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2022 International Virtual Conference on Power Engineering Computing and Control: Developments in Electric Vehicles and Energy Sector for Sustainable Future (PECCON)最新文献

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A Simple Number Plate Detection Technique with Support Vector Machine for On-Road Vehicles 基于支持向量机的道路车辆车牌简单检测技术
K. Anusha, S. Nachiyappan, M. Braveen, K. Pradeep, Siva Reshma Yarlagadda
A Number Plate Detection Technique is a well-known and widely used tool during current era because of the rapid increase in vehicles day by day. The detection of number plates from traffic videos / images system uses a digital image processing technique for the identification of the car registration number plate on the vehicles. This device is utilized indensely populated region to spot the vehicles which are violating the traffic rules, are handed down in malls to allot automobile parking space, identification of the stolen vehicles and also helpful in crime scene investigation. Image of the vehicle is pre-processed by reading the image from a dataset (b) converting it into a gray-scale image and (b) by removing the noises from the image using Gaussian techniques. This number plate is extracted from the image by implementing the contour enhancement method and on extracted characters, machine learning algorithms are used to train the model to perform the segmentation. Within the character recognition process, we classify the characters. The proposed number plate detection technique shows significant improvement in accuracy rate when compared with standard existing systems.
车牌检测技术是当今时代由于车辆数量的迅速增加而被广泛使用的一种工具。从交通视频/图像中检测车牌系统使用数字图像处理技术来识别车辆上的汽车登记车牌。该装置用于人口密集地区发现违反交通规则的车辆,分发到商场,用于分配汽车停车位,识别被盗车辆,也有助于犯罪现场调查。通过从数据集中读取图像(b)将其转换为灰度图像(b)使用高斯技术去除图像中的噪声,对车辆图像进行预处理。采用轮廓增强的方法从图像中提取车牌,并在提取的特征上使用机器学习算法训练模型进行分割。在字符识别过程中,我们对字符进行分类。与现有的标准车牌检测系统相比,所提出的车牌检测技术的准确率有了显著提高。
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引用次数: 1
A Comprehensive Study on the Impact of Artificial Intelligence in Autonomous Vehicles 人工智能对自动驾驶汽车影响的综合研究
A. Balasundaram, M. R. Prusty, Ayesha Shaik
Autonomous Vehicles (AV) is one of the prominent research areas in Automobile industry. This autonomous vehicle manufacturing and testing involves several influencing factors that need to be analysed and subsequent decision making is carried out. Added to that the decisions have to be precise and fast. Hence, it is necessary that several activities pertaining to AV leverage the services of Artificial Intelligence (AI) for its functioning. This paper performs a comprehensive study of how Artificial Intelligence and its allied sub domains play a pivotal role in AV operations. The study discusses in detail about the various complex operations in AV for which AI is used to provide solutions. Also, a clear mapping of various sub domains of AI to AV problems is performed. Finally a mapping depicting various complex operations in AV and related AI based solutions in provided.
自动驾驶汽车(AV)是汽车工业的一个重要研究领域。这种自动驾驶汽车的制造和测试涉及到几个需要分析的影响因素,并进行后续决策。此外,决策必须精确和快速。因此,与自动驾驶相关的一些活动有必要利用人工智能(AI)的服务来实现其功能。本文对人工智能及其相关子领域如何在自动驾驶作战中发挥关键作用进行了全面研究。该研究详细讨论了自动驾驶汽车中的各种复杂操作,人工智能为这些操作提供了解决方案。此外,还执行了人工智能的各个子域到自动驾驶问题的清晰映射。最后给出了自动驾驶中各种复杂操作的映射和相关的基于人工智能的解决方案。
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引用次数: 0
Performance Analysis of Adaptive Integrated Power Conversion System for Electric Vehicles 电动汽车自适应集成功率转换系统性能分析
P. Arunkrishna, C. Asha, P. Preetha
In recent times, research towards more ecological and nonpolluting forms of transportation has been motivated by climate change and the exhaustion offossil resources. With their ability to reduce reliance on non - renewable and extraordinary flexibility, electric vehicles (EVs) can make a substantial contribution to this. An adaptive integrated power conversion system (IPCS) is examined in this research, which could eliminate the need for separate power converters and perform in two modes: battery charging and electric propulsion. In this integrated topology, the cascaded dual active bridge (DAB) bidirectional dc-dc converter along with a dc-ac voltage source inverter (VSI) share common power components. This set-up for the system in electric vehicles decreases the switch count and the volume of the power converter unit. An artificial neural network (ANN) controller is used to implement speed control of a three-phase induction motor (IM) via constant V /f regulation for traction operation in closed loop. The backpropagation method and the Levenberg-Marquardt (LM) algorithm are used to train the network. In this paper the adaptive IPCS is compared to the traditional PI based system. The findings of two control modalities are provided, and the comparison analysis is validated with MATLAB Simulink.
