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2019 Innovations in Power and Advanced Computing Technologies (i-PACT)最新文献

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System Modeling using Predictor classes 使用Predictor类进行系统建模
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8959988
N. Sumedh, P. G. Hitesh, Sagar Basavaraju
System modeling has become one of the most actively researched fields in the last decade. This new-found interest in modeling of systems can be attributed to the impact it has as an inter-disciplinary concept as well as the increased need for optimized and intelligent modeling techniques for disruptive technologies such as machine learning, artificial intelligence and computer vision.This study proposes a generalized mathematical formula to frame a designated function (Target Function) with the help of an available function (Regressor Function) and predictor variables. Categorically, this research attempts to aid designers by providing a mathematical framework for them to substitute their datasets and obtain results thereby reducing the complexity of mathematical modeling required. Furthermore, the discussed design schematics have proved capable of modeling systems with algebraic, transcendental, stochastic behaviours. The necessary calculations and mathematical formulations have been tabulated and deliberated for the same.
系统建模是近十年来研究最为活跃的领域之一。这种对系统建模的新兴趣可以归因于它作为一个跨学科概念的影响,以及对机器学习、人工智能和计算机视觉等颠覆性技术的优化和智能建模技术的需求增加。本研究提出一个广义的数学公式,在可用函数(回归函数)和预测变量的帮助下,构建指定函数(目标函数)。明确地说,本研究试图通过提供一个数学框架来帮助设计者替换他们的数据集并获得结果,从而降低所需数学建模的复杂性。此外,所讨论的设计原理图已被证明能够对具有代数、先验、随机行为的系统进行建模。必要的计算和数学公式已制成表格,并为此进行了审议。
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引用次数: 0
Impact Assessment of DG in Radial Distribution Networks 径向配电网DG影响评价
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960181
C.B Arya Christy, Sreena Sreekumar, J. S. Savier
Integration of new energy sources in to existing grid may creates some major issues in the system, especially in protection co-ordination. This paper concentrate on the impact analysis of radial distribution network due to the insertion of Distributed Generation (DG). Different protection issues with DGs are focused here with co-ordinated radial power flow. A new methodology which reduces the effect of DG in protection coordination of the existing system is proposed. In this adaptive scheme, various protection co-ordination settings are provided in different locations of DG with different configurations of network. A portion of IEEE 13 node radial distribution test feeder is used to verify this proposed methodology. Electrical equivalent of 3 bus systems is also used for the analytical derivation of key parameters under faulted condition.
新能源与现有电网的整合可能会在系统中产生一些重大问题,特别是在保护协调方面。本文着重分析了分布式电源的插入对径向配电网的影响。不同的保护问题与dg集中在这里协调径向功率流。提出了一种减少DG对现有系统保护协调影响的新方法。在该自适应方案中,在DG的不同位置、不同组网配置下提供不同的保护协调设置。用IEEE 13节点径向分布试验馈线的一部分验证了所提出的方法。并利用三母线系统的电等效,对故障条件下的关键参数进行了解析推导。
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引用次数: 0
Optimal setting and sizing of distributed solar photovoltaic generation in an electrical distribution system 分布式太阳能光伏发电在配电系统中的最优设置和规模
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960225
K. Dhayalini, R. Mukesh
In solar photovoltaic generation (SPVG) the sizing and setting of optimal of distribution is found very difficult. In this paper the optimal sizing and setting is found to be calculated by using beta distribution function (BDF) is used for the modulation of solar irradiance. The optimization problem is found and it is solved by using dynamic harmony search algorithm. The load is found uncertain and it is utilized by a boundary power flow. By considering the uncertainty of the load the new approach is done by using the radial electrical distribution system (EDS).
