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2016 International Conference on Intelligent Systems Engineering (ICISE)最新文献

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A comparative study of controllers for optimal speed control of hybrid electric vehicle 混合动力汽车最优速度控制控制器的比较研究
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475142
M. A. Saeed, Nisar Ahmed, Mujahid Hussain, Adnan Jafar
In this article, speed of a non-linear hybrid electric vehicle (HEV) is achieved by adjusting its throttle position. Different controllers such as proportional-integral-derivative (PID), pole placement controller, linear quadratic regulator (LQR) and state observer based controller (OBC) are proposed. First, mathematical model of the vehicle is designed then open-loop stability, controllability and observability of the model is verified. The purpose of this paper is to ensure uniform throttle movement, to maintain a desired vehicle speed and zero steady-state speed to increase the efficiency of the vehicles because the modern electric vehicles are very much reliant on control automation system applied. Time domain analysis is applied and through repetitive simulations, better optimal control technique is established which gives better fuel economy and improved driving safety by controlling speed of electric vehicles through throttle position.
在本文中,非线性混合动力汽车(HEV)的速度是通过调节其油门位置来实现的。提出了比例-积分-导数(PID)控制器、极点配置控制器、线性二次型调节器(LQR)和基于状态观测器的控制器(OBC)。首先,设计了飞行器的数学模型,并对模型的开环稳定性、可控性和可观测性进行了验证。由于现代电动汽车非常依赖于控制自动化系统的应用,因此本文的目的是确保油门运动均匀,保持理想的车速和零稳态车速,以提高车辆的效率。应用时域分析方法,通过反复仿真,建立了更好的最优控制技术,通过油门位置控制电动汽车的速度,提高了燃油经济性和行驶安全性。
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引用次数: 14
An active Power Factor Correction technique for bridgeless boost AC-DC converter 无桥升压交直流变换器有源功率因数校正技术
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475174
Mukhzan Mobeen Ali, Sardar Shazali Sikander, Usman Ali, Arbab Waleed
As most of the electronic appliances use DC power so improvement in AC-DC converter is always at large by the researchers. The factors of improvement of power quality are reduction in total harmonic distortion and improvement in power factor at input ac, and tight output dc regulation. In such context, the AC-DC boost converters have gained significant importance, especially when they are used in Continuous Conduction Mode (CCM). This work presents a bridgeless AC-DC boost converter operating in CCM. The implementation of input current and output voltage controller is also discussed. Then a comparative analysis based on simulation results of bridgeless and bridge boost rectifier is presented. Bridgeless boost AC-DC converter has outperformed the conventional techniques due to lower conduction losses, lower THD of input current and improved input power factor.
由于大多数电子设备都使用直流电源,因此对交直流变换器的改进一直是研究人员关注的焦点。改善电能质量的主要因素是减少总谐波畸变和改善输入交流时的功率因数,以及加强输出直流调节。在这种情况下,交流-直流升压变换器变得非常重要,特别是当它们用于连续传导模式(CCM)时。本文提出了一种在CCM中工作的无桥AC-DC升压变换器。并讨论了输入电流和输出电压控制器的实现。在此基础上,对无桥升压整流器和桥式升压整流器的仿真结果进行了对比分析。无桥升压交流-直流变换器由于具有更低的导通损耗、更低的输入电流THD和更高的输入功率因数而优于传统技术。
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引用次数: 6
Channel equalization for MIMO-FBMC systems MIMO-FBMC系统的信道均衡
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475133
A. Waseem, Aleem Khaliq, R. Ahmad, M. F. Munir
In recent years, it is been a great challenge to have high data transmission rates with additional bandwidth at the same time in wireless communication systems. Multicarrier systems along with MIMO have provided good results in achieving high bandwidth and spectral efficiency. Recently Filter bank multicarrier systems (FBMC) have been implemented and provided better results in terms of spectral shaping of the subcarriers as compared to the traditional orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP). Consequently, the major observable difference between the two approaches is in frequency selectivity. In this research, we will present a modified neural network based algorithm (NN) which is based on mean-squared error (MSE) trained for MIMO-FBMC systems with QAM modulation (QAM). The algorithm presents a per-subchannel adaptive channel equalizer with low complexity. Practical channel information has been used in the simulations. Furthermore, the convergence characteristic curves of NN based equalizer per-subcarrier will be discussed and also how the proposed algorithm will be optimized and evaluated. Moreover, to elaborate equalization concepts more in detail the proposed equalizer will be implemented for classical OFDM-QAM system and results will be compared to the simulations performed for traditional least mean square (LMS) based per-subcarrier channel equalizer.
