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2021 International Conference in Advances in Power, Signal, and Information Technology (APSIT)最新文献

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Detection and Classification of Power Quality Disturbances by Using Discrete Teager Energy Operator in the PV-Based DC Microgrid 基于pv的直流微电网中离散能量算子的电能质量扰动检测与分类
K. Anjaiah, P. K. Dash, R. Bisoi
Nowadays the usage of circuit breakers, switches, converters, and non-linear loads is increasing rapidly. These are frequently caused by power quality disturbances (PQ) in the electrical network. It is necessary to detect and classify the different PQ disturbances (i.e. single and mixed) in order to prevent the network and its connected equipment. This paper presents PQ disturbances detection and classification by using a discrete Teager energy operator (DTEO). Initially, voltage signals of PQ disturbances are captured from the proposed microgrid i.e. PV based DC microgrid at point of common coupling (PCC). Further, these signals are passed through DTEO for detection with the help of a first peak. These detected PQ signals are passed through the statistical features i.e. Teager energy kurtosis and Teager energy mean for classification by using the simple decision tree. The performance and superiority of the proposed method are verified in terms of classification accuracy (CA) when compared to other existing methods. Here it is evidenced that the proposed method is simple, more flexible and it reduces the complexity by avoiding the other signal processing algorithms.
目前,断路器、开关、变换器和非线性负载的使用正在迅速增加。这些通常是由电网中的电能质量干扰(PQ)引起的。为了防止网络及其连接设备的干扰,有必要对不同的PQ干扰(即单一的和混合的)进行检测和分类。本文利用离散Teager能量算子(DTEO)对PQ干扰进行检测和分类。最初,PQ扰动的电压信号从所提出的微电网中捕获,即基于PV的直流微电网在公共耦合点(PCC)。此外,这些信号通过DTEO进行第一个峰值的检测。将检测到的PQ信号通过统计特征Teager能量峰度和Teager能量均值进行简单决策树分类。通过与现有方法的分类精度对比,验证了该方法的性能和优越性。实验结果表明,该方法简单、灵活,避免了其他信号处理算法的干扰,降低了信号处理的复杂度。
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引用次数: 1
QoS Based Energy Efficiency Maximization for Uplink NOMA Networks 基于QoS的上行NOMA网络能效最大化
Priya Gupta, D. Ghosh
Non orthogonal multiple access (NOMA) grasped remarkable interest in fifth generation (5G) owing to its remarkable spectral efficiency. Less resource availability motivates researchers to find an efficient way to distribute it amongst users. While taking into account of power budget and minimum user rate (QoS) constraint, the system energy efficiency (EE) optimization problem is formulated to balance the system throughput and total power consumption. Our aim is to optimize channel assignment with power allocation for the maximization of the EE in uplink NOMA system. Energy efficient resource distribution technique with a lower degree of complexity is discussed. System EE is an output metric that is addressed, evaluated, and considered for the simulation outcomes.
非正交多址(NOMA)由于其显著的频谱效率在第五代(5G)中引起了人们的极大兴趣。较少的资源可用性促使研究人员寻找一种有效的方式在用户之间分配资源。在考虑系统功耗预算和QoS约束的基础上,提出了平衡系统吞吐量和总功耗的系统能效优化问题。我们的目标是优化信道分配与功率分配,以最大限度地提高上行NOMA系统的EE。讨论了一种低复杂度的节能资源分配技术。系统EE是针对模拟结果进行处理、评估和考虑的输出度量。
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引用次数: 0
Performance of Ni-doped ZnO nanoparticles towards CH3-CO-CH3 sensing ni掺杂ZnO纳米颗粒对CH3-CO-CH3的传感性能
Nirlipta Kar, S. Kamilla
Early detection of volatile organic compounds like acetone (CH3-CO-CH3) demands a prior work for a healthy environment as their presence with higher concentration negatively impacts health, causing serious diseases. To fabricate a VOC gas sensor operating at low temperature with improved sensitivity, Ni-doped ZnO nanoparticles (NZNPs) were prepared by the sol-gel auto combustion method by taking zinc nitrate hexahydrate and nickel nitrate hexahydrate as starting materials with very low cost. X-ray diffraction (XRD) patterns reveals polycrystalline nature of the samples with hexagonal wurtzite structure. The samples are found to be free from impurity phases with average crystallite size in the nanometer range, indicating positive signs towards improved gas sensing properties. Scanning electron microscopy (SEM) studied surface morphology, which reveals small grain size with a porous arrangement. Sensing properties of NZNPs were carried out for the detection of acetone both at room temperature (RT) and 100°C. It was observed that NZNPs show better sensitivity with lower response time(~18sec.) and recovery time(~8sec.) towards acetone at the optimal operating temperature of 100°C, indicating its applicability in low-temperature operating sensing devices.
