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2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015]最新文献

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Load frequency control of a single area system: An experimental approach: Part-1 单区系统负载频率控制:实验方法:第1部分
Anoop Kumar Mohanta, Ritesh Dash, C. Behera, Priyabrata Behera
Transmission and distribution of power over the tie line depends upon the amount of load connected to it. As the entire power system is a completely non linear network so steady state analysis of the power system is a very difficult task. In order to maintain the system voltage and frequency with that of the change in the loads demand it is require to modify the system suitable controller. If the generation system is considering only one generation unit and one load area it can be treated as a one area network. So for one area network the system frequency can be controlled through the either P or PI controller. This paper tries to identifies the different types of problem occurring in the single area network with their behavior to active and reactive power system.
电力在联络线上的传输和分配取决于与之相连的负载量。由于整个电力系统是一个完全非线性的网络,因此电力系统的稳态分析是一项非常困难的任务。为了保持系统电压和频率随负载需求的变化而变化,需要对系统进行适当的控制器修改。如果发电系统只考虑一个发电机组和一个负荷区域,则可以将其视为一个单区网络。因此,对于一个局域网,系统频率可以通过P或PI控制器进行控制。本文试图识别单网中出现的不同类型的问题及其对有功和无功系统的影响。
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引用次数: 0
A case study for solarification project of different places in India 印度不同地区太阳能项目的案例研究
Ravi Kumar, N. Pal, Abishek Naithani
As the population is increasing day by day, so the energy demands are bound to increase. In recent years India has seen several blackouts. To meet the future demand of power we should start investing in renewable energy. India has great potential for solar energy which is still untapped. Solar energy is residential friendly and can be installed easily in residential areas. This paper presents the Modeling and Cost analysis of solar photovoltaic (PV) systems and the energy saved in a domestic household from its use. The study is conducted in five different places of INDIA using RETSCREEN software. The role of solar radiation on size of PV system and their economic influence of different location is analyzed for equal load demand. The parameters used for economic analysis of modeling work are Net Present value (NPV), payback period, Internal Rate of Return (IRR) etc. Different parameters were compared for different selected locations. Finally, it is found in the analysis that solar irradiation level has great influence on the PV array size, its efficiency, capital cost, IRR, payback period and levelised cost of energy, etc. Also electricity generated by the solar PV system reduces greenhouse gas (GHG) emission and makes the environment more eco friendly. The weather information was taken from the NASA website.
随着人口的日益增长,对能源的需求必然会增加。近年来,印度发生了几次停电。为了满足未来的电力需求,我们应该开始投资可再生能源。印度在太阳能方面有巨大的潜力,但尚未开发。太阳能对居民是友好的,可以很容易地安装在居民区。本文介绍了太阳能光伏(PV)系统的建模和成本分析,以及家庭使用该系统所节省的能源。这项研究使用RETSCREEN软件在印度五个不同的地方进行。在等负荷需求条件下,分析了太阳辐射对光伏系统规模的影响以及不同位置光伏系统的经济影响。用于模型经济分析的参数有净现值(NPV)、投资回收期、内部收益率(IRR)等。在不同的选择地点比较不同的参数。最后,在分析中发现,太阳辐照水平对光伏阵列的规模、效率、资金成本、内部收益率、投资回收期和能源平净成本等都有很大的影响。此外,太阳能光伏发电系统产生的电力减少了温室气体(GHG)排放,使环境更加环保。天气信息来自美国宇航局网站。
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引用次数: 1
Modernization of lignite feeder control system using microcontroller with multidrop mode 褐煤给料机控制系统的多滴式单片机现代化设计
R. Manochitra, S. Raja
Lignite handling plants are having number of conveyors and they are seen virtually. The control systems used for these conveyors are important for operating safe plant. In the existing control system, there are different modules and number of relays in control panel which makes the circuit very complex. There are four main feeder sets in each corner of a boiler. Each main feeder consists of four sub feeders and each sub-feeder consists of different modules. The different modules are Zero speed module, Chain positioned module, Coal flow/no flow module and Speed transmitter module. So, they occupy more space and needs more cables to communicate field and control panels. In this paper, a universal control panel is designed and simulated based on microcontroller. A simple cable communication interface is used between field and control panels with RS485 multi-drop mode facility.