近年来,在无线通信系统中,如何在高传输速率的同时增加带宽是一个巨大的挑战。多载波系统与MIMO相结合,在实现高带宽和频谱效率方面取得了良好的效果。近年来,滤波器组多载波系统(FBMC)已经实现,并且在子载波频谱整形方面比传统的带循环前缀(CP)的正交频分复用(OFDM)有更好的效果。因此,两种方法之间的主要可观察到的区别在于频率选择性。在这项研究中,我们将提出一种改进的基于神经网络的算法(NN),该算法基于均方误差(MSE)训练,用于具有QAM调制(QAM)的MIMO-FBMC系统。该算法提出了一种低复杂度的子信道自适应均衡器。仿真中采用了实际信道信息。此外,还讨论了基于神经网络的每子载波均衡器的收敛特性曲线,以及如何对该算法进行优化和评估。此外,为了更详细地阐述均衡概念,将在经典的OFDM-QAM系统中实现所提出的均衡器,并将结果与传统的基于最小均方(LMS)的每子载波信道均衡器的仿真进行比较。
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引用次数: 1
Wind estimation for lateral path following of UAVs using higher order sliding mode 基于高阶滑模的无人机横向航迹跟踪风估计
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475150
Syed Ussama Ali, M. Z. Shah, R. Samar, A. Waseem
In design of guidance algorithm's wind is often ignored or only considered implicitly. Persistent winds has a very significant nonlinear effect on the guidance scheme as for small UAVs these disturbances can strongly affect their spatial orientation. This research work extends the idea of sliding mode control for parameter estimation of UAV nonlinear dynamics. The uncertain parameter estimation scheme is designed to estimate wind based on the higher order sliding mode robust differentiator (HOSMD) using rate of change of heading of the vehicle. Further these estimates are then included in the guidance algorithm. The UAVs guidance algorithm's objective is to derive the lateral track error towards zero with graceful and stable manoeuvres and then to keep it as minimum as possible while subject to disturbing winds. In this scheme a second order sliding motion is established along designed sliding manifold and outputs the reference bank commands for improved tracking performance using estimates during curved arcs. The estimation is combined seamlessly with robust guidance algorithm to produce integrated identification and guidance scheme for lateral path following application. The combined framework is capable of robust accurate path following in the presence of wind disturbance. The algorithm is implemented in the flight control simulation of scaled YAK-54 research UAV; simulation test results are presented. These results demonstrate the effectiveness and performance of the proposed lateral guidance scheme.
在制导算法的设计中,往往忽略或只隐式地考虑风的影响。对于小型无人机来说,持续风对制导方案具有非常显著的非线性影响,这些干扰会强烈地影响其空间定向。本研究将滑模控制思想扩展到无人机非线性动力学参数估计中。设计了基于车辆航向变化率的高阶滑模鲁棒微分器(HOSMD)的不确定参数估计方案。然后将这些估计值纳入制导算法。无人机制导算法的目标是在优雅稳定的机动下使横向航迹误差趋于零,然后在受干扰风的影响下使横向航迹误差尽可能小。该方案在设计的滑动流形上建立二阶滑动运动,并根据弧度估计输出参考库命令以提高跟踪性能。将该估计与鲁棒制导算法无缝结合,生成横向路径跟踪应用的综合识别和制导方案。该组合框架能够在存在风扰动的情况下进行鲁棒准确的路径跟踪。将该算法应用于雅克-54型研究无人机的飞行控制仿真;给出了仿真试验结果。实验结果验证了所提横向制导方案的有效性和性能。
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引用次数: 6
Auction-based task allocation scheme for dynamic coalition formations in limited robotic swarms with heterogeneous capabilities 具有异构能力的有限机器人群动态联盟编队的竞价任务分配方案
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475122
Muhammad Irfan, A. Farooq
Task allocation is one of the main issues to be addressed in the domain of multi-robot systems, in which it is determined which robot(s) should execute which task(s) so that overall system goal is achieved. Such collective decision making process is of great significance during complex task execution by swarm of simple robots with heterogeneous capabilities. This work targets the issue of coalition formations in a limited swarm of robots to perform a task requiring multiple single-task robots (ST-MR-IA) depending upon their heterogeneous capability conditions. Capabilities of individual robots may vary to different certain levels in a dynamic environment during task execution which can further affect the coalition formed to execute a specific complex task requiring certain level of collective/group capability. This study aims to suggest an algorithm for task allocations through auction mechanism to form a new or modify a coalition underway, where individual robots may gain or lose their task capabilities at certain time instants. Effectiveness of proposed algorithm in terms of task-execution time and utility of coalitions is analyzed through simulations.
