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2019 Women Institute of Technology Conference on Electrical and Computer Engineering (WITCON ECE)最新文献

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Advanced Portable ECG Simulator: Product Development & Validation 先进的便携式心电模拟器:产品开发和验证
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092906
Abhranila Das, C. R. Chaudhuri, Indranil Das
The instrument developed by the authors is a unique system that can be used to calibrate an ECG machine. Also, it can be used for research and academic purposes, to study different arrhythmia patterns that the human heart can generate, in other words, it’s a modifiable human heart. The innovativeness of the system lies in the fact, that this system generates signals at 9 different channels (i.e. 10 electrodes of ECG machine) in parallel from actual data taken from patients. Unlike conventional ECG simulators, which generates a single pattern (waveform) and feed multipliers of that into 10 different channels. The developed instrument also replicates the human heart by changing delay time between each QRS complex to change pulse rate, a feature which is also absent in conventional ECG simulators. The developed system is tested and validated with an established and certified ECG machine at Indian Institute of Medical Technology (IIMT), Kolkata.
该仪器是一种独特的系统,可用于校准心电图机。此外,它还可以用于研究和学术目的,研究人类心脏可能产生的不同心律失常模式,换句话说,它是一个可修改的人类心脏。该系统的创新之处在于,该系统从患者的实际数据中并行产生9个不同通道(即心电机的10个电极)的信号。不像传统的ECG模拟器,它产生一个单一的模式(波形),并将其送入10个不同的通道。开发的仪器还通过改变每个QRS复合体之间的延迟时间来改变脉搏率来复制人类心脏,这也是传统ECG模拟器所缺乏的功能。开发的系统在加尔各答印度医学技术研究所(IIMT)的一台已建立和认证的心电图机上进行了测试和验证。
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引用次数: 4
Design of Optical Integrated Circuit dedicated to XOR/XNOR Gates XOR/XNOR门专用光集成电路的设计
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092905
V. Srivastava, Shashank Chauhan, Simran Aneja, A. Pal, Sandeep Sharma
Optical logic circuits are making their position stronger and stronger with the development in the optical integrated circuits. Conventional digital logic gate integrated circuits have been very useful components in the field of electronics. Two input XOR and XNOR digital logic gates are available as two separate integrated circuits (IC) 7486 and 74266 respectively. Here, an optical integrated circuit (OIC) is presented as a single unit that can cater to the job of the XOR as well as XNOR logic functions. The single OIC contains four XOR gates that are designed using the electro-optical unit – Mach-Zehnder Interferometer.
随着光集成电路的发展,光逻辑电路的地位越来越强。传统的数字逻辑门集成电路已经成为电子领域中非常有用的元件。两个输入XOR和XNOR数字逻辑门分别作为两个单独的集成电路(IC) 7486和74266。在这里,一个光学集成电路(OIC)被呈现为一个单一的单元,可以满足异或和异或逻辑功能的工作。单个OIC包含四个异或门,这些门是使用光电单元-马赫-曾德尔干涉仪设计的。
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引用次数: 0
A Dipole Antenna Design Based on Semicylindrical Shaped Substrate For Sub-THz Frequencies 基于半圆柱形衬底的亚太赫兹频率偶极子天线设计
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092892
P. Loktongbam, D. Pal, C. Koley, Ayan Bandopadhyaya
A novel dipole antenna working at sub-THz frequency is reported. This antenna uses silicon as substrate. Planar dipole is printed on top of the silicon substrate. To minimize the surface waves array of metallic vias are implanted in the substrate and the lower portion of the substrate is cut into a semi-cylindrical shape. Using these two techniques the proposed antenna structure achieved a simulated gain of 7.05 dBi with a radiation efficiency of 93.83%.
报道了一种工作在次太赫兹频率下的新型偶极子天线。这种天线用硅作衬底。平面偶极子被印在硅衬底上。为了使表面波阵列最小化,在基板中植入金属通孔阵列,并将基板的下部切割成半圆柱形。采用这两种技术,天线结构的模拟增益为7.05 dBi,辐射效率为93.83%。
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引用次数: 0
Experimental Analysis of Power Quality of Semi Controlled Rectifier System 半可控整流系统电能质量的实验分析
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092923
Mahashree Tamta, Rituraj, M. Chaturvedi
The paper consists of semi-controlled rectifier circuits having thyristors as controlled switches. The gate pulse provided to these switches is of 15V (DC rectangular signal) at various firing angles. The rectifier circuit is on R load and it was noticed that even at R load the AC supply is supplying Q power towards the load side. Since R load doesn’t demand Q power, the Q power is demanded by the controlled switches, at various firing angle. The Q power is directly proportional to the Sine of actual power factor angle. Aspect surmised from this paper is helpful for industries having systems working on controlled rectifiers.