褐煤处理厂有许多传送带,它们是虚拟的。用于这些输送机的控制系统对工厂的安全运行至关重要。在现有的控制系统中,控制面板上有不同的模块和数量的继电器,使得电路非常复杂。在锅炉的每个角落都有四个主给料装置。每个主馈线由四个子馈线组成,每个子馈线由不同的模块组成。不同的模块有零转速模块,链条定位模块,煤流/无流模块和速度变送器模块。因此,它们占用更多的空间,需要更多的电缆来通信现场和控制面板。本文设计并仿真了一种基于单片机的通用控制面板。现场和控制面板之间采用简单的电缆通信接口,具有RS485多滴模式设施。
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引用次数: 1
Coin detection and recognition using neural networks 使用神经网络的硬币检测和识别
S. Mohamed, M. Roomi, R. B. Jayanthi
Coin identification and recognition and is important to enhance the extended operation of Vending machines, Pay phone system and coin counting machines. Coin recognition is a difficult task in machine intelligence and computer vision problems because of its various rotations and widely changed patterns. Therefore, an efficient algorithm is designed to be robust and invariant to rotation, translation and scaling. The objective of this work is to find whether the object is coin or not if so denomination of the coin is found. The Fourier approximation of the coin image is used to reduce the variations on surface of coin such as light reflection effect. Then coins can be distinguished by feeding those features into a multi-layered BP neural network.
硬币识别和识别,对加强自动贩卖机、收费电话系统和数硬币机的扩展运作十分重要。硬币识别是机器智能和计算机视觉问题中的一个难点,因为它的旋转和模式变化很大。因此,设计了一种对旋转、平移和缩放具有鲁棒性和不变性的高效算法。这项工作的目的是发现是否对象是硬币或不是,如果硬币的面额被发现。利用硬币图像的傅里叶近似来减小硬币表面的光反射效应等变化。然后通过将这些特征输入多层BP神经网络来区分硬币。
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引用次数: 7
Design of an improved energy efficient clustering in M2M communication M2M通信中改进的能效集群设计
K. Deshpande, A. Rajesh
In this paper, we analyse machine to machine (M2M) communication in long term evolution for machine type communication(LTE-M) network. It provides interface for M2M devices to send data to M2M gateways or evolved Node B (eNB). Clustering is an efficient way of gathering data and energy conservation. Here, two existing clustering methods, namely, Low energy adaptive clustering hierarchy (LEACH) and energy aware multi-hop multipath hierarchy (EAMMH)are compared with improved M2M clustering process (IMCP) method. Results show that IMCP performs better than the existing techniques in terms of energy consumption, network life time and number of dead nodes. Assumption is made to use smart metering as one of measuring application in M2M communication.
本文分析了机器类型通信(LTE-M)网络中机器对机器(M2M)通信的长期演变。它为M2M设备提供接口,用于向M2M网关或演进的eNB (Node B)发送数据。聚类是一种高效的数据收集和节能方法。本文将现有的两种聚类方法,即低能量自适应聚类层次(LEACH)和能量感知多跳多径层次(EAMMH)与改进的M2M聚类过程(IMCP)方法进行了比较。结果表明,IMCP在能耗、网络寿命和死节点数方面都优于现有技术。假设智能计量作为M2M通信中的一种计量应用。
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引用次数: 6
A novel method of using symbiotic organism search algorithm in solving security-constrained economic dispatch 利用共生生物搜索算法求解安全约束下的经济调度问题
R. Rajathy, B. Taraswinee, S. Suganya
This paper presents an efficient and reliable Symbiotic Organism Search algorithm for solving Economic Load Dispatch problem. The superiority of Symbiotic Organism Search is demonstrated for 6 bus system including the transmission constraint. It has been observed that Symbiotic Organism Search method gives appreciable results for Security Constrained Economic Dispatch problem.