近年来,气候变化和化石资源的枯竭推动了对更生态、更无污染的交通方式的研究。凭借其减少对不可再生能源依赖的能力和非凡的灵活性,电动汽车(ev)可以为此做出重大贡献。本文研究了一种自适应集成功率转换系统(IPCS),该系统可以消除对单独功率转换器的需求,并在电池充电和电力推进两种模式下工作。在这种集成拓扑结构中,级联双有源桥(DAB)双向dc-dc转换器与dc-ac电压源逆变器(VSI)共享通用功率元件。电动汽车系统的这种设置减少了开关数量和功率转换器单元的体积。采用人工神经网络(ANN)控制器对三相异步电动机进行恒V /f调节,实现闭环牵引运行速度控制。采用反向传播方法和Levenberg-Marquardt (LM)算法对网络进行训练。本文将自适应IPCS与传统的基于PI的系统进行了比较。给出了两种控制方式的结果,并在MATLAB Simulink中进行了对比分析。
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引用次数: 1
OPTICAL CHARACTER RECOGNITION FOR VISUALL YCHALLENGED PEOPLE WITH SHOPPING CART USING AI 使用人工智能为购物车中的视觉障碍人士进行光学字符识别
S. Samundeswari, V. Lalitha, V. Archana, K. Sreshta
Disability is defined as a situation in which one must rely on others help to meet daily needs. Visual impairment is one of them. Several approaches to improving the quality to live for visually impaired and blind people have been proposed so far, buying things in the store without the help of others is always a difficult undertaking for them. A camera-based assistive text reading framework is being developed as a solution to aid blind individuals in reading text labels and product packaging from hand-held objects in their shopping store. To distinguish the object from crowded backdrops or other nearby objects in the camera view, we used an old, active motion-based method to focus a region of interest (ROI) in the picture by asking the user to shake the object. Based on real-time situations, the voice instructions will aid the user inside the supermarket. The maj or goal of this system is to eliminate other people's assistance in shopping for visually impaired persons by providing them with a convenient, smart environment. When this prototype method is implemented, that makes shopping and product purchasing easier for blind people, saves time for customers, and increases business sales. Where user interface difficulties are investigated and the algorithm's robustness in extracting and reading text from objects with complicated backgrounds is evaluated.
残疾被定义为一种必须依靠他人帮助来满足日常需求的情况。视力障碍就是其中之一。目前已经提出了几种改善视障人士和盲人生活质量的方法,在没有别人帮助的情况下在商店买东西对他们来说总是一件困难的事情。一种基于相机的辅助文本阅读框架正在开发中,作为一种解决方案,帮助盲人阅读商店中手持物品上的文本标签和产品包装。为了将物体与拥挤的背景或相机视图中的其他附近物体区分开来,我们使用了一种旧的、基于主动运动的方法,通过要求用户摇动物体来聚焦图像中的感兴趣区域(ROI)。基于实时情况,语音指令将帮助超市内的用户。该系统的主要目标是通过为视障人士提供方便、智能的购物环境,消除其他人在购物时的帮助。当这个原型方法实现后,盲人购物和购买产品变得更加容易,为顾客节省了时间,并增加了业务销售。研究了用户界面的难点,评估了算法在复杂背景下提取和读取文本的鲁棒性。
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引用次数: 0
Smart Energy Management System for University Campus using Sine-Cosine Optimization Algorithm 基于正弦余弦优化算法的高校校园智能能源管理系统
Irshad Hussain, Ibrar Ullah, R. Ramalakshmi, Tanzila, M. Ashfaq, D. Nayab
We are living in the age of electricity, and it has become an essential part of our lives. We generate power in power stations, which are then transmitted to users for usage. The power that is generated at power stations are fixed and can be increased only through the replacement of the whole structure and this is not a feasible solution to be repeated multiple times, because of many issues that retain it from doing this. So in order to use the generated power efficiently, smart grids play a significant role in minimizing electricity consumption and cost through Demand Side Management (DSM). Smart homes, a specific portion of smart grid performs a very significant role in minimizing cost and consumption via scheduling home appliances. As a result, user waiting time will increase. This scheduling problem is viewed as an optimization problem in this work. An efficient scheme called the Sine-Cosine algorithm (SCA) is being employed in this work. The proposed scheme is implemented on the campus load of a university. Which contains a variety of appliances that are scheduled using the SCA technique. The simulations produced extremely beneficial results in terms of Peak to Average Ratio (PAR) and electricity cost reductions, while keeping an appropriate threshold ratio between the cost of electricity i.e. electrical bill and waiting time of users i.e. user's comfort.
