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2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)最新文献

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Co-ordination of spark gap protection with MOV in EHV transmission line with FSC 超高压输电线路中MOV火花隙保护与FSC的配合
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009077
Piyush M. Khadke, N. Patne, G. Shinde
This paper highlights a real time practical case study of 40% Fixed Series Compensation (FSC) installed at 1200/765/400/220 kV Wardha Substation, Power Grid Corporation of India Ltd., WR - I (Western Region - I), India under Western Region Strengthening Scheme (WRSS). The novel finding in this research work is the operation of Spark gap in co-ordination with Metal Oxide Varistor (MOV) during various internal fault conditions, according to the threshold energy which contradicts the assumptions made in some of the previous research works. For increasing the power capacity and meeting the rising power demands, it is implemented on 400 kV double circuit Raipur - Wardha Line (375 km). This paper focuses on the effects of FSC on the specified line studied by comparing simulated results with real time data. It also dwells into fault analysis aspects of the specified line with FSC.
本文重点介绍了在印度西部地区加强计划(WRSS)下,印度电网公司WR - I(西部地区- I) 1200/765/400/220千伏瓦尔达变电站安装40%固定串联补偿(FSC)的实时实际案例研究。本研究的新发现是在各种内部故障条件下,火花间隙与金属氧化物压敏电阻(MOV)根据阈值能量协同工作,这与以往一些研究工作的假设相矛盾。为了增加电力容量,满足日益增长的电力需求,在400千伏双回路赖布尔-瓦尔达线(375公里)上实施。本文通过仿真结果与实时数据的对比,重点研究了FSC对指定线路的影响。本文还详细介绍了用FSC对指定线路进行故障分析的方法。
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引用次数: 1
Image hashing by CCQ-CSLBP CCQ-CSLBP图像哈希
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009091
V. Patil, T. Sarode
Recent trends and also statistics show that the hashing concept has been gaining importance because its application lies in the area of authentication, retrieval and recognition. The proposed hashing method CCQ-CSLBP (Compressed CSLBP with Correlation Coefficient) for authentication utilized correlation coefficient as a weight factor in CSLBP. CSLBP is a texture operator, whose performance is better than LBP, in terms of rotation invariance, differentiation power and less number of histogram bin. In CSLBP, histogram of each sub block is represented by 16 bin. Reduction in number of histogram bin is achieved by the flipped difference concept. Proposed method takes the advantage of correlation coefficient as a boosting factor during histogram construction, to increase the discrimination power of compressed CSLBP. With the use of correlation coefficient, results of CSLBP improved, in terms TPR and FPR. CCQ-CSLBP is evaluated, based on normalized hamming distance and ROC characteristics.
最近的趋势和统计数据表明,哈希概念已经变得越来越重要,因为它的应用是在认证、检索和识别领域。提出的认证哈希方法CCQ-CSLBP (Compressed CSLBP with Correlation Coefficient)利用相关系数作为CSLBP中的权重因子。CSLBP是一种纹理算子,在旋转不变性、微分幂和直方图bin数量较少等方面都优于LBP。在CSLBP中,每个子块的直方图用16个bin表示。通过翻转差分概念实现了直方图bin数量的减少。该方法在直方图构建过程中利用相关系数作为增强因子,提高压缩CSLBP的识别能力。随着相关系数的使用,CSLBP在TPR和FPR方面的结果有所改善。CCQ-CSLBP基于归一化汉明距离和ROC特征进行评估。
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引用次数: 6
Recognition of an individual using the unique features of human face 利用人脸的独特特征来识别个人
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009087
Abdul Matin, F. Mahmud, M. T. B. Shawkat
Face recognition has been gaining popularity for long time in various fields of human computer interaction. Moreover face recognition technique is widely used for automatic biometric security control, document verification, criminal investigation etc. In this paper we propose a new approach of using PCA based face recognition method for human verification. PCA based method seems to be interested due to its simplicity and better accuracy. In our proposed method two stages of authentication are performed for recognizing a single candidate individual. At first stage the candidate face is matched with all stored faces and only few best matched samples are isolated to use as second stage training samples. Here in both stages PCA is used for extracting significant features of face. Our proposed approach showed 1.5% better accuracy for ORL face database and 0.52% better accuracy for Face94 database.
