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2014 IEEE International Conference on Industrial Technology (ICIT)最新文献

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Improving fault diagnosis and accessibility in Manufacturing automation systems using X3DOM 利用X3DOM改进制造自动化系统的故障诊断和可访问性
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894914
Y. S. Park, R. Harrison, D. Vera, Jeong-han Lee
Today industry has to face the demands of products at lower cost and reduced time-to-market in a global market environment. Solutions require the application with new and innovative technologies to efficiently achieve the desirable functional capabilities. The benefits of Virtual Engineering environments are becoming noticeable at product and process development level but its visualisation has not been applied much at a shop-floor level. Using an automation toolset utilising a component based approach, this paper introduces a Web-based 3D fault diagnosis and its visualisation in a shop-floor that delivers better perception and understanding to engineers, and even provides convenient shop floor accessibility to machine information anytime and anywhere. In particular, this work has implemented 3D fault visualisation using an X3DOM model and technology. It improves the accessibility of 3D visualisation without the need for specific visualisation software and can be deployed on both PC-based hardware and mobile devices.
今天,在全球市场环境下,工业必须以更低的成本和更短的时间面对产品的需求。解决方案要求应用程序具有新的和创新的技术,以有效地实现理想的功能。虚拟工程环境的好处在产品和过程开发层面变得越来越明显,但它的可视化还没有在车间层面得到很多应用。利用基于组件的自动化工具集,本文介绍了基于web的三维故障诊断及其在车间中的可视化,为工程师提供了更好的感知和理解,甚至提供了随时随地方便的车间访问机器信息。特别是,这项工作使用X3DOM模型和技术实现了三维故障可视化。它提高了3D可视化的可访问性,而不需要特定的可视化软件,可以部署在基于pc的硬件和移动设备上。
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引用次数: 2
A novel dual active bridge topology with a tuned CLC network 一种具有调谐CLC网络的新型双有源桥拓扑结构
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894949
R. Twiname, W. Malan, J. Minogue, D. Thrimawithana, U. Madawala, C. Baguley
This paper proposes a novel resonant DAB converter, which uses a tuned capacitor-inductor-capacitor (CLC) network. In comparison to conventional DABs, the proposed topology significantly reduces the bridge currents, lowering both conduction and switching losses and improving power factors associated with the bridges. A mathematical model, which predicts the behavior of the proposed system, is presented to show that both the magnitude and direction of the power flow can be controlled through either relative phase angle or pulse width modulation of voltages produced by the bridges. Viability of the proposed concept is verified through simulation. Experimental results of a 1 kW prototype converter, which has an efficiency of 95% at rated power, are also presented with discussions to demonstrate the improved performance of the CLC DAB topology.
本文提出了一种新型谐振式DAB变换器,该变换器采用调谐电容-电感-电容(CLC)网络。与传统的dab相比,所提出的拓扑结构显著降低了电桥电流,降低了传导和开关损耗,并改善了与电桥相关的功率因数。通过对电桥产生的电压进行相对相角或脉宽调制,可以控制功率流的大小和方向,并建立了预测系统性能的数学模型。通过仿真验证了所提概念的可行性。最后给出了1 kW原型变换器的实验结果,该变换器在额定功率下的效率为95%,并讨论了CLC DAB拓扑的改进性能。
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引用次数: 8
Low cost smart phone controlled car security system 低成本智能手机控制汽车安全系统
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894911
H. Afzal, V. Maheta
Vehicle security and keeping pace of advancement in car features with technology have been major concern in automobile industries. Many people have to face difficulties in locking/unlocking and switching ON/OFF the car engine upon losing the car key. In addition to that in most of the higher range car, people have to wait for few minutes after turning on the car engine to allow the car engine to attain its normal operating temperature to get better performance of the car engine and improve its life. Moreover, if a car gets stolen and used for some illegal activities banned by the government then a car owner will face many legal hitches. So to tackle all these issues, an electronic system is designed and implemented in a real car that does not provide only car security feature but provides additional features such as unlocking and locking of the car, and switching ON and OFF the car engine remotely using smart phone. This paper basically discusses the technical aspects of such electronic system.