在太阳能光伏发电(SPVG)中,最优分配的确定和设定是一个难点。本文利用β分布函数(BDF)对太阳辐照度进行调制,得到了最佳尺寸和设置。找到了优化问题,并采用动态和谐搜索算法求解。发现负荷是不确定的,并利用边界潮流。考虑到负荷的不确定性,采用径向配电系统(EDS)实现了新方法。
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引用次数: 1
Indian Power Sector- Need of Privatization and Current Status 印度电力部门——私有化的需要和现状
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8959971
K. Sharma, Senthil Prabu Ramalingam, S. Karthikeyan, I. Raglend
Electrical energy is the most fundamental elements of infrastructure and it is important for economic development and progress of any nation. As a result of population explosion and economic development, energy utilization has been increasing at a dramatically faster rate in India. The rapid growth of a nation’s economy places heavy demand for electric power. A large portion of the electric demand is fulfilled by fossil fuel which discharges harmful gases in the atmosphere. In order to reduce greenhouse gas emission and to develop efficient and reliable ways to harness energy, renewable sources can be viewed as one of the best possible alternatives. The main aim of the power producers should be to develop smart and sustainable energy systems for the country. This paper documents the current status and potential of renewable energy in India along with role of private power producers. This paper also reviews the major operations and contribution of private power producers in the power sector.
电能是基础设施中最基本的要素,对任何一个国家的经济发展和进步都至关重要。由于人口爆炸和经济发展,印度的能源利用一直在以惊人的速度增长。一个国家经济的快速发展对电力的需求很大。很大一部分电力需求是由向大气中排放有害气体的化石燃料来满足的。为了减少温室气体排放和开发高效可靠的能源利用方式,可再生能源可以被视为最好的替代方案之一。电力生产商的主要目标应该是为国家开发智能和可持续的能源系统。本文记录了印度可再生能源的现状和潜力,以及私营电力生产商的作用。本文还回顾了私营电力生产商在电力部门的主要业务和贡献。
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引用次数: 0
A Novel Algorithm for Top- k Community Detection In Dynamic Social Networks 动态社会网络中Top k社区检测的新算法
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960034
P. M, R. R, P. Pabitha
In dynamic informal networks change the information prevailing inside them in perspective with time. An approach to distinguish the information existed in each nodes was achieved by recognizing the subnetworks or Communities inside the network through Community-Based models. To increase the utility capacity also estimated the degree to networks that are founded. The information about the networks will be not known and consequently the nature of the topology and instability data inside a Dynamic Social Network(DSN). It maximized the cost of finding the communities from the large networks and to reduce the cost expenditure in finding the communities; a novel greedy based approach has been proposed. The K values determine the total number of communities that are to be formed. The Network-based model foresee the individuals from the networks proposed strategy will likewise distinguish the network -based model that can catch the qualities of basic opening spanners productively and decline the connection upkeep cost in the extensive scale systems. An decrease in the cost of finding the optimal communities in comparison with the existing hierarchical and Clique census community detection approaches was achieved by the Top-k greedy approach with an optimal cost percent of 42.6.
在动态的非正式网络中,信息随时间的变化而变化。通过基于社区的模型识别网络中的子网或社区,实现了对每个节点存在的信息进行区分的方法。为了提高公用事业容量,还估计了建立网络的程度。关于网络的信息将是未知的,因此拓扑的性质和动态社会网络(DSN)中的不稳定数据。使从大网络中寻找社区的成本最大化,减少寻找社区的成本支出;提出了一种新的基于贪心的算法。K值决定了将要形成的群落总数。基于网络的模型预测了所提出的网络策略中的个体,同样可以区分基于网络的模型,该模型可以有效地捕捉基本开口扳手的质量,并降低大规模系统中的连接维护成本。与现有的分层和派系普查社区检测方法相比,Top-k贪婪方法降低了寻找最优社区的成本,其最优成本为42.6 %。
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引用次数: 1
Numerical modeling and Simulation of Thermophotovoltaic Cell using COMSOL 利用COMSOL对热光伏电池进行数值模拟与仿真
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960167
S. P, S. Rm
In recent years, Thermophotovoltaics (TPV) have become a hot and essential research area due to the increase in requirement of electrical energy at global level as well as the scarcity on other fossil fuels. TPV is a technology which uses the application of photovoltaic diodes for generating electricity from thermal radiation. This process is generally achieved by using thermal emitters that are heated to a temperature greater than 800º C. In this work, we have designed a circular TPV cell using Silicon Carbide as an emitter and Gallium Antimonide as solar PV cells. The emitter is operated at a heat varying from 1000 K to 2000 K using parametric solver at a regular interval of 100 K. We have analyzed how the heat transfers with surface to surface radiation at a stationary condition. The temperature distribution and electrical power output of TPV cell is also observed. It is observed that the proposed TPV cell produces a maximum of 27000 W/m2 electrical power output at an emitter temperature of 1700 K and solar temperature of 1300 K.