挥发性有机化合物如丙酮(CH3-CO-CH3)的早期检测需要健康环境的前期工作,因为它们的高浓度存在会对健康产生负面影响,导致严重的疾病。为了制备灵敏度更高的低温VOC气体传感器,以六水合硝酸锌和六水合硝酸镍为原料,采用溶胶-凝胶自燃烧法制备了镍掺杂ZnO纳米粒子(NZNPs),成本极低。x射线衍射(XRD)显示样品具有六方纤锌矿结构的多晶性质。发现样品中不含杂质相,晶粒尺寸在纳米范围内,表明气敏性能有改善的积极迹象。扫描电子显微镜(SEM)研究了表面形貌,显示出小晶粒和多孔排列。研究了NZNPs在室温和100℃下检测丙酮的传感性能。结果表明,在最佳工作温度为100℃时,NZNPs对丙酮的响应时间(~18sec)和恢复时间(~8sec)较短,灵敏度较高,适用于低温工作传感器件。
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引用次数: 0
The MHD Plane Couette Flow in Porous Medium with Transpiration Cooling 蒸腾冷却多孔介质中的MHD平面Couette流
S. Sahoo, Paramananda Rout
The study deals with the steady MHD plane Couette flow in porous medium with transpiration cooling of an incompressible viscous fluid. The flow past through two flat permeable plate of infinite length placed horizontally. The solution of the linear ordinary differential equations of velocity and temperature are obtained analytically. The controls of the pertinent parameter of the flow are scrutinized via graphs. The skin-friction coefficient and Nusselt number for different flow parameters have been computed and displayed in table. Some important findings of the study are: Lorentz force has decelerating effect on the velocity profile. The flow field temperature is less for less viscous fluid and is more for more viscous fluid. The drag near the plate increases with the augmentation in the porosity. The present model has applications in heat exchangers, jet nozzles, turbines, etc. To increase the effectiveness of the surface of the heat insulation, the study of free convection is essential to estimate the behavior of porosity in heat transfer. This model can also be used as a quick design instrument for “porous transpiration cooling architectures”.
研究了不可压缩粘性流体在多孔介质中具有蒸发量冷却的MHD平面稳态库埃特流。水流通过水平放置的两个无限大长度的平坦透水板。得到了速度和温度线性常微分方程的解析解。流的相关参数的控制是通过图表仔细检查的。计算了不同流动参数下的摩擦系数和努塞尔数,并将其显示在表格中。研究的一些重要发现是:洛伦兹力对速度剖面有减速作用。黏度较低的流体流场温度较小,黏度较高的流体流场温度较大。随着孔隙率的增大,靠近板的阻力增大。该模型适用于换热器、喷嘴、涡轮等。为了提高表面的隔热效果,研究自由对流是评估孔隙传热行为的必要条件。该模型也可作为“多孔蒸腾冷却结构”的快速设计工具。
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引用次数: 0
Optimal Allocation of DSTATCOM Units in Electric Distribution Network Using Improved Symbiotic Organisms Search Algorithms 基于改进共生生物搜索算法的配电网DSTATCOM单元优化配置
S. Dash, S. Mishra, Usharani Raut, A. Abdelaziz
This paper utilizes various proposed improved versions of the Symbiotic Organisms Search (SOS) algorithm to optimally allocate DSTACOMs in an electric distribution network to minimize power loss and to improve the voltage profiles. The performances of the three improved Symbiotic Organisms Search algorithms and the original Symbiotic Organism Search algorithm are compared applying these for a 69-bus test distribution system to optimally select one, two and three numbers of DSTATCOMs. Statistical analysis of the results establishes the robustness of the proposed improved SOS.