我们生活在电力时代,它已经成为我们生活中必不可少的一部分。我们在发电站发电,然后传输给用户使用。发电站产生的电力是固定的,只能通过更换整个结构来增加,这不是一个可行的解决方案,因为有许多问题阻碍它这样做。因此,为了有效地利用发电,智能电网通过需求侧管理(DSM)在最大限度地减少电力消耗和成本方面发挥着重要作用。智能家居是智能电网的一个特定部分,通过调度家电,在最大限度地降低成本和消耗方面发挥着非常重要的作用。因此,用户的等待时间将会增加。这个调度问题在本研究中被视为一个优化问题。在这项工作中采用了一种称为正弦余弦算法(SCA)的有效方案。该方案以某大学的校园负荷为例进行了实施。其中包含使用SCA技术调度的各种设备。模拟在峰值平均比(PAR)和电费成本降低方面产生了非常有益的结果,同时在电费成本(即电费)与用户等待时间(即用户舒适度)之间保持了适当的阈值比率。
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引用次数: 0
Experimentation Methodology of Orthogonal Frequency Division Multiplexing Signals Process using Radio over Fiber (RoF) system 光纤无线电(RoF)系统正交频分复用信号处理的实验方法
A. Sathishkumar, Sankararao Majji, Tulasi Radhika Patnala, Santoshachandra Rao Karanam, Ashok Kumar V, Mula Malyadri
Current and future trends in broadband communication, particularly for 5G mobile applications, will include Orthogonal Frequency Division Multiplexing (OFDM) into Radio over Fiber (RoF) technology. Its resistance to multipath fading and spectrum efficiency have made Orthogonal Frequency Division Multiplexing a well-known technique. Network spectrum efficiency has been achieved using the modulation format in optical and wireless communication systems. After that, a system was proposed in which four 18Gbps QAM (Quadrature Amplitude Modulation) signals were generated in each transmitter and modulated in continuous wave (CW) using Mach Zehnder Modulator (MZM) before being transmitted over Single Mode Fiber (SMF), which performs significantly high data rates and is cost-effective in accordance with the results modelled.
宽带通信的当前和未来趋势,特别是5G移动应用,将包括正交频分复用(OFDM)到光纤无线电(RoF)技术。它的抗多径衰落和频谱效率使正交频分复用技术成为一种众所周知的技术。在光通信和无线通信系统中,采用调制格式可以提高网络频谱效率。在此基础上,提出了一个系统,在每个发射机中产生4个18Gbps的QAM(正交调幅)信号,使用马赫曾德尔调制器(MZM)以连续波(CW)调制,然后通过单模光纤(SMF)传输,该系统具有很高的数据速率,并且具有成本效益。
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引用次数: 0
Performance Analysis of State of Charge Estimation Techniques for Two-Wheeler Electric Vehicles 两轮电动汽车充电状态估计技术的性能分析
Pragya Tyagi, L. Padmavathi, A. Abhishek
In this article, a comparative study of the various state of charge (SOC) estimation methods, for example, coulomb count (CC), Kalman filter (KF), and extended Kalman filter (EKF), has been presented for a two-wheeler electric vehicle's Lithium-ion (Li-ion) battery. Accurate estimation of SOC is a critical requirement in EV for its range prediction, charging mode selection, remaining useful life estimation, etc. However, SOC prediction is a challenging task due to the nonlinearities of the battery. Therefore, an electrical equivalent circuit model of Li-ion battery is devised in this work, and the above-said methods, i.e., CC, KF, and EKF, are developed in MATLAB Simulink for battery's SOC estimation under different discharge test profiles. A 39 Ah capacity Li-ion battery with a nominal voltage rating of 72 V, suitable for two-wheeler EV application, is considered for study with all the estimation techniques. It has been found that the EKF method provides minimal error (< ±0.l %) in SOC estimation under all loading conditions since it can incorporate the nonlinearities of battery in its estimation technique.