汽车的安全性以及如何跟上汽车技术进步的步伐一直是汽车工业关注的焦点。许多人在丢失车钥匙后,都面临着锁/解锁和开/关汽车引擎的困难。此外,在大多数高续航里程的汽车中,人们在启动汽车发动机后还要等待几分钟,让汽车发动机达到正常的工作温度,以获得更好的汽车发动机性能,提高汽车发动机的寿命。此外,如果一辆车被盗并被用于政府禁止的一些非法活动,那么车主将面临许多法律问题。因此,为了解决所有这些问题,在一辆真正的汽车上设计并实施了一个电子系统,它不仅提供汽车安全功能,还提供其他功能,如解锁和锁定汽车,以及使用智能手机远程打开和关闭汽车引擎。本文主要讨论了该电子系统的技术方面。
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引用次数: 7
Analysis and design of two-phase zero-voltage switching bidirectional dc-dc converter using coupled inductor 采用耦合电感的两相零电压开关双向dc-dc变换器的分析与设计
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894884
Junyoung Chae, Honnyong Cha, Heung-Geun Kim
Recently, multi-phase bidirectional dc-dc converters are widely used in the field of power electronics such as renewable energy systems, hybrid electric vehicles and fuel cell electric vehicles because they have many advantages over singlephase counterparts. The advantages are reduced output current ripple and conduction loss in both switching devices and passive elements. Although output current ripple is reduced significantly due to interleaving effect but the inductor current ripple is not reduced. One of the solutions to this problem is to use coupled inductor. Bidirectional dc-dc converter is able to achieve high efficiency by using negative inductor current for zero-voltage switching. In this paper, two-phase bidirectional dc-dc converter is analyzed and designed for zero-voltage switching by using negative inductor current, which results in less switching loss. Also, a coupled inductor is analyzed and designed for the proposed two-phase soft switching bidirectional dc-dc converter.
近年来,多相双向dc-dc变换器由于具有单相变换器所没有的诸多优点,在可再生能源系统、混合动力汽车和燃料电池汽车等电力电子领域得到了广泛的应用。其优点是减小了开关器件和无源元件的输出电流纹波和传导损耗。由于交错效应,输出电流纹波明显减小,但电感电流纹波没有减小。解决这一问题的方法之一是采用耦合电感。双向dc-dc变换器利用负电感电流进行零电压开关,从而实现了高效率。本文分析并设计了利用负电感电流进行零电压开关的两相双向dc-dc变换器,减小了开关损耗。同时,对所提出的两相软开关双向dc-dc变换器的耦合电感进行了分析和设计。
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引用次数: 6
New series half-bridge converters with the balance input split capacitor voltages 具有平衡输入分路电容电压的新型系列半桥转换器
Pub Date : 2014-09-11 DOI: 10.1080/00207217.2015.1036801
B. Lin, Yu-Bin Nian, H. Chiang, Shang-Lun Wang
A new DC/DC converter is presented for high input voltage and high load current applications. In order to reduce the converter size and achieve high circuit efficiency, MOSFETs with high switching frequency are adopted in the converter. To achieve high circuit efficiency, two half-bridge converters are connected in series to reduce the voltage rating of power switches and asymmetric pulse-width modulation is adopted to control output voltage and achieve zero voltage switching turn-on for all power switches. In order to share the load current and reduce the current rating of rectifier diodes for high output current applications, two center-tapped rectifiers are connected in parallel. The series-connected transformers at high voltage side are used to balance two output inductor currents. Two series capacitors are connected at the AC terminals of two half-bridge converters to balance two input capacitor voltages in every switching cycle. The output capacitances of MOSFETs and the resonant inductances are resonant at the transition instant such that MOSFETs can be turned on at zero voltage switching. Finally, experiments based on a laboratory prototype with 1kW rated power are provided to verify the effectiveness of proposed converter.
