曲线和瞬时速度曲线。带后缘襟翼的襟翼浸入5 ~ 10cm /s均匀流速的自由流中。当前运行的雷诺数范围为500 ~ 4300。斯特罗哈尔数的范围是0.2到0.3。本文还采用二维数值模拟的方法研究了无尾缘襟翼的扑翼效果。通过模拟尾流结构及其演变,研究了带或不带尾缘襟翼的扑翼旋涡脱落机理,从而确定了推力和推进效率。提出并详细讨论了这两种箔片的涡脱落机理。
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引用次数: 0
期刊
2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)
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