针对经济负荷调度问题,提出了一种高效可靠的共生生物搜索算法。在包含传输约束的6总线系统中,证明了共生生物搜索的优越性。研究发现,对于安全约束下的经济调度问题,共生生物搜索方法具有较好的求解效果。
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引用次数: 10
Understanding insider attack problem and scope in cloud 了解云中的内部攻击问题和范围
T. Gunasekhar, K. Rao, M. Basu
The malicious insider can be an employees, user and/or third party business partner. The insiders can have legitimate access to their organization data centers. In organizations, the security related aspects are based on insider's behaviors, the malicious insiders may theft sensitive data and no protection mechanisms are addressed till now to completely defend against the attacks. Such that organizational data could be so vulnerable from insider threat attacks. The malicious insiders of an organization can perform stealing on sensitive data at cloud storage as well as at organizational level. The insiders can misuse their credentials in order to perform malicious tasks on sensitive information as they agreed with the competitors of that organization. By doing this, the insiders may get financial benefits from the competitors. The damages of insider threat are: IT sabotages, theft of confidential information, trade secrets and Intellectual properties (IP). It is very important for the nation to start upgrading it's IT infrastructure and keep up with the latest security guidelines and practices.
恶意的内部人员可以是员工、用户和/或第三方业务合作伙伴。内部人员可以合法访问其组织的数据中心。在组织中,安全相关方面是基于内部人员的行为,恶意的内部人员可能会窃取敏感数据,目前还没有解决保护机制来完全防御攻击。这样,组织数据就很容易受到内部威胁攻击。组织内部的恶意人员可以窃取云存储和组织级别的敏感数据。内部人员可以滥用他们的凭证,以便在敏感信息上执行恶意任务,因为他们与该组织的竞争对手达成了协议。通过这样做,内部人士可能会从竞争对手那里获得经济利益。内部威胁造成的损害包括:IT破坏、机密信息、商业秘密和知识产权的盗窃。对国家来说,开始升级It基础设施,跟上最新的安全指导方针和实践是非常重要的。
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引用次数: 18
New hybrid DRA for upper S-band and lower C-band applications 新型混合DRA用于上s波段和下c波段应用
S. K. K. Dash, D. Behera, S. Sahu
A new hybrid T-Shaped monopole dielectric resonator antenna using conical cum hemispherical shaped dielectric ring resonator has been investigated. The newly introduced structure provides much better multipurpose application performances as compared to the published papers available in open literature. S11<; -10dB ranging 3.78-4.38 GHz has been experimented by simulation, showing 1.15:1 ratio bandwidth, i.e., greater than 14.7% impedance bandwidth at the centre of the band with 2.34 dBi gain. Such useful characteristics could be suitably utilized in designing monopole antennas for narrow band applications.
研究了一种采用锥形和半球形介电环谐振腔的新型混合t形单极子介电谐振器天线。与公开文献中发表的论文相比,新引入的结构提供了更好的多用途应用性能。S11 <;-10dB范围3.78-4.38 GHz通过仿真实验,带宽比为1.15:1,即带宽中心阻抗带宽大于14.7%,增益为2.34 dBi。这些有用的特性可以适当地用于设计窄带应用的单极天线。
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引用次数: 1
Soft switched flyback DC-DC converter for wide input voltage and full load range applications 软开关反激DC-DC变换器宽输入电压和全负载范围的应用
Rincy Lonappan, Della David
Soft switching techniques have a very important role in reducing the size, cost and also in improving average efficiency and power density of dc-dc converter. This paper introduces a soft switched flyback dc-dc converter with zero-voltage switching during both turn on and off. The soft switching is obtained over wide load and line ranges by placing two small ac capacitors in both side of flyback transformer. The triggering for switches is given by measuring the magnetizing voltage and current. This method provides zero-voltage switching during turn on and turns off independent of line voltage and load resistance. The new converter has four modes of operation which is described in this paper. The overall size of the system is reduced by increasing the switching frequency. In order to provide constant output voltage, current reference control is employed. The simulation results under different load and line conditions are provided to verify the performance of the new converter.