任务分配是多机器人系统中需要解决的主要问题之一,任务分配是确定哪些机器人应该执行哪些任务,从而实现系统的总体目标。这种集体决策过程对具有异构能力的简单机器人群执行复杂任务具有重要意义。这项工作的目标是在有限的机器人群中形成联盟,根据它们的异构能力条件执行需要多个单任务机器人(ST-MR-IA)的任务。在任务执行的动态环境中,单个机器人的能力可能会发生一定程度的变化,进而影响为执行特定复杂任务而形成的联盟,这需要一定程度的集体/群体能力。本研究旨在提出一种通过拍卖机制进行任务分配的算法,以形成一个新的或修改正在进行的联盟,其中单个机器人可能在特定时刻获得或失去其任务能力。通过仿真分析了该算法在任务执行时间和联盟效用方面的有效性。
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引用次数: 27
Frequency response measurements based reduced order identification for dc-dc converter 基于降阶辨识的dc-dc变换器频响测量
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475165
Xiancheng Zheng, Husan Ali, Xiaohua Wu, Onai Kuseso, Shahbaz Khan, H. Zaman
This paper discusses the measurement of frequency response functions at the input and output terminals of a prototype dc-dc buck converter. The frequency domain identification procedure is applied to the measured frequency response functions. The set of these transfer functions is used for black-box modeling of dc-dc converter. Distributed power systems are comprised of numerous such converters in various configurations. The system level analysis of such systems becomes complex when individual converter models are of high order. So a model order reduction technique is applied to reduce the order of the transfer functions. While reducing the order of the system, it has been ensured that the system retains the dynamics of the full order system.
本文讨论了样机dc-dc降压变换器输入端和输出端的频响函数的测量。频域识别程序应用于测量的频响函数。将这些传递函数集合用于dc-dc变换器的黑盒建模。分布式电力系统由许多不同配置的这样的变流器组成。当单个转换器模型为高阶时,系统级分析变得复杂。因此采用模型降阶技术来降低传递函数的阶数。在减少系统秩序的同时,又保证了系统保持了全秩序系统的动态。
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引用次数: 3
Fully automated assessment of Macular Edema using Optical Coherence Tomography (OCT) images 全自动评估黄斑水肿使用光学相干断层扫描(OCT)图像
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475153
Bilal Hassan, G. Raja
Macular Edema (ME) is the retinal disorder which is caused because of fluid deposition in the sub-retinal layers. It causes loss of central vision if left untreated. The symptoms of this disease are not apparent in early stage and as the disease progresses; it becomes very difficult to diagnose. Optical Coherence Tomography (OCT) imaging is one of the latest and efficient techniques for the detection of macular edema at early stage. This paper proposes a fully automated method for the identification of ME from OCT images using Discriminant Analysis (DA) classifier. We trained the classifier by extracting 3 different features (max and min thickness between Inner Limiting Membrane (ILM) layer and choroid layer and the difference of max and min thickness) from 16 labeled OCT image. 30 OCT images (15 Healthy, 15 ME) are studied in proposed research. Our algorithm correctly classified 100% of ME patients and 93.33% of healthy patients.