长期以来,人脸识别在人机交互的各个领域都得到了广泛的应用。此外,人脸识别技术还广泛应用于自动生物识别安全控制、证件验证、刑事侦查等领域。本文提出了一种基于PCA的人脸识别方法进行人体验证的新方法。基于PCA的方法由于其简单和更好的准确性而引起了人们的兴趣。在我们提出的方法中,为了识别单个候选个体,执行了两个阶段的身份验证。在第一阶段,候选人脸与所有存储的人脸进行匹配,并筛选出匹配最好的样本作为第二阶段的训练样本。在这两个阶段中,PCA都用于提取人脸的重要特征。该方法对ORL人脸数据库的准确率提高1.5%,对Face94人脸数据库的准确率提高0.52%。
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引用次数: 9
Power line data based grid identification using signal processing 基于电力线数据的电网识别信号处理
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009106
Shoilie Chakma, D. Chowdhury, M. Sarkar, Mohammad Zakaria Haider, S. Fattah
Power recordings obtained from different grids have different patterns which are not clearly predictable. These power line data can be used to identify the region of recordings by detecting their pattern. Normally The Electric Network Frequency(ENF) of power distribution network is used to estimate the location of recordings. Existing techniques estimate ENF around the base frequency of 50/60Hz. In this paper a technique is proposed to classify the grids by exploiting the ENF at different harmonics of nominal frequency. This method does not rely on power references to differentiate amongst various power grids. It applies feature extraction techniques of clean power signal which can be measured directly from the power mains through electrical outlet using a step-down transformer and voltage divider.
从不同的电网中获得的电力记录具有不同的模式,无法清楚地预测。这些电力线数据可以通过检测它们的模式来识别记录的区域。通常使用配电网的电网频率(ENF)来估计记录的位置。现有的技术估计ENF在基频50/60Hz左右。本文提出了一种利用标称频率不同次谐波的ENF对电网进行分类的方法。该方法不依赖于功率参考来区分不同的电网。它应用了清洁电力信号的特征提取技术,该信号可以通过电源插座使用降压变压器和分压器直接从电源测量。
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引用次数: 3
Harmonic mitigation in AC motor using multi-pulse rectifier 多脉冲整流器在交流电机谐波抑制中的应用
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009073
Anand Panchbhai, Nikunj Prajapati, S. Parmar
Now-a-days, sustainability of power quality is a major concern. Speed control of an AC motor is required for several industrial applications, but is often difficult to achieve as the AC motor runs at fixed speed. Hence, power electronic devices are introduced in the system. Due to the development in power electronic devices with improved dependability and cheaper cost, results in the growth of modern variable frequency drive (VFD) which can control the speed of an induction motor by adjusting the frequency of the machine [8]. They produce harmonic components and distort the supply mains, which in turn adversely affect the power quality. To outlive the difficulty, a technique named multi-pulse rectifier is developed. The main objective of this work is to reduce the impact of harmonic distortion using variable frequency drives (VFDs). Modeling, simulation and performance analysis of VFD is done based on Total harmonic distortion (THD) [8]. The proposed topology deals with the THD comparison for 6, 12 and 24 pulses. All the simulations are carried out in MATLAB/Simulink.
