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2019 IEEE Student Conference on Research and Development (SCOReD)最新文献

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Technical and economic performance evaluation for efficient capacitors sizing and placement in a real distribution network 实际配电网中电容器尺寸和布局的技术经济性能评价
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896285
Theophilus Amara, S. Asefi, Oludamilare Bode Adewuyi, Mikaeel Ahmadi, A. Yona, T. Senjyu
Distribution system optimal planning has been an issue of great priority for utilities, mainly because it is the most vulnerable component in the power system cycle, accounting for a greater percentage of loss in the system. With investment in new electrical facilities continuing to be very expensive, techniques and methods of reduction of active and reactive power losses have been adopted over the years. Apparently, loss reduction and voltage control in distribution networks can be achieved by proper placement and sizing of capacitors. This paper presents a technical and economic solution approach, considering the practical placement of fixed and switched capacitors that is easy to implement using real data and optimization procedure. The procedure is tested on the IEEE 33 bus system and applied to a real distribution network of Freetown (Sierra Leone) with the objective of reducing the total active loss and the annual cost of the system, using particle swarm optimization technique in MATLAB.
配电系统的优化规划一直是电力公司优先考虑的问题,主要是因为它是电力系统周期中最脆弱的部分,占系统损耗的比例较大。由于对新电力设施的投资仍然非常昂贵,多年来一直采用减少有功和无功功率损失的技术和方法。显然,配电网中的损耗降低和电压控制可以通过适当的电容器布局和尺寸来实现。本文提出了一种技术和经济的解决方案,考虑到固定和开关电容器的实际位置,易于使用实际数据和优化程序实现。在ieee33总线系统上对该程序进行了测试,并应用于塞拉利昂弗里敦(Freetown)的一个实际配电网,以降低系统的总有功损耗和年成本为目标,在MATLAB中使用粒子群优化技术。
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引用次数: 2
Modeling of Single-Phase Grid-Connected using MATLAB/Simulink Software 基于MATLAB/Simulink软件的单相并网建模
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896226
A. A. Bakar, M. Amran, S. Salimin, M.K.M. Jamri, A. Gani
This paper present the design and analysis of single-phase grid-connected system by using MATLAB/Simulink software. The main outlines on this paper is the implemented of DC/DC Flyback converter with the proportional integral with (PI) controller, single-phase full-bridge inverter with sinusoidal pulse width modulation (SPWM) switching technique and phase lock-loop (PLL). Initially, all necessary parameters are clearly calculated and the system integration is then by using MATLAB/Simulink software. The results shows that the able to synchronize with grid system which matching frequency and amplitude. In addition, with appropriate design of LC low pass filter, the total harmonic distortion (THD) in the output ac voltage is significantly reduced from 52.45 % to 1.82 %. The design parameter, operating principles, switching techniques of each subsystem are discussed in detail.
本文利用MATLAB/Simulink软件对单相并网系统进行了设计与分析。本文主要概述了采用比例积分带(PI)控制器的DC/DC反激变换器、采用正弦脉宽调制(SPWM)开关技术和锁相环(PLL)的单相全桥逆变器的实现。首先,明确计算所有必要的参数,然后使用MATLAB/Simulink软件进行系统集成。结果表明,该方法能够与频率和幅值匹配的网格系统同步。此外,通过合理设计LC低通滤波器,可将输出交流电压的总谐波失真(THD)从52.45%显著降低到1.82%。详细讨论了各子系统的设计参数、工作原理和切换技术。
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引用次数: 1
Design and Fabrication of Outboard Braking System for All Terrain Vehicle 全地形车外侧制动系统的设计与制造
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896227
Sunny Prajapati, Abhishek Kumar
The main objective of the Brakes is to retard the vehicle quickly and easily. Retarding a vehicle in manner such that driver has complete control over it is essential. The safety while braking is very crucial and is quantified by evaluating mathematical model. In this paper evaluation of mathematical model is done by calculating braking torque and comparing it with the required value. This paper discusses ideas for using various components in the system, design variables and the logic behind selecting those components. The design is done in such a manner so that optimum yet effective braking is achieved. The data related to braking system is used to extract average values of design parameters, making the theoretical calculations as realistic as possible.
