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IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society最新文献

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A PDMS microchannel scaffold with microtube electrodes for peripheral Nerve Interfacing 带微管电极的PDMS微通道支架用于周围神经接口
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7048823
Bongkyun Kim, Everardo Ibarra, Alejandro Reyes, Bernardo Garza, Rosalio Luna, Yoonsu Choi
Neural interface devices have been used to retrieve bioelectrical signals from the nervous system to control prosthetics and muscle stimulators. The ability to identify specific electrical signals is important in order to control prosthetics and muscle stimulators. In this paper, we present the Texas peripheral Nerve Interface (TxNI) which combines a PDMS microchannel scaffold with microelectrodes and is designed to retrieve detailed electrical signals (electroneurogram) from the peripheral nervous system. The microchannel is microfabricated using PDMS and commercially available wires. The diameter of scaffold is approximately 2 mm, and the fabricated length of the scaffold can be 10cm or longer. The number of the microchannels, and the diameter of each channel, can be controlled by using different sizes of wire. For the first generation TxNI, commercially available micro wires were used to implement the device efficiently. The second generation TxNI has been further developed, which replaces microwires with gold microtube electrodes. The first generation TxNI has been successfully implanted inside small animals and the bioelectrical signals were captured from the regenerated nerves. The gold microtube electrode of the second generation TxNI was microfabricated using commercially available copper wires and gold electroplating solution. The diameter of gold microtube electrodes can be controlled by using different sizes of wires during the electroplating process; thickness is determined by the duration of the electroplating process. We implemented the gold microtube electrode into individual microchannels so as to retrieve the bioelectric signal from regenerated nerves inside gold microtube electrodes.
神经接口装置已被用于从神经系统检索生物电信号来控制假肢和肌肉刺激器。识别特定电信号的能力对于控制假肢和肌肉刺激器非常重要。在本文中,我们提出了德克萨斯外周神经接口(TxNI),它结合了PDMS微通道支架和微电极,旨在从外周神经系统检索详细的电信号(神经电图)。微通道是用PDMS和市售电线微制造的。支架直径约为2mm,支架的制作长度可达10cm或更长。微通道的数量和每个通道的直径可以通过使用不同尺寸的导线来控制。对于第一代TxNI,商用微线被用来有效地实现器件。第二代TxNI进一步发展,用金微管电极代替微丝。第一代TxNI已成功植入小动物体内,并从再生的神经中捕获生物电信号。第二代TxNI金微管电极采用市售铜线和金电镀液制备。在电镀过程中,可以通过采用不同尺寸的导线来控制金微管电极的直径;厚度由电镀过程的持续时间决定。我们将金微管电极置入单个的微通道中,以获取金微管电极内再生神经的生物电信号。
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引用次数: 1
A power control of three-phase converter with AVFSVC control for high-power induction heating applications 大功率感应加热用的带AVFSVC控制的三相变换器功率控制
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7048972
Sayan Kleangsin, A. Sangswang, S. Naetiladdanon, C. Koompai
This paper presents a three-phase output power control scheme of an induction heating (IH) system using an automatic variable-frequency symmetrical voltage-cancellation (AVFSVC) control technique. The power control is based on the instantaneous output power, filtered and compared with a reference value. The phase angle a is automatically varied depending on the power requirements where the low-power operation is achievable. The high power inverter is operated under zero voltage switching (ZVS) condition by a phase locked loop (PLL) control for maximum overall system efficiency and low switching loss. Calculation and Simulation results are provided in the paper to validate the proposed control method with the output power ranging from 0.024 to 15.63 kW under 15.03 to 16.67 kHz operation frequency.
提出了一种采用自动变频对称电压对消(AVFSVC)控制技术的感应加热(IH)系统三相输出功率控制方案。功率控制是基于瞬时输出功率,经过滤波并与参考值进行比较。相角a根据功率要求自动变化,从而实现低功率操作。高功率逆变器在零电压开关(ZVS)条件下通过锁相环(PLL)控制运行,以获得最大的整体系统效率和低开关损耗。计算和仿真结果验证了所提出的控制方法在15.03 ~ 16.67 kHz工作频率下,输出功率范围为0.024 ~ 15.63 kW。
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引用次数: 3
Performance analysis of a grid-tied inverter for renewable energy applications 可再生能源并网逆变器性能分析
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7049256
A. Al‐Durra, A. Reznik, Marcelo Simoes, S. Muyeen
This paper presents a three phase grid connected DC/AC inverter with active and reactive power (VAR) control for medium size renewable and distributed DC energy sources. The inverter, based on a voltage sourced inverter (VSI) configuration, allows the local residential energy generation to actively supply reactive power to the utility grid, at the same time, this topology allows to work this installation in stand-alone (grid disconnected) mode maintaining nominal and clean voltage at nominal power. A low complexity grid synchronization method was introduced to generate direct and quadrature components of the grid voltage in a simple and computationally efficient manner in order to generate a synchronized current reference for the current loop control. Simulations were performed on Matlab/Simulink platform and a prototype was also developed in the lab to prove the effectiveness of the designed filter, controllers and grid synchronization method. The dSPACE hardware in the loop (HTL) was used, providing a good solution for laboratory implementation.
针对中型可再生和分布式直流能源,提出了一种具有有功和无功控制的三相并网DC/AC逆变器。该逆变器基于电压源逆变器(VSI)配置,允许本地住宅发电主动向公用电网提供无功功率,同时,该拓扑结构允许该安装在独立(电网断开)模式下工作,在标称功率下保持标称和清洁电压。提出了一种低复杂度的电网同步方法,以简单高效的计算方式生成电网电压的直交分量,从而为电流环控制生成同步电流参考。在Matlab/Simulink平台上进行了仿真,并在实验室开发了样机,验证了所设计的滤波器、控制器和网格同步方法的有效性。采用了dSPACE硬件在环(html)技术,为实验室实现提供了良好的解决方案。
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引用次数: 6
Event based robust stabilization of linear systems 基于事件的线性系统鲁棒镇定
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7048489
Abhisek K. Behera, B. Bandyopadhyay
This paper discusses the robust stabilization of a linear time-invariant system based on event triggering strategy. In most practical system, it is not possible to update control in continuous manner, so it is given to plant at some periodic discrete instants only. Recently, the event based control technique for control law update has become popular as it uses the resources efficiently while guaranteeing closed loop system stability. We address here the event based sliding mode control for a linear system in the presence of disturbances and it is shown that the closed loop system achieves stability with respect to measurement errors. The expression for minimum control execution time, where the control law gets updated only after this time interval is also derived. Simulation results are given to verify the theoretical analysis.
讨论了基于事件触发策略的线性定常系统的鲁棒镇定问题。在大多数实际系统中,不可能以连续的方式更新控制,因此只在某些周期离散时刻给予被控。近年来,基于事件的控制技术在保证闭环系统稳定性的同时,有效地利用了控制资源,得到了广泛的应用。我们在这里讨论了一个存在干扰的线性系统的基于事件的滑模控制,并表明闭环系统相对于测量误差实现了稳定性。导出了最小控制执行时间表达式,其中控制律只在此时间间隔后更新。仿真结果验证了理论分析的正确性。
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引用次数: 44
Application of optimal control theory to milling process 最优控制理论在铣削过程中的应用
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7049243
P. Bosetti, F. Biral
A prototype for a supervising controller for machining applications is here proposed. The controller relies on the definition of an optimal control problem