如今,电力质量的可持续性是一个主要问题。一些工业应用需要交流电机的速度控制,但由于交流电机以固定速度运行,通常难以实现。因此,在系统中引入了电力电子器件。由于电力电子器件的发展,可靠性提高,成本降低,导致现代变频器(VFD)的发展,它可以通过调节机器的频率来控制感应电动机的速度[8]。它们产生谐波分量并扭曲电源,进而对电能质量产生不利影响。为了克服这一困难,开发了一种多脉冲整流技术。这项工作的主要目的是利用变频驱动器(vfd)减少谐波失真的影响。基于总谐波失真(Total harmonic distortion, THD)对变频器进行建模、仿真和性能分析[8]。所提出的拓扑处理6、12和24脉冲的THD比较。所有仿真均在MATLAB/Simulink中进行。
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引用次数: 5
Mobile to mobile communication architecture on Wi-Fi grid 基于Wi-Fi网格的移动对移动通信架构
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009094
N. Patel, R. Bhatt
With widespread availability of mobile communication devices and public WiFi grids, peer to peer services and applications have become feasible and attractive. Educational campuses have strong intranet infrastructure which provides near complete WiFi coverage. While this is adequate for client-server applications and browsing etc, it doesn't support p2p applications. We have proposed a hybrid architecture for p2p services where the infrastructure network is used for providing directory services and moving data seamlessly across WiFi access-points. It does this by implementing Mobile IP6 on the intranet along with maintaining real-time directories of the mobile nodes. Mobile IP is the protocol in which the mobile node can stay connected with same network connections transparently irrespective of current point of attachment to IP network. While a number of p2p protocols and services exist, robust realtime application implementations have been difficult due to complexity in implementing directory and other network services. Here we have designed a p2p event scheduler which uses the real time directories and have presented our findings.
随着移动通信设备和公共WiFi网络的广泛使用,点对点服务和应用变得可行和有吸引力。教育校园有强大的内部网基础设施,提供几乎完全的WiFi覆盖。虽然这对于客户机-服务器应用程序和浏览等已经足够了,但它不支持p2p应用程序。我们为p2p服务提出了一种混合架构,其中基础设施网络用于提供目录服务和跨WiFi接入点无缝移动数据。它通过在内部网上实现移动IP6以及维护移动节点的实时目录来实现这一点。移动IP是一种协议,在这种协议中,移动节点可以透明地与相同的网络连接保持连接,而不考虑当前连接到IP网络的点。虽然存在许多p2p协议和服务,但由于实现目录和其他网络服务的复杂性,健壮的实时应用程序实现一直很困难。在这里,我们设计了一个使用实时目录的p2p事件调度程序,并展示了我们的发现。
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引用次数: 0
Corona studies on polymeric insulator samples used in high voltage transmission 高压输电用聚合物绝缘子样品的电晕研究
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009109
S. B, M. Marathe
The use of polymeric insulators for overhead transmission and distribution has increased over ceramic insulators in recent years. However, polymer insulators are subjected to degradation due to corona among many other problems. This is further enhanced by the presence of moisture in air as also by acid rain. In this work degradation of polymer insulators is studied by subjecting to corona under conditions of normal air, normal fog and acidic fog separately. The extent of degradation is determined by hydrophobicity, SEM (Scanning Electron Microscope) images and tensile strength measurements. Corona degradation in presence of fog is found to be more severe than that in the presence of normal air.
近年来,聚合物绝缘子在架空输电和配电中的使用比陶瓷绝缘子有所增加。然而,聚合物绝缘体在许多其他问题中受到电晕的降解。空气中的水分和酸雨的存在进一步加强了这一点。本文分别在正常空气、正常雾和酸性雾条件下,对聚合物绝缘子的电晕降解进行了研究。降解程度由疏水性、扫描电子显微镜(SEM)图像和拉伸强度测量来确定。发现雾存在时的电晕降解比正常空气存在时的电晕降解更严重。
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引用次数: 0
Fuzzy approach to predict mobility and energy to prolong the life of Wireless sensor network 模糊方法预测无线传感器网络的移动和能量以延长其寿命
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009076
Dr. Pallavi Katkar, V. Ghorpade
Mobile Wireless sensor network consist of number of sensor nodes and each node works on limited battery life. Several factors like routing protocol, nodes mobility and energy can affect the performance of a WSN. This paper presents fuzzy rule based simulation system for WSN to predict the node's mobility and energy. Mobility prediction provides stable path for network and energy prediction increases lifetime of the network. Network simulator NS3 is used for simulation result.