制动器的主要目的是使车辆快速、轻松地减速。使车辆减速,使驾驶员能完全控制它是必要的。制动时的安全性是非常重要的,并通过评估数学模型来量化。本文通过计算制动力矩,并与要求值进行比较,对数学模型进行了评价。本文讨论了在系统中使用各种组件的想法,设计变量以及选择这些组件背后的逻辑。该设计以这样一种方式完成,以便实现最佳而有效的制动。利用与制动系统有关的数据提取设计参数的平均值,使理论计算尽可能真实。
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引用次数: 1
Low-power RRAM Device based 1T1R Array Design with CNTFET as Access Device 以CNTFET为存取元件的低功耗RRAM 1T1R阵列设计
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896306
Furqan Zahoor, T. Zulkifli, F. A. Khanday, Aabid Amin Fida
A SPICE model of metal oxide based resistive random access memory (RRAM) devices is demonstrated in this paper having bipolar switching characteristics and utilizing carbon nanotube field effect transistor (CNTFET) in a 1T1R configuration. The growth and the dissolution of the conductive filament in the oxide layer is the basis of the switching mechanism in this model. The model has been implemented in HSPICE simulation software for circuit level analysis. Initially, the simulation of memory cell with CNTFETs is carried out and later on 3*3 memory matrix is analyzed. The proposed design shows a reduction in power consumption as compared to RRAM cell utilizing metal oxide semiconductor field effect transistor (MOSFET) in a 1T1R configuration.
本文展示了一种基于金属氧化物的电阻随机存取存储器(RRAM)器件的SPICE模型,该模型具有双极开关特性,并在1T1R配置中使用碳纳米管场效应晶体管(CNTFET)。导电丝在氧化层中的生长和溶解是该模型中开关机理的基础。该模型已在HSPICE仿真软件中实现,用于电路电平分析。首先对cntfet的存储单元进行了仿真,然后对3*3存储矩阵进行了分析。与在1T1R配置中使用金属氧化物半导体场效应晶体管(MOSFET)的RRAM电池相比,提出的设计显示功耗降低。
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引用次数: 8
Simulation of 33kV String Insulators Using Finite Element Method (FEM) 33kV串形绝缘子有限元模拟
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896273
M. Othman, M. Isa, M. N. Mazlee, M. Piah, N. Rahman
Ceramic insulators consists of glass and porcelain are the traditional insulator that have been used until today in electrical power transmission line. These insulators are the most significant part as electrical insulation that prevents electrical current flow directly to the ground through the transmission tower or pole. However, there are a few stresses that interrupt the systems. Thus, knowledge of about voltage and electric-field in insulators are needed to maintain transmission or distribution grid performance and to ensure the consistency of optimal output power levels delivered to the consumers. An attempt has been made to simulate the voltage and electric field distribution of 33 kV porcelain insulators using finite element method (FEM). Based on simulation results, it is found that the bottom part (pin) of the insulator is the most sensitive area of electric stress. Meanwhile, the electric field and voltage distribution is decreased when moving towards cross arm.
陶瓷绝缘子是由玻璃和瓷器组成的传统绝缘子,一直沿用至今。这些绝缘体是最重要的部分,作为电气绝缘,防止电流通过输电塔或杆子直接流向地面。然而,有一些压力会中断系统。因此,需要了解绝缘子中的电压和电场,以维持输配电电网的性能,并确保向用户提供最佳输出功率水平的一致性。本文尝试用有限元法模拟了33 kV瓷绝缘子的电压和电场分布。仿真结果表明,绝缘子的底部(引脚)是电应力最敏感的区域。同时,向横臂方向运动时,电场和电压分布减小。
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引用次数: 0
Downtime Cost Analysis of Offloading Operations Considering Vessel Motions and Mooring Responses in Malaysian Waters 考虑船舶运动和系泊响应的马来西亚水域卸载作业停机成本分析
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896325
M. S. Patel, M. S. Liew, Z. Mustaffa, A. M. Al-Yacouby, A. Abdurrasheed, A. Whyte
A real time motion of moored FPSO in side-by-side configuration for regular wave is simulated in ANSYS AQWA to evaluate the structure motion responses and cable forces under criteria and operational wave conditions for two sea-state. The mooring failure is simulated wherein whole cable tensile forces are calculated. Downtime occurs when the vessel motion and cable responses in operating wave conditions exceed the safe limiting values. With the help of a real time wave scatter diagram of three different locations in Malaysian waters, the probability occurrences are obtained and finally a novel study on the downtime cost analysis for offloading operations is performed considering structure responses and mooring failure conditions. In this paper, a successful attempt has been made to connect vessel motion responses to cost. This paper evaluates the possible downtime cost and economical risks involved in the different locations of Malaysian waters for offloading operations.