提出了一种适用于高输入电压和高负载电流应用的新型DC/DC变换器。为了减小变换器的尺寸,提高电路效率,在变换器中采用了高开关频率的mosfet。为了提高电路效率,将两个半桥变换器串联起来,降低功率开关的额定电压,并采用非对称脉宽调制控制输出电压,实现所有功率开关的零电压开关导通。在高输出电流应用中,为了分担负载电流并降低整流二极管的额定电流,两个中心抽头整流器并联连接。高压侧串联变压器用于平衡两个输出电感电流。在两个半桥变换器的交流端连接两个串联电容器,以平衡每个开关周期的两个输入电容器电压。mosfet的输出电容和谐振电感在跃迁瞬间谐振,使得mosfet可以在零电压开关时导通。最后,在额定功率为1kW的实验室样机上进行了实验,验证了该变换器的有效性。
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引用次数: 7
A study on braking system using fully electric brake system 全电动制动系统的研究
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894930
Hanmin Lee
The braking system maintains a combination of the pneumatic brake and the electrical braking. This system is the major cause of the train noise, and disk brake shoe friction during braking. It causes the environmental pollution. Therefore, this paper presents a way to eliminate environmental pollution such as dust by using the fully electric brake system to zero speed as braking system.
制动系统保持气压制动和电气制动的组合。这种系统是造成列车噪声的主要原因,与盘式制动蹄片在制动过程中产生摩擦。它造成环境污染。因此,本文提出了一种采用全电动制动系统以零速度作为制动系统来消除粉尘等环境污染的方法。
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引用次数: 4
A new current-type magnetically coupled T-source inverter 一种新型电流型磁耦合t源逆变器
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894887
Q. Tran, K. Low, Anh-Vu Ho, T. Chun
This paper presents a new current-type magnetically T-source inverter (CMTSI) which employs a three-winding coupled transformer and a capacitor formed in T-shape to produce a higher current gain in comparison with current-type trans-Z-source inverter (trans-ZSI) and flipped Γ-source inverter (fTSI). The new impedance network exhibits a unique characteristic such that its current gain can be raised not only by increasing the first turn ratio αmT but also by decreasing the second turn ratio βmT of the coupled transformer. Some simulation results are shown to verify the theoretical analysis.
本文提出了一种新型电流型磁t源逆变器(CMTSI),该逆变器采用三绕组耦合变压器和t形电容,与电流型反z源逆变器(trans-ZSI)和翻转Γ-source逆变器(fTSI)相比,具有更高的电流增益。该阻抗网络具有一个独特的特性,即既可以通过增加耦合变压器的第一匝比αmT来提高电流增益,也可以通过降低耦合变压器的第二匝比βmT来提高电流增益。仿真结果验证了理论分析的正确性。
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引用次数: 3
Infrared small target discrimination using sequential forward feature selection with AUC mettric 基于AUC度量的序列前向特征选择红外小目标识别
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6895005
Sungho Kim, Kyung-Tae Kim, So-Hyun Kim
Infrared search and track (IRST) is an important research topic in military applications in surveillance and precise guided missiles. The bottleneck of IRST algorithm is huge number of false alarms in real world applications due to sky cloud, sea-glints, and ground clutters. This paper presents a novel target discrimination method using forward feature selection with area under ROC curve (AUC) metric. Experimental results on real target sequences validate the feasibility of the proposed method.