本文由半控制整流电路组成,以晶闸管作为控制开关。提供给这些开关的栅极脉冲在各种发射角度为15V(直流矩形信号)。整流电路在R负载上,并且注意到,即使在R负载下,交流电源也向负载侧提供Q功率。由于R负载不需要Q功率,所以在不同发射角度下,被控开关需要Q功率。Q功率与实际功率因数角的正弦成正比。本文所推测的方面对有控制整流器系统的工业有帮助。
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引用次数: 1
Design and Simulation of Look Ahead Carry Adder for Optical Computing 光学计算超前进位加法器的设计与仿真
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092941
A. Pal, V. Srivastava, A. Pratap, Sandeep Sharma, Simran Aneja
For High-speed processing and optical computing, look ahead carry adder is played a very important role. In this work look ahead carry adder based on electro-optic principle is proposed. Mach-Zehnder interferometer is used as an optical switching device. The performance parameters extinction ratio, contrast ratio, amplitude modulation, and insertion loss for the proposed device have been computed and obtained as 17.980dB, 16.450dB, 1.391dB, 0.022dB respectively.
对于高速处理和光计算,前瞻进位加法器起着非常重要的作用。本文提出了一种基于电光原理的超前进位加法器。马赫-曾德尔干涉仪是一种光开关器件。计算得到该器件的消光比、对比度、调幅和插入损耗等性能参数分别为17.980dB、16.450dB、1.391dB、0.022dB。
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引用次数: 0
Torque Density Improvement in Transverse Flux Machine using Disc 利用圆盘提高横向磁通机的转矩密度
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092919
Balaganesh Boomiraja, R. Kanagaraj
Transverse flux machines are usually designed with either cylindrical rotor or disc rotor structure. In this paper, a disc rotor topology with single layer of permanent magnets per phase is proposed to improve the torque density. Unlike conventional transverse flux machine, the stator construction is simplified by joining c-cores of all phase stacks together in the proposed design. Analytical equations are derived for calculating the electromagnetic torque, magnetizing inductance, and leakage inductance. The disc rotor transverse flux machine is compared with an equivalent cylindrical rotor transverse flux machine using finite element analysis simulation. It is found that the transverse flux machine with disc rotor has higher torque density than that of cylindrical rotor topology.
横向磁通机通常采用圆柱转子或圆盘转子结构设计。为了提高转矩密度,本文提出了一种每相单层永磁体的圆盘转子拓扑结构。与传统的横向磁通机不同,该设计简化了定子结构,将所有相堆的c铁芯连接在一起。推导了计算电磁转矩、磁化电感和漏感的解析方程。对圆盘转子横向磁通机与等效圆柱转子横向磁通机进行了有限元仿真分析。研究发现,圆盘转子的横向磁通机比圆柱转子拓扑具有更高的转矩密度。
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引用次数: 0
Profit Maximization Bidding Strategy for a GENCO using Whale Optimization Algorithm 基于鲸鱼优化算法的发电公司利润最大化竞价策略
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092917
P. Jain, Akash Saxena
In a deregulated environment of electricity mar- ket,all participants of this market have intentions to increase their profit as much as possible in absentia of their competitor’s bid prices. These optimal Bidding strategies are first obtained through some conventional methods but In a recent trend of meta-heuristic approaches,this stochastic optimization problem solved through different meta-heuristic approaches. Due to the popularity of stochastic optimization techniques. deterministic approaches are obsolete due to their inefficiency of solving this bidding problem. In the same line of order, This paper presents the application of recent meta heuristic approach namely, Whale Optimization Algorithm (WOA) to solve strategic bidding problem of a test system having 6 competitors and MCP and profit is obtained after optimization routine. The results confirms the supremacy of WOA over other meta-heuristic approaches.
在一个放松管制的电力市场环境中,在没有竞争对手出价的情况下,市场的所有参与者都有尽可能增加利润的意图。这些最优投标策略首先是通过一些传统的方法得到的,但在最近的元启发式方法的趋势中,这种随机优化问题通过不同的元启发式方法来解决。由于随机优化技术的普及。确定性方法由于在解决投标问题时效率低下而过时。在相同的顺序下,本文提出了应用最新的元启发式方法鲸鱼优化算法(Whale Optimization Algorithm, WOA)来解决具有6个竞争者和MCP的测试系统的策略投标问题,并在优化程序后获得利润。结果证实了WOA优于其他元启发式方法。
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引用次数: 1
Optimum Tap Position of 400 Kv Transformer in Rajasthan Power System 拉贾斯坦邦电力系统400kv变压器的最佳分接位置
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092891
Parul Mishra, M. Sharma, Tushar Agarwal, Bhavesh Vyas
This paper presents a case study to control high voltage in power systembychanging tap position of 400/220 kV transformers. Rajasthan power system having four765 kV GSS, twenty-seven 400 kV GSS, One twenty two 220 kV GSS and four fifty two 132 kV GSS is selected to carry out simulation based case study in MiPower software. Simulation model consists of 943 buses including 85 generator buses, 1142 transmission lines and 201 transformers. The continuous grid operations without operational studies and supervision may lead to create problems in power network. Similar problem is raised up in Rajasthan power network the taps of 400/220 kV transformers of 400 kV grid substation is lower than nominal while at some it is higher than nominal. Due to lack of observation thirteen numbers of 400 kV grid sub stations are observed to use higher tap ratios than nominal which results in higher network voltage at 220 kV level. Even the operators reversing the situation by keeping system shunt capacitors off to reduce the high voltage condition. Test network loading is about10500 MW. Case studies are carried out to observe the effect of reduction in transformer tap position of 400/220 kV, over the thirteen 400 kV grid substations. The impact on voltage profile of busses, system losses, financial analysis, loadings of system elements are presented at last.