在ANSYS AQWA软件中,模拟了FPSO在规则波浪条件下的实时运动,以评估两种海况下的标准和工作波浪条件下的结构运动响应和索力。模拟了锚泊破坏过程,计算了锚索整体拉力。当船舶运动和电缆在工作波条件下的响应超过安全极限值时,就会发生停机。借助马来西亚水域三个不同位置的实时波散点图,获得了发生概率,最后进行了考虑结构响应和系泊失效条件的卸载作业停机成本分析的新研究。本文成功地将船舶运动响应与成本联系起来。本文评估了马来西亚水域不同位置卸载作业可能涉及的停机成本和经济风险。
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引用次数: 3
Predictive Maintenance of Air Booster Compressor (ABC) Motor Failure using Artificial Neural Network trained by Particle Swarm Optimization 基于粒子群算法的空气增压压缩机(ABC)电机故障预测维护
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896330
N. Rosli, Nurul Rawaida ain Burhani, R. Ibrahim
Predictive maintenance becomes crucial nowadays in industry 4.0 since it will have a high impact on the industrial economy. Therefore, accurate predictive maintenance growing high demand for handling the failure of big plants effectively. In this paper, the model of predictive maintenance for Air Booster Compressor (ABC) Motor failure is using Artificial Neural Network (ANN) is presented. However, the optimal weights of the network are one of the parameters that lead to the accuracy of ANN. Therefore, Particle Swarm Optimization (PSO) is proposed to train the weights and bias of ANN. The result presented in this paper is compared with conventional ANN based on Mean Square Error (MSE) and Root Mean Square Error (RMSE)
在工业4.0时代,预测性维护变得至关重要,因为它将对工业经济产生重大影响。因此,准确的预测性维护对有效处理大型工厂故障的要求越来越高。本文利用人工神经网络(ANN)建立了空气增压压缩机(ABC)电机故障的预测维修模型。然而,网络的最优权值是影响人工神经网络准确性的参数之一。为此,提出了粒子群算法(PSO)来训练神经网络的权值和偏置。将本文的结果与基于均方误差(MSE)和均方根误差(RMSE)的传统人工神经网络进行了比较。
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引用次数: 5
Classification of Rheumatoid Arthritis using Machine Learning Algorithms 类风湿关节炎分类的机器学习算法
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896344
Ho Sharon, I. Elamvazuthi, CK Lu, S. Parasuraman, Elango Natarajan
Rheumatoid Arthritis (RA) is a persistent provocative ailment that effects and decimates the joints of wrist, finger, and feet. If left untreated, one can lose their ability to lead a normal life. RA is the most typical fiery joint inflammation, influencing around 1-2% of the total populace. Throughout the years, soft computing played an important part in helping ailment analysis in doctor's decision process. The main aim of this study is to investigate the possibility of applying machine learning techniques to the analysis of RA characteristics. As a preliminary work, a credible database has been identified to be used for this research. The database has outputs of array temperature values from thermal imaging for the joints of hand. Furthermore, this database which consists of 8 attributes and 32 instances, are used to determine the performance in terms of accuracy for the classification of different algorithms. In this preliminary work, ensemble algorithms such as bagging, AdaBoost and random subspace with base classifier such as random forest and SVM were trained and tested using the assessment criteria such as accuracy, precision, sensitivity and AUC using Weka tool. From the preliminary finding of this paper, it can be concluded that with base classifier SVM, bagging has better classification accuracy over the others and with base classifier random forest Adaboost slightly outperformed other models for rheumatoid arthritis dataset.
类风湿性关节炎(RA)是一种持续的挑衅性疾病,影响和破坏手腕、手指和脚的关节。如果不及时治疗,就会失去过正常生活的能力。类风湿性关节炎是最典型的烈性关节炎症,约占总人口的1-2%。多年来,软计算在帮助医生决策过程中的疾病分析方面发挥了重要作用。本研究的主要目的是探讨将机器学习技术应用于RA特征分析的可能性。作为一项初步工作,已确定一个可靠的数据库用于这项研究。该数据库具有手关节热成像阵列温度值的输出。此外,该数据库由8个属性和32个实例组成,用于确定不同算法在分类精度方面的性能。在本初步工作中,使用Weka工具,对bagging、AdaBoost和随机子空间等集成算法与随机森林和SVM等基本分类器进行了训练和测试,并以准确度、精密度、灵敏度和AUC等评估标准进行了测试。从本文的初步发现可以看出,对于类风湿关节炎数据集,基于基分类器SVM的bagging分类精度优于其他模型,而基于基分类器随机森林的Adaboost分类精度略优于其他模型。
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引用次数: 14
Robust Character Recognition For Optical And Natural Images Using Deep Learning 基于深度学习的光学和自然图像鲁棒字符识别
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896354
Al.maamoon Rasool Abdali, R. F. Ghani
Character recognition is one of the most critical parts of many computer vision system. And many studies have explored character recognition as two subcategories: character recognition in optical images, character recognition natural images while this separation was to achieve high accuracy in each field separated but it needs more hardware resources to operate two models one for each area. In addition to that most researches divided each field into (digits recognition, character recognition) that add extra cost in both time and hardware resources also we found that both areas still have room for accuracy improvement. This paper tackles the problem of the two subclasses by building one robust, accurate classifier using a convolutional neural network that can recognize (characters and digits) accurately in both optical and natural scene images, the proposed model has been trained on a combination of EMNIST and Char74k data sets with a random data augmentation. The proposed model achieved 92% accuracy in EMINST compared to previous works shows that the proposed model has the highest accuracy among all the previous works based on EMNIST data set. We also tested the model on none-seen data sets (ICDAR203) and the obtained results indicate the high generality and the robustness of the classifier.