本文对两轮电动汽车锂离子电池的荷电状态(SOC)估计方法,如库仑计数(CC)、卡尔曼滤波(KF)和扩展卡尔曼滤波(EKF)进行了比较研究。准确的荷电状态估算是电动汽车续航里程预测、充电模式选择、剩余使用寿命估算等方面的重要要求。然而,由于电池的非线性,SOC预测是一项具有挑战性的任务。因此,本文设计了锂离子电池的等效电路模型,并在MATLAB Simulink中开发了CC、KF和EKF方法,用于估算不同放电测试工况下电池的荷电状态。考虑了一种适用于两轮电动汽车的容量为39ah、标称额定电压为72v的锂离子电池,并进行了所有评估技术的研究。发现EKF方法提供最小的误差(<±0。在所有负载条件下的荷电状态估计中,由于它可以将电池的非线性纳入其估计技术中。
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引用次数: 0
Reducing Grid Dependency and Operating Cost of Micro Grids with Effective Coordination of RES and EV Storage 可再生能源与电动汽车储能有效协调降低微电网对电网的依赖和运行成本
Arava Sudhakar, B. M. Kumar
The growth of smart grids has led to number of challenges in order to maintain power quality and reliability. On the other hand, the advanced technologies are helping to address the issues that arise due to the heterogeneous entities such as Intermittent Renewable Energy Sources (IRES) and Electric Vehicles (EV's). EV's storage can be utilized to support the energy management in micro grids and other flexible areas like Industries and educational organizations. In order to use EV s as virtual storage units, one has to ensure all the constraints and limitations that are involved. Above all, EV usage for grid energy management should not put EV owner in a chaotic state. There has been numerous EV control strategies proposed for V2G and G2V operations since last decade. Still, it is a big challenge in the real-time environment to address sensitive issues such as: owner flexibility, battery degradation, economic benefit and other uncertainties. This work mainly focuses on maximization of EV storage usage with consideration of battery degradation. A prioritization-based EV strategy is proposed using Adaptive Neuro-Fuzzy Inference System (ANFIS) with four decision variables. A win-win strategy for maximization of battery lifetime and EV exploitation is considered during the prioritization. The proposed EV technique is implemented for educational organization with real-time travel data. The case study presented in this article provides the comprehensive analysis on the impact of proposed control strategy in different aspects.