红外搜索与跟踪(IRST)是侦察和精确制导导弹军事应用中的一个重要研究课题。IRST算法的瓶颈是在现实应用中由于天空云、海面闪烁和地面杂波而产生的大量假警报。提出了一种基于AUC (area under ROC curve)度量的前向特征选择目标识别方法。在真实目标序列上的实验结果验证了该方法的可行性。
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引用次数: 4
Voltage stability modeling and analysis of unbalanced distribution systems with wind turbine energy systems 风电系统不平衡配电系统电压稳定性建模与分析
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894959
M. Abdel-Akher, M. Aly, Z. Ziadi, H. El-kishky, M. Abdel-Warth
This paper presents a new method to asses voltage stability of unbalanced distribution systems with wind turbine generation systems (WTGSs). In the voltage tracing process, the Lagrange linear and quadratic interpolations have been applied to predict voltage magnitudes and phase angles. The predicted solutions are then corrected using the unbalanced three-phase forward/backward power flow solver. The solution process continues until the maximum loading conditions of the system under study are reached. The salient advantage of the method is avoiding construction of massive augmented three-phase Jacobian matrix of the classical Newton-Raphson method. The direct connected WTGSs have been modeled with sufficient details to account for distribution system unbalances and slip variations. Substation transformer tap-setting for voltage regulation is also considered. Voltage collapse scenarios are investigated for unbalanced systems using various unbalanced radial feeders. The results show the robustness of the proposed continuous power-flow method for voltage stability of power distribution networks. Assessment of the obtained results shows that WTGSs of synchronous generator types are more robust than those equipped with induction generators from the point of view of voltage stability.
本文提出了一种新的风力发电系统不平衡配电系统电压稳定性评估方法。在电压跟踪过程中,采用拉格朗日线性插值和二次插值来预测电压幅值和相位角。然后使用不平衡三相正向/反向潮流求解器对预测解进行校正。求解过程一直持续到所研究系统的最大负载条件达到为止。该方法的显著优点是避免了经典牛顿-拉夫森法中大量增广三相雅可比矩阵的构造。直接连接的wtgs已经建立了足够详细的模型,以解释分配系统的不平衡和滑移变化。还考虑了变电站变压器分接调压的设置。研究了采用各种不平衡径向馈线的不平衡系统的电压崩溃情况。结果表明,所提出的连续潮流法对配电网电压稳定具有较好的鲁棒性。对所得结果的评估表明,从电压稳定性的角度来看,同步发电机类型的WTGSs比配备感应发电机的WTGSs更稳健。
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引用次数: 8
New interleaved three-level ZVS converter 新型交错三电平ZVS变换器
Pub Date : 2014-09-11 DOI: 10.1109/ICIT.2014.6894899
B. Lin, Yu-Bin Nian, Chien-Hung Liu
An interleaved three-level DC/DC zero voltage switching (ZVS) converter is presented in this paper. There are two circuit modules in the proposed converter to share the load current and power rating. The interleaved pulse-width modulation (PWM) scheme is adopted to control two circuit modules such that the ripple currents at the input and output sides are reduced. Each circuit module has two three-level DC/DC converters with the same power switches to reduce the voltage stress of each MOSFET at Vin/2 and achieve load current sharing. Thus, the current stress and power rating at the secondary side components are reduced. The current double rectifiers are used at the secondary side to partially cancel the output ripple current. Thus, the sizes of the magnetic components and output filter capacitance are reduced. Due to the resonant behavior by the resonant inductance and resonant capacitance at the transition interval, MOSFETs can be turned on at ZVS under a wide range of load condition and input voltage. The experimental results based on a 1kW prototype are provided to verify the effectiveness of the proposed converter.
提出了一种交错三电平DC/DC零电压开关(ZVS)变换器。在该变换器中有两个电路模块来共享负载电流和额定功率。采用交错脉宽调制(PWM)方案对两个电路模块进行控制,使输入端和输出端的纹波电流减小。每个电路模块有两个三电平DC/DC转换器,具有相同的功率开关,以降低每个MOSFET在Vin/2时的电压应力,实现负载电流共享。这样,二次侧元件的电流应力和额定功率就降低了。在二次侧采用电流双整流器部分抵消输出纹波电流。因此,磁性元件和输出滤波器电容的尺寸减小。由于mosfet在过渡区间的谐振电感和谐振电容具有谐振特性,因此可以在很宽的负载条件和输入电压下在ZVS处导通。最后给出了基于1kW样机的实验结果,验证了该变换器的有效性。
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引用次数: 0
期刊
2014 IEEE International Conference on Industrial Technology (ICIT)
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