字符识别是许多计算机视觉系统中最关键的部分之一。许多研究将字符识别分为光学图像中的字符识别和自然图像中的字符识别两个子类,这种分离是为了在每个分离领域都达到较高的精度,但需要更多的硬件资源来运行两个模型,每个领域一个。此外,大多数研究将每个领域分为(数字识别,字符识别),这在时间和硬件资源上都增加了额外的成本,我们发现这两个领域的准确性仍然有提高的空间。本文通过使用卷积神经网络构建一个鲁棒、准确的分类器来解决这两个子类的问题,该分类器可以在光学和自然场景图像中准确识别(字符和数字),所提出的模型已经在EMNIST和Char74k数据集的组合上进行了随机数据增强训练。本文模型在EMNIST数据集上的准确率达到了92%,表明本文模型在以往基于EMNIST数据集的研究中准确率最高。我们还在未见过的数据集(ICDAR203)上测试了该模型,得到的结果表明该分类器具有很高的通用性和鲁棒性。
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引用次数: 4
Review on Security in Bluetooth Low Energy Mesh Network in Correlation with Wireless Mesh Network Security 蓝牙低功耗网状网络安全与无线网状网络安全研究进展
Pub Date : 2019-10-01 DOI: 10.1109/SCORED.2019.8896310
M. R. Ghori, T. Wan, Mohammed Anbar, G. Sodhy, Amna Rizwan
Wireless Mesh Networks (WMN) are becoming inevitable in this world of high technology as it provides low cost access to broadband services. Moreover, the technologists are doing research to make WMN more reliable and secure. Subsequently, among wireless ad-hoc networking technologies, Bluetooth Low Energy (BLE) is gaining high degree of importance among researchers due to its easy availability in the gadgets and low power consumption. BLE started its journey from version 4.0 and announced the latest version 5 with mesh support capability. BLE being a low power and mesh supported technology is nowadays among the hot research topics for the researchers. Many of the researchers are working on BLE mesh technology to make it more efficient and smart. Apart from other variables of efficiency, like all communication networks, mesh network security is also of a great concern. In view of the aforesaid, this paper provides a comprehensive review on several works associated to the security in WMN and BLE mesh networks and the research related to the BLE security protocols. Moreover, after the detailed research on related works, this paper has discussed the pros and cons of the present developed mesh security mechanisms. Also, at the end after extracting the curx from the present research on WMN and BLE mesh security, this research study has devised some solutions as how to mitigate the BLE mesh network security lapses.
无线网状网络(WMN)提供了低成本的宽带接入服务,在这个高科技的世界中成为必然。此外,技术人员正在进行研究,使WMN更加可靠和安全。随后,在无线自组织网络技术中,低功耗蓝牙(BLE)由于其易于在小工具中使用和低功耗而受到研究人员的高度重视。BLE从4.0版本开始,并宣布了具有网格支持功能的最新版本5。低功耗、网状支撑的低功耗无线通信技术是当前研究的热点之一。许多研究人员正在研究BLE网格技术,以使其更高效、更智能。除了效率的其他变量,像所有的通信网络一样,网状网络的安全性也很受关注。鉴于此,本文对WMN和BLE mesh网络安全相关的几项工作以及BLE安全协议相关的研究进行了全面的综述。此外,在对相关工作进行详细研究后,本文对目前开发的mesh安全机制的优缺点进行了讨论。最后,从现有的WMN和BLE mesh网络安全研究中提取出曲线,设计了一些缓解BLE mesh网络安全漏洞的解决方案。
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引用次数: 8
期刊
2019 IEEE Student Conference on Research and Development (SCOReD)
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