黄斑水肿(ME)是一种视网膜疾病,是由于视网膜下层的液体沉积引起的。如果不及时治疗,会导致中央视力丧失。该病的症状在早期和随着疾病的发展而不明显;它变得非常难以诊断。光学相干层析成像(OCT)是一种最新和有效的早期黄斑水肿检测技术。本文提出了一种利用判别分析(DA)分类器从OCT图像中自动识别ME的方法。我们通过从16张标记OCT图像中提取3个不同的特征(ILM层与脉络膜层之间的最大和最小厚度以及最大和最小厚度之差)来训练分类器。本研究对30张OCT图像(15张健康图像,15张ME图像)进行了研究。我们的算法对ME患者的正确率为100%,对健康患者的正确率为93.33%。
{"title":"Fully automated assessment of Macular Edema using Optical Coherence Tomography (OCT) images","authors":"Bilal Hassan, G. Raja","doi":"10.1109/INTELSE.2016.7475153","DOIUrl":"https://doi.org/10.1109/INTELSE.2016.7475153","url":null,"abstract":"Macular Edema (ME) is the retinal disorder which is caused because of fluid deposition in the sub-retinal layers. It causes loss of central vision if left untreated. The symptoms of this disease are not apparent in early stage and as the disease progresses; it becomes very difficult to diagnose. Optical Coherence Tomography (OCT) imaging is one of the latest and efficient techniques for the detection of macular edema at early stage. This paper proposes a fully automated method for the identification of ME from OCT images using Discriminant Analysis (DA) classifier. We trained the classifier by extracting 3 different features (max and min thickness between Inner Limiting Membrane (ILM) layer and choroid layer and the difference of max and min thickness) from 16 labeled OCT image. 30 OCT images (15 Healthy, 15 ME) are studied in proposed research. Our algorithm correctly classified 100% of ME patients and 93.33% of healthy patients.","PeriodicalId":127671,"journal":{"name":"2016 International Conference on Intelligent Systems Engineering (ICISE)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116631321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Impact of DC grid topology on transient stability of HVDC-segmented power system 直流电网拓扑结构对高压直流分段电力系统暂态稳定性的影响
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475161
R. Naeem, M. Khan, Z. Ali, Wajahat Sultan, Farhan Naeem
This paper compares the effects of ring, radial and interconnected DC grid topologies on the transient stability of a segmented 15 - bus electric grid for different HVDC schemes. For this purpose, three HVDC convertor technologies and four HVDC station configurations are considered. A three phase AC bus fault is applied and the rotor angle disturbance is analyzed. The results show that the transient stability is dependent on the topology for bipolar configuration of line commutated current source and capacitor commutated convertor technologies. For rest of the HVDC schemes, transient stability is independent of the topology used.
本文比较了环形、径向和互联直流电网拓扑结构对不同直流输电方案下分段15母线电网暂态稳定性的影响。为此,考虑了三种高压直流变换器技术和四种高压直流站配置。以某三相交流母线故障为例,分析了转子角度扰动。结果表明,线路整流电流源和电容整流变换器的双极结构的暂态稳定性与拓扑结构有关。对于其余的高压直流输电方案,暂态稳定性与所使用的拓扑无关。
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引用次数: 2
Electromagnetic-based bridge energy harvester using traffic-induced bridge's vibrations and ambient wind 利用交通引起的桥梁振动和环境风的电磁桥梁能量采集器
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475152
F. Khan, M. Iqbal
This paper presents a novel electromagnetic-based bridge energy harvester (EBEH) utilizing bridge vibrations and ambient wind to harvest energy for wireless sensor nodes (WSNs) used for monitoring the health of bridges. The architecture, working principle, fabrication and characterization of the harvester is discussed. The harvester consists of a fixed wound coil, a permanent magnet, an airfoil, a cantilever beam and a base support. The harvester is characterized both under ambient vibration and wind energies. The EBEH generated an open circuit voltage of about 1 V at resonance and under 1 g base acceleration. However, when a load resistance of 54.5 Ω is connected across its terminals, it produced an rms voltage of 290 mV. Moreover, the harvester delivered a maximum power of 354.5 μW to matching impedance at the first resonant frequency of 3.6 Hz, when provided an excitation level of 0.4 g.