近年来,由于全球对电能需求的增加以及其他化石燃料的短缺,热光伏(TPV)成为一个热点和必要的研究领域。TPV是一种利用光伏二极管利用热辐射发电的技术。这一过程通常是通过加热到800℃以上的热辐射体来实现的。在这项工作中,我们设计了一个圆形的TPV电池,使用碳化硅作为发射器,锑化镓作为太阳能光伏电池。利用参数解算器以100k的规则间隔在1000k到2000k的温度范围内工作。我们分析了在固定条件下,热是如何通过表面对表面的辐射传递的。观察了TPV电池的温度分布和输出功率。实验结果表明,在辐射温度为1700 K、太阳温度为1300 K的条件下,TPV电池的最大输出功率为27000 W/m2。
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引用次数: 1
A Solution for Stability Improvement through Compressed Air Energy Storage as Reactive Power Compensating Device under Various Grid Faults 利用压缩空气储能作为电网各种故障下无功补偿装置提高电网稳定性的解决方案
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960084
M. B. Hemanth Kumar, B. Saravanan
Grid stability can be improved by implementing various energy storage devices in the power system and among them one of the storage system is compressed air energy storage system (CAES). This CAES can be used for management of variation in the renewable energy and grid demand. The only drawback with CAES is that its cost is high compared with other storage technologies. The research is under development to operate CAES in an most efficient and economic way with maximum utilization of energy stored with least thermal losses. In this paper CAES is used for meeting the reactive power for the wind farm when it is subjected to fault at different bus locations. Here an doubly fed induction generator(DFIG) based wind turine(WT) with CAES performance shows better than static var compensator(SVC). This shows that CAES can be used as reactive power source for improving the system performance in the case of stability.
通过在电力系统中实施多种储能装置,可以提高电网的稳定性,其中一种储能装置是压缩空气储能系统(CAES)。该CAES可用于管理可再生能源和电网需求的变化。与其他存储技术相比,CAES的唯一缺点是成本高。该研究正在开发中,以最有效和最经济的方式运行CAES,最大限度地利用储存的能量,最小的热损失。本文将CAES用于满足风电场在不同母线位置发生故障时的无功功率。基于双馈感应发电机(DFIG)的风力发电机(WT)的CAES性能优于静态无功补偿器(SVC)。说明在稳定的情况下,CAES可以作为无功电源来改善系统的性能。
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引用次数: 1
Feature Extraction for Bearing Fault Diagnosis in Noisy Environment: A Study 噪声环境下轴承故障诊断的特征提取研究
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960103
Nayana Br, P. Geethanjali
Operating induction machine throughout the year is vital, thus maintenance and diagnosing within stipulated time is very essential. Else, this leads to complete shutdown of the systems and huge production losses. Thus a robust diagnosing scheme is essential for mechanical fault detection at incipient stages, as the probability of mechanical fault occurrences is high. In this work normal bearing, natural cage defective bearing and natural outer race defective bearings are considered. Prior to classification, the presence of fault is validated using spectra of current and vibration signals. This work demonstrates a simple fault diagnosing scheme using 3 different classifiers. 12 statistical time domain features are extracted from vibration and current signals. Feature plots of all conditions are investigated in detail. Experimental results showed that features slope sign changes, variance and standard deviation are performing good irrespective of the signal recorded and NB classifier performs well irrespective of the signal recorded and the feature employed.