本文利用各种提出的改进版本的共生生物搜索(SOS)算法来优化分配配电网络中的dstacom,以最大限度地减少功率损耗并改善电压分布。将改进的三种共生生物搜索算法与原有的共生生物搜索算法进行性能比较,并将其应用于一个69总线测试配电系统中,以最优地选择1、2和3个数的dstatcom。统计分析结果证实了改进SOS的稳健性。
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引用次数: 1
IoT Based Fog and Cloud Analytics in Smart Dairy Farming 智能奶牛养殖中基于物联网的雾和云分析
Subhra Debdas, Sarbani Mohanty, Biswarup Biswas, Anuridhi Chhangani, Subhankar Samanta, Srijita Chakraborty
Today, we find the growing need of interconnecting devices and networks around us to achieve smarter technology. We are in an era where every field of human livelihood and ecommerce can be enhanced by deploying sensors and incorporating IoT. Dairy farming is no exception. In this paper, we provide a subtle idea to enhance revenue and milk production from dairy farming by early detection of lameness in cattle through deployment of sensors and cloud technology. The early detection helps taking necessary precautions by farmer. The paper aims to provide a cost effective way for early detection of lameness feature in cattle and also states the other benefits and challenges associated with it.
今天,我们发现越来越需要连接我们周围的设备和网络来实现更智能的技术。我们正处于一个通过部署传感器和结合物联网来增强人类生活和电子商务各个领域的时代。奶牛养殖业也不例外。在本文中,我们提供了一个微妙的想法,通过部署传感器和云技术,通过早期检测牛的跛行来提高奶牛养殖的收入和牛奶产量。早期发现有助于农民采取必要的预防措施。本文旨在为早期检测牛的跛行特征提供一种经济有效的方法,并说明与之相关的其他好处和挑战。
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引用次数: 4
An Improved Symbiotic Organisms Search Algorithm for Multi-objective Simultaneous Optimal Allocation of DSTATCOM and DG Units DSTATCOM和DG单元多目标同时优化配置的改进共生生物搜索算法
S. Dash, S. Mishra, Usharani Raut, A. Abdelaziz
This paper proposes an improved version of the Symbiotic Organisms Search (SOS) algorithm based on oppositional learning and adaptive chaotic local search strategy for simultaneous optimal allocation of multiple DSTACOMs and different types of DG units in an electric distribution network to minimize power loss, improve the voltage profiles and enhance voltage stability margin. The performance of the improved Symbiotic Organisms Search algorithm and the original Symbiotic Organism Search algorithms are compared applying these for a 33-bus test distribution system.
本文提出了一种改进的基于对立学习和自适应混沌局部搜索策略的共生生物搜索(SOS)算法,用于配电网中多个dstacom和不同类型DG机组的同时优化分配,以最大限度地减少功率损耗,改善电压分布,提高电压稳定裕度。将改进的共生生物搜索算法与原有的共生生物搜索算法在33总线测试配电系统中的性能进行了比较。
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引用次数: 1
Differential Protection of Microgrid using Signal Processing Approach 基于信号处理方法的微电网差动保护
Nityananda Giri, R. Mallick, Tushar Kumar Patel, Sairam Mishra
A improved differential protection technique based on empirical mode decomposition is implemented with a small microgrid model. This research proposes an improved differential protection method for microgrid based on differential energy content of sampled current signal data. A modified empirical mode decomposition technique is used to decompose the raw current signals. The instantaneous energy content of most informative intrinsic mode function is computed for current waveforms. Threshold for differential energy content is selected to discriminate fault and no-fault conditions with varying operating conditions and varying network topology. The efficacy of the proposed technique is tested in terms of speed, dependability, reliability and security. Simulation outcomes displays versatility of the suggested approach.