移动无线传感器网络由许多传感器节点组成,每个节点在有限的电池寿命下工作。路由协议、节点移动性和能量等因素会影响无线传感器网络的性能。本文提出了一种基于模糊规则的无线传感器网络节点移动性和能量预测仿真系统。移动性预测为网络提供了稳定的路径,能量预测提高了网络的寿命。仿真结果采用网络模拟器NS3。
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引用次数: 4
Automatic ulcer detection scheme using gray scale histogram from wireless capsule endoscopy 无线胶囊内窥镜灰度直方图自动溃疡检测方案
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009127
A. Kundu, A. Bhattacharjee, S. Fattah, C. Shahnaz
Wireless capsule endoscopy (WCE) is one of the most recent and effective video technologies to diagnose gastrointestinal (GI) diseases, such as ulcer in GI tract. Because of long duration of WCE videos, it is a burden for the physicians to analyze large number of image frames. This time consuming process often leads to human error. Hence, an automatic scheme for ulcer image detection in WCE video has great demand. In this paper, an automatic scheme based on image histogram is proposed to detect ulcer frames in WCE video. In order to compute the histograms from pixel values, instead of using conventional RGB color plane, gray scale is used, which offers the scope of utilizing brightness of color. Based on extensive experimentation, it is found that histogram patterns, obtained from ulcer and non-ulcer images in gray scale, exhibit significant differences. Cumulative pixel number of the pixel values in gray scale over an optimum threshold is chosen as feature through histogram analysis. Moreover, this 1-D feature offers computational advantage and ease of implementation. For the purpose of classification, the support vector machine (SVM) supervised classifier is used. Also, performance of the proposed method obtained from several other classifiers is compared. The performance of the proposed method is tested on several WCE images taken from publicly available WCE video database and it is found that, the proposed method offers superior classification performance, in comparison to that obtained by some existing methods, in terms of accuracy, specificity, and sensitivity.
无线胶囊内窥镜(WCE)是一种最新的、有效的诊断胃肠道疾病的视频技术,如胃肠道溃疡。由于WCE视频的时长较长,分析大量的图像帧对医生来说是一种负担。这个耗时的过程经常导致人为错误。因此,对WCE视频中溃疡图像的自动检测方案提出了很高的要求。本文提出了一种基于图像直方图的溃疡帧自动检测方案。为了从像素值计算直方图,使用灰度代替传统的RGB颜色平面,提供了利用颜色亮度的范围。通过大量的实验,我们发现溃疡和非溃疡图像的灰度直方图模式存在显著差异。通过直方图分析,选择灰度像素值超过最佳阈值的累积像素数作为特征。此外,这种1-D特性提供了计算优势和易于实现。为了进行分类,使用支持向量机(SVM)监督分类器。此外,还比较了其他几种分类器的性能。在公开的WCE视频数据库中对所提出方法的性能进行了测试,结果表明,与现有的一些方法相比,所提出的方法在准确率、特异性和灵敏度方面都具有更好的分类性能。
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引用次数: 3
Power system transient stability with SMES controlled by Artificial Intelligent Techniques 人工智能控制中小企业电力系统暂态稳定
Pub Date : 2016-12-01 DOI: 10.1109/WIECON-ECE.2016.8009097
Poulomi Mukherjee, V. V. Rao
This paper assesses various approaches for transient stability improvement in power system using Superconducting Magnetic Energy Storage (SMES) with modern controllers such as Artificial Intelligent Techniques (AIT) and robust controllers. A comparative study has been done between these controllers and their advantages/ disadvantages are also discussed.
本文评估了采用人工智能技术和鲁棒控制器等现代控制器改善超导磁储能系统暂态稳定性的各种方法。对这些控制器进行了比较研究,并讨论了它们的优缺点。
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引用次数: 6
期刊
2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)
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