感应电机全年运行是至关重要的,因此在规定的时间内进行维护和诊断是非常必要的。否则,这将导致系统完全关闭和巨大的生产损失。因此,由于机械故障发生的概率很高,在机械故障的早期阶段,一个鲁棒的诊断方案对于机械故障检测至关重要。在本工作中,考虑了正常轴承、自然保持架缺陷轴承和自然外圈缺陷轴承。在分类之前,使用电流和振动信号的频谱来验证故障的存在。本工作演示了一个使用3种不同分类器的简单故障诊断方案。从振动和电流信号中提取了12个统计时域特征。详细研究了各工况的特征图。实验结果表明,无论记录的信号是什么,特征的斜率符号变化、方差和标准差都表现良好,无论记录的信号和使用的特征是什么,NB分类器都表现良好。
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引用次数: 2
Performance comparison of CSMA, MACA, Generic MAC and Sensor MAC channel access protocols for ZigBee WSN with RIPv2 as Routing protocol RIPv2为路由协议的ZigBee WSN中CSMA、MACA、Generic MAC和Sensor MAC信道访问协议的性能比较
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960033
Narmada Alaparthi, Sudhakara Rao Parvataneni, Neela Venkata Sriya Kanderao, Sri Vidya Jagtap, Alekhya Donthu, Harika Korivi
Monitoring and coordinating the remote physical conditions of an environment is found difficult in many user applications. A wireless sensor network can be one of the best solutions in this application. Sensors are inter-connected together in the form of a mesh network to form Wireless Sensor Network (WSN). Transmitter and receiver are embedded in a single sensor called a "NODE" in other words called a transceiver, which is a battery operated and microcontroller enabled intelligent device. Further the nodes can also be interconnected in different topologies viz., Star, Ring, Mesh, etc.While many channel access protocols may be competent for using them in Wireless Sensor Networks, it is commonly found that IEEE 802.15.4 MAC (Medium Access Control) protocol is often used over IEEE standard 802.15.4 ZigBee protocol stack. As there are many other protocols reported in literature, it is felt necessary to revisit all the suitable protocols to find, if any, more efficient protocol for WSN exists. In this paper a study is carried out with CSMA, MACA and GENERIC MAC protocols for their suitability for WSN. The study is done by simulating these protocols in 802.15.4 ZigBee for different number of nodes from 15 to 30. The summary of the characteristics of all these protocols is presented. Qualnet 5.0.2 network simulator is employed to analyze the important characteristics like throughput, end-to- end delay, jitter, total packets received, etc., by varying the various parameters under low, medium and heavy loads.
在许多用户应用程序中,很难监控和协调环境的远程物理条件。无线传感器网络可能是此应用中的最佳解决方案之一。传感器以网状网络的形式相互连接,形成无线传感器网络(WSN)。发射器和接收器嵌入在一个称为“NODE”的传感器中,换句话说,称为收发器,这是一个电池供电和微控制器启用的智能设备。此外,节点也可以在不同的拓扑结构中互连,即星型,环形,网状等。虽然许多通道访问协议可能能够在无线传感器网络中使用它们,但通常发现IEEE 802.15.4 MAC(介质访问控制)协议通常在IEEE标准802.15.4 ZigBee协议堆栈上使用。由于文献中报道了许多其他协议,因此有必要重新审视所有合适的协议,以找到更有效的WSN协议。本文对CSMA、MACA和GENERIC MAC协议在无线传感器网络中的适用性进行了研究。本研究通过在802.15.4 ZigBee中模拟这些协议,在15到30个节点的不同数量下完成。对这些协议的特点进行了总结。使用Qualnet 5.0.2网络模拟器,通过改变低、中、重负载下的各种参数,分析吞吐量、端到端延迟、抖动、接收总包数等重要特性。
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引用次数: 6
Use of Channel State Information for Suspicious Object Detection: A Review 信道状态信息在可疑目标检测中的应用综述
Pub Date : 2019-03-01 DOI: 10.1109/i-PACT44901.2019.8960188
Kalyani Chavhan, P. Paikrao
The prolificness of wifi based applications is the result of growing requirement of wireless signals. The use of channel state information is done for various applications. This paper forthputs the feasibility of wifi channel state information for suspicious object detection. The system can be used at public places such as stadiums, schools or museums. Various other methods for suspicious object detection (such as surveillance cameras, surveillance videos) are proposed earlier but these methods cannot identify the suspicious material inside the bags without violating people’s privacy. Our method proposes an algorithm to detect the suspicious objects in the baggage without invading privacy.
基于wifi的应用程序的激增是对无线信号需求不断增长的结果。通道状态信息的使用适用于各种应用程序。本文提出了wifi通道状态信息用于可疑物体检测的可行性。该系统可用于体育场、学校、博物馆等公共场所。其他各种可疑物体检测方法(如监控摄像头、监控视频)早前被提出,但这些方法无法在不侵犯人们隐私的情况下识别出包内的可疑物品。我们的方法提出了一种算法,在不侵犯隐私的情况下检测行李中的可疑物体。
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引用次数: 1
期刊
2019 Innovations in Power and Advanced Computing Technologies (i-PACT)
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