本文提出了一种新型的基于电磁的桥梁能量采集器(EBEH),利用桥梁振动和环境风来收集能量,用于监测桥梁的健康状况。论述了该收割机的结构、工作原理、制作方法和性能特点。收割机由一个固定缠绕线圈、一个永磁体、一个机翼、一个悬臂梁和一个基座支撑组成。该收割机在环境振动和风能下都具有特性。EBEH在谐振和1g基极加速度下产生约1v的开路电压。然而,当负载电阻54.5 Ω连接在其端子上时,它产生的有效值电压为290 mV。此外,在第一谐振频率为3.6 Hz时,当激励水平为0.4 g时,该收割机对匹配阻抗的最大功率为354.5 μW。
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引用次数: 19
Energy management and control of grid-connected wind/fuel cell/battery Hybrid Renewable Energy System 并网风能/燃料电池/电池混合可再生能源系统的能源管理与控制
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475114
T. Kamal, S. Z. Hassan, Hui Li, Sidra Mumtaz, L. Khan
This manuscript explains an energy management and control of grid-connected Hybrid Renewable Energy System (HRES). It describes a Wind Turbine (WT) and hybrid energy storage system based on hydrogen technology (fuel cell), and battery. DC/DC converters are used to connect all the energy sources and storage system to a common DC bus. The output of DC bus is integrated to the national grid through three phase inverter to increase the continuity of power. The proposed HRES is working under classical-based supervisory control algorithm. According to the proposed algorithm, the wind is used the primary energy source to satisfy the load demands. The fuel cell is used to ensure long-term energy balance by using the hydrogen technology. The battery is utilized as a backup and high energy density device to keep the DC-bus voltage constant. The performance of the HRES is verified under real-world record of wind speed and load variations for the twenty five households at Islamabad, Pakistan. Matlab/Simulink results are provided to show the right performance of the proposed system in terms of load tracking, voltage regulation, and grid stability.
本文介绍了一种并网混合可再生能源系统(HRES)的能量管理与控制。介绍了一种基于氢技术(燃料电池)和电池的风力涡轮机(WT)和混合储能系统。DC/DC转换器用于将所有能源和存储系统连接到公共直流母线上。直流母线输出通过三相逆变器集成到国家电网,增加电力的连续性。所提出的HRES是在基于经典的监督控制算法下工作的。该算法将风力作为满足负荷需求的主要能源。燃料电池采用氢技术,保证长期的能量平衡。电池被用作备用和高能量密度装置,以保持直流母线电压恒定。HRES的性能在巴基斯坦伊斯兰堡25户家庭的风速和负荷变化的真实记录下得到验证。Matlab/Simulink实验结果表明,该系统在负载跟踪、电压调节和电网稳定性方面具有良好的性能。
{"title":"Energy management and control of grid-connected wind/fuel cell/battery Hybrid Renewable Energy System","authors":"T. Kamal, S. Z. Hassan, Hui Li, Sidra Mumtaz, L. Khan","doi":"10.1109/INTELSE.2016.7475114","DOIUrl":"https://doi.org/10.1109/INTELSE.2016.7475114","url":null,"abstract":"This manuscript explains an energy management and control of grid-connected Hybrid Renewable Energy System (HRES). It describes a Wind Turbine (WT) and hybrid energy storage system based on hydrogen technology (fuel cell), and battery. DC/DC converters are used to connect all the energy sources and storage system to a common DC bus. The output of DC bus is integrated to the national grid through three phase inverter to increase the continuity of power. The proposed HRES is working under classical-based supervisory control algorithm. According to the proposed algorithm, the wind is used the primary energy source to satisfy the load demands. The fuel cell is used to ensure long-term energy balance by using the hydrogen technology. The battery is utilized as a backup and high energy density device to keep the DC-bus voltage constant. The performance of the HRES is verified under real-world record of wind speed and load variations for the twenty five households at Islamabad, Pakistan. Matlab/Simulink results are provided to show the right performance of the proposed system in terms of load tracking, voltage regulation, and grid stability.","PeriodicalId":127671,"journal":{"name":"2016 International Conference on Intelligent Systems Engineering (ICISE)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133937380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
期刊
2016 International Conference on Intelligent Systems Engineering (ICISE)
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