针对小型微电网模型,提出了一种改进的基于经验模态分解的差动保护技术。本研究提出了一种改进的基于采样电流信号数据的差动能量含量的微电网差动保护方法。采用改进的经验模态分解技术对原始电流信号进行分解。对电流波形计算了最具信息量的本征模态函数的瞬时能量含量。选取差分能量含量阈值,区分不同运行工况和不同网络拓扑下的故障和无故障状态。从速度、可靠性、可靠性和安全性等方面验证了该方法的有效性。仿真结果显示了所建议方法的通用性。
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引用次数: 0
Morphometric Analysis of a Sub-Watershed of Lower Budhabalanga River Basin in Baleswar District, Odisha: A Remote Sensing and GIS Approach 基于遥感和GIS的印度奥里萨邦巴勒斯瓦尔地区布哈巴兰加河下游小流域形态计量学分析
Satyaranjan Giri, J. K. Tripathy, P. Kumar, Pratyasha Singh, D. Nandi, K. Mohanta
The characteristics of drainage system and their impact on landforms are best understood through comprehensive morphometric study of the basin in which they are found. The significant morphometric research parameters involve linear, regional and relief aspects from which a general understanding of physiography, geology, recent diastrophism, rock material composition etc. can be assessed. Remote Sensing and Geographic Information System (GIS) are important tools for determining morphometric analytical parameters. Different aspects of morphometric parameters were evaluated based on standard formulae/indices postulated by different authors and were examined in the context of sub watersheds of Budhabalang Basin. The study shows the amazing behaviour of the drainage channels extended with properties of large deposition and peak discharge. The river bank morphology of the study area has been shaped over the period and undergone continuous flood events due to its low relief and meandering pattern.
通过对流域的综合形态测量学研究,可以更好地了解流域的特征及其对地貌的影响。重要的形态计量学研究参数涉及线性、区域和地形方面,从中可以评估对地貌、地质、近期地壳运动、岩石物质组成等的总体认识。遥感和地理信息系统(GIS)是确定形态计量学分析参数的重要工具。基于不同作者提出的标准公式/指数,对不同方面的形态计量参数进行了评估,并在布达巴郎盆地的小流域进行了研究。研究结果表明,水渠扩展具有大淤积和峰值流量的特点。研究区河堤地形由于地势低缓、蜿蜒曲折,经历了长期的形成和持续的洪水事件。
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引用次数: 0
Covid-19 Data Analysis of India and Future Forecasting Using FbProphet 印度Covid-19数据分析及使用FbProphet进行未来预测
Biswarup Biswas, Subhra Debdas, Subhankar Samanta, Srijita Chakraborty, Anuridhi Chhangani, Sarbani Mohanty
COVID-19, the pandemic has created a fearsome sensation the entire world. Although in India, many articles of research had examined the spread of this deadly disease, but the population of our country makes it more important to have a closer look at the present scenario of the individual states. The whole world is facing this pandemic for the past 15 months since December 2019, the month when the very first case of covid-19was discovered in China from where it got spread throughout the globe. In January 2020, the first case of covid-19 in India was witnessed. For this very scenario in this paper, we have analyzed and crafted different sections for treatment methodologies and safety measures undertaken, detailed analysis of various States and Union Territories during the outbreak of Covis-19, count on the number of people infected, cured, and died along with the prediction of the upcoming situation of covid-19 in future months. Moreover several time series models had been studied among which FbProphet model fits best to our purpose of study.
COVID-19大流行在全世界引起了可怕的轰动。虽然在印度,许多研究文章审查了这一致命疾病的传播,但我国的人口使得更有必要仔细研究各个邦的现状。自2019年12月在中国发现第一例covid-19病例并传播到全球以来,过去的15个月里,全世界都面临着这场大流行。2020年1月,印度出现了第一例covid-19病例。对于本文中的这种情况,我们分析和编写了不同章节的治疗方法和采取的安全措施,详细分析了covid-19爆发期间各州和联邦领土的情况,计算了感染,治愈和死亡的人数,并预测了未来几个月即将到来的covid-19情况。此外,还研究了几种时间序列模型,其中FbProphet模型最适合我们的研究目的。
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引用次数: 0
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2021 International Conference in Advances in Power, Signal, and Information Technology (APSIT)
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