本文介绍了通过改变400/220千伏变压器分接位置来控制电力系统高压的实例。选取拉贾斯坦邦4台765 kV GSS、27台400 kV GSS、122台220 kV GSS和452台132 kV GSS的电力系统,在MiPower软件中进行了基于仿真的案例研究。仿真模型由943条母线组成,其中发电母线85条,输电线路1142条,变压器201台。电网在没有运行研究和监督的情况下连续运行,可能会给电网带来各种问题。拉贾斯坦邦电网也出现了类似的问题,400千伏电网变电站400/220千伏变压器的抽头低于标称,有的高于标称。由于缺乏观察,观察到13个400千伏电网变电站使用比标称更高的分接比,这导致220千伏水平的网络电压更高。甚至操作人员也通过关闭系统并联电容器来扭转局面,以减少高压情况。测试网络负载约为10500mw。通过对13个400千伏电网变电站400/220千伏变压器分接位置降低的效果进行了实例研究。最后介绍了对母线电压分布、系统损耗、财务分析、系统元件负载的影响。
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引用次数: 1
Bad Data Processing in Electrical Power System using Binary Particle Swarm Optimization 基于二元粒子群算法的电力系统不良数据处理
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092907
Amit Kumar, Sachin Gaur
As the measurements received from RTUs to the Control Center are transmitted via a transmission medium e.g. telephone, fibre optics, wireless medium, it is not possible that the data transmitted is 100% error free always. Other reasons for receiving bad measurements at control centers may be due to wrong reading of the meter. There can be a number of reasons for measurement’s value to be recorded as wrong, e.g. outage of meter, drift in meter and bias in the meter.Therefore the measurements received may be erroneous sometimes, due to which the state estimation results may be misleading, and consequently can cause problem in monitoring and control of power system. Thus it is necessary to remove bad data from the measurement set or establish some robust state estimation techniques which can remove the effects of bad data on the estimated states.In this paper the problem of multiple bad measurements detection and identification is defined as a binary variables optimization problem and it’s solutions are obtained by using Binary Particle Swarm Optimization (BPSO). It is observed that this method can be used to identify multiple interacting erroneous measurements.
由于从rtu接收到控制中心的测量数据是通过电话、光纤、无线介质等传输介质传输的,因此传输的数据不可能总是100%无误差。在控制中心收到错误测量结果的其他原因可能是由于仪表读数错误。测量值被记录为错误的原因可能有很多,例如仪表故障、仪表漂移和仪表偏差。因此,接收到的测量值有时会出现误差,从而使状态估计结果具有误导性,从而给电力系统的监测和控制带来问题。因此,有必要从测量集中去除不良数据或建立一些鲁棒状态估计技术,以消除不良数据对估计状态的影响。本文将多个不良测量的检测与识别问题定义为一个二元变量优化问题,并利用二元粒子群算法求解该问题。结果表明,该方法可用于识别多个相互作用的误差测量。
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引用次数: 0
Performance Improvement in Handwritten Devanagari Character Classification 手写体德文汉字分类的性能改进
Pub Date : 2019-11-01 DOI: 10.1109/WITCONECE48374.2019.9092916
Shivansh Gupta, R. Mohapatra
The optical character recognition models have the capability to recognize the characters in real-time. Extensive research work in the field of optical character recognition has led to the development of robust recognition mechanisms for various languages. The concepts of Artificial Intelligence and Deep learning have played a significant role in technological advancements in this field. But there are still some languages that don't have efficient Optical Character Recognition (OCR) systems but have vast ancient literature in the form of scriptures and manuscripts which are still relevant in the present. In recent years, the conventional Convolutional Neural Network (CNN) has performed distinctly in image processing and pattern recognition applications. But the pooling operation in CNN ignores the important spatial information, which proves to be an essential attribute in many cases. The proposed Capsule Network extracts spatial information and improves the capabilities of traditional CNN. It uses capsules to describe features in multiple dimensions and dynamic routing to increase the performance of the network.
光学字符识别模型具有实时识别字符的能力。在光学字符识别领域的广泛研究工作已经导致了各种语言的鲁棒识别机制的发展。人工智能和深度学习的概念在该领域的技术进步中发挥了重要作用。但仍有一些语言没有有效的光学字符识别(OCR)系统,但有大量的古代文献以经文和手稿的形式存在,这些文献与现在仍然相关。近年来,传统的卷积神经网络(CNN)在图像处理和模式识别方面的应用取得了显著的进展。但是,CNN的池化操作忽略了重要的空间信息,而空间信息在很多情况下是必不可少的属性。本文提出的胶囊网络提取空间信息,提高了传统CNN的能力。它使用胶囊来描述多维特征,并使用动态路由来提高网络性能。
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引用次数: 4
期刊
2019 Women Institute of Technology Conference on Electrical and Computer Engineering (WITCON ECE)
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