智能电网的发展为保持电力质量和可靠性带来了许多挑战。另一方面,先进的技术正在帮助解决因间歇性可再生能源(IRES)和电动汽车(EV)等异构实体而产生的问题。电动汽车的存储可以用于支持微电网和其他灵活领域(如工业和教育机构)的能源管理。为了使用EV作为虚拟存储单元,必须确保所涉及的所有约束和限制。综上所述,电动汽车在电网能源管理中的使用不应使电动汽车所有者处于混乱状态。自过去十年以来,针对V2G和G2V运营提出了许多电动汽车控制策略。尽管如此,在实时环境中,解决诸如车主灵活性、电池退化、经济效益和其他不确定性等敏感问题仍是一个巨大的挑战。本文的研究重点是在考虑电池退化的情况下实现电动汽车存储空间的最大化。利用具有四个决策变量的自适应神经模糊推理系统(ANFIS),提出了一种基于优先级的EV策略。在优化过程中,考虑了电池寿命和电动汽车利用率最大化的双赢策略。提出的EV技术应用于具有实时出行数据的教育机构。本文通过案例分析,全面分析了所提出的控制策略在不同方面的影响。
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引用次数: 0
A Comparative Analysis of Power Generation Using Solar and Fuel Cell for Charging EVs 利用太阳能和燃料电池为电动汽车充电发电的比较分析
B. Tejesh, G. Baskar, B. N. Krishna, K. Deepa, P. Manitha, V. Sailaja
This paper compares results between a fuel cell model and photovoltaic system model usingbuck converter and boost converter which are DC/DC converters. It has limitations, such as a lack of maximum power to meet the application's demands and a significant input current ripple. The constant voltage controller uses its maximum power point tracking (MPPT) technology to collect the maximum power from the fuel cell and solar panel. The MPPT approach improves the efficiency of the electricity provided by the fuel cell and solar panel. The converters selected are advantageous because they reduce the ripple in the current, which might damage the fuel cell stack and solar panel. The classic DC interleaved boost converter and the buck converter using MPPT are simulated using MATLAB/Simulink. Interleaved boost converter is chosen because of its reduced passive component size and reduced current ripple. The constant voltage MPPT technique has proven consistent and linear performance in developing high-efficiency fuel cell systems or with PV systems. The comparison helps in understanding the effectiveness of replacing fuel cell for solar energy in EV charging stations to obtain a steady state power supply without intermittency.
本文比较了采用降压变换器和升压变换器的燃料电池模型和采用DC/DC变换器的光伏系统模型的计算结果。它有局限性,例如缺乏满足应用需求的最大功率和显著的输入电流纹波。恒压控制器使用其最大功率点跟踪(MPPT)技术从燃料电池和太阳能电池板收集最大功率。MPPT方法提高了燃料电池和太阳能电池板提供电力的效率。选择的转换器是有利的,因为它们减少了电流中的纹波,这可能会损坏燃料电池堆和太阳能电池板。利用MATLAB/Simulink对经典直流交错升压变换器和MPPT降压变换器进行了仿真。交错升压变换器的无源元件尺寸小,电流纹波小,因此选用交错升压变换器。恒压MPPT技术在开发高效燃料电池系统或光伏系统方面已被证明具有一致性和线性性能。通过比较,可以了解在电动汽车充电站用太阳能替代燃料电池获得无间断稳态供电的有效性。
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引用次数: 1
Review and Analysis of Techniques to Mitigate Sub Synchronous Resonance using FACTS Devices 利用FACTS器件减轻次同步谐振的技术综述与分析
G. Ramya, P. Suresh, J. Jayashree, A. Charles, T. Daniya
Flexible AC Transmission System devices are reactive power compensation devices employed to suppress the sub synchronous resonance (SSR) in the systems. The main important issue in the transmission lines of power system is SSR and it occurs during the condition, when series compensator is employed to improve the reactive power. It occurs at sub synchronous frequencies due to Electrical instability occurs as the result of shaft failures. Different FACTS devices such as the Static Synchronous Reactor (SSR), Static Synchronous Series Compensator (SSSC), Static Synchronous Compensator, Thyristor Controlled Series Compensator (TCSC), and Unified Power Flow Controller (UPFC) are analysed and reviewed in terms of SSR mitigation to develop a new strategy to mitigate SSR in the system. The new Multilevel inverter-based control strategy will be designed and developed based on the review and analysis using MATLAB Simulink to mitigate the SSR.
柔性交流输电系统是一种用于抑制系统次同步谐振的无功补偿装置。在采用串联补偿器提高无功功率的情况下,SSR是电力系统输电线路中的主要问题。它发生在亚同步频率由于电气不稳定发生作为轴故障的结果。本文对静态同步电抗器(SSR)、静态同步串联补偿器(SSSC)、静态同步补偿器、晶闸管控制串联补偿器(TCSC)和统一潮流控制器(UPFC)等不同的FACTS器件进行了分析和综述,提出了一种新的策略来缓解系统中的SSR。本文将基于MATLAB Simulink的回顾和分析,设计和开发新的基于多电平逆变器的控制策略,以减轻SSR。
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引用次数: 0
期刊
2022 International Virtual Conference on Power Engineering Computing and Control: Developments in Electric Vehicles and Energy Sector for Sustainable Future (PECCON)
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