软开关技术在减小dc-dc变换器的尺寸、降低成本、提高平均效率和功率密度方面具有非常重要的作用。本文介绍了一种软开关反激式dc-dc变换器,其通断均为零电压。通过在反激变压器的两侧放置两个小的交流电容器,可以在宽负载和线路范围内实现软开关。开关的触发是通过测量磁化电压和电流来实现的。这种方法在接通和关断过程中提供零电压开关,不受线路电压和负载电阻的影响。本文介绍了新型变换器的四种工作模式。增加开关频率可以减小系统的总体尺寸。为了提供恒定的输出电压,采用了电流参考控制。给出了不同负载和线路条件下的仿真结果,验证了该变换器的性能。
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引用次数: 2
An application of image change detection-urbanization 图像变化检测的应用——城市化
A. Reno, D. David
The goal of this paper is to develop an efficient method for finding changes in land areas that undergone changes over a period of time. Land monitoring and observation is such an area that is both important and time consuming task of remote sensing applications. Land changes often occur due to the seasonal changes of land covers, deforestation, natural disasters and many other factors. Existing methodologies do the change detection procedure only between two images taken at same area at two different time instances. A method is proposed for finding changes between images of same set occurred at various time intervals may be between years or various dates. The image is allowed for pre-processing using multiple steps to obtain a clear and an efficient pre-processed image. The spatial domain Image registration methods say transformations are supported in the proposed method. Unsharp Filters are used to remove the noise and to highlight the low intensity regions. Selections of Control Points are included in the Pre-processing step itself to choose a particular region from those input images. The histogram of the input image is used for selection of threshold and the objects in the image are detected. The objects in the detected image are compared with the base image objects to obtain a difference image. Image segmentation is done on edges by Canny edge detector as this is known for its popularity. The selected regions are fed up into neural network tool where Classification training and validation of the data is performed and mean square error is considered as a performance measure. The performance parameters like true positive, false positive, true negative and false negative are obtained by comparing the change detected image with the ground truth image. Graphical representation of training state such as gradient and validation check is also performed. ROC is plotted against false positive and true positive values. The experimental results determine the efficiency of the proposed method by testing it with different data sets.
本文的目标是开发一种有效的方法来发现在一段时间内发生变化的土地面积的变化。土地监测与观测是遥感应用中一个既重要又耗时的领域。土地变化往往是由于土地覆盖的季节变化、森林砍伐、自然灾害等多种因素造成的。现有的方法只在同一区域在两个不同的时间点拍摄的两幅图像之间进行变化检测。提出了一种寻找同一组图像在不同时间间隔(可能是在年份之间或不同日期之间)之间变化的方法。允许使用多个步骤对图像进行预处理,以获得清晰且有效的预处理图像。该方法支持空间域图像配准方法和变换。非锐化滤波器用于去除噪声并突出显示低强度区域。控制点的选择包括在预处理步骤中,从这些输入图像中选择一个特定的区域。利用输入图像的直方图选择阈值,检测图像中的目标。将检测图像中的目标与基础图像中的目标进行比较,得到差分图像。图像分割是在边缘上完成的Canny边缘检测器,因为这是众所周知的流行。选择的区域被输入到神经网络工具中,在神经网络工具中对数据进行分类训练和验证,并将均方误差作为性能度量。通过将检测到的变化图像与地面真值图像进行比较,得到真阳性、假阳性、真阴性、假阴性等性能参数。图形表示训练状态,如梯度和验证检查也执行。ROC是根据假阳性和真阳性值绘制的。通过对不同数据集的测试,验证了该方法的有效性。
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引用次数: 5
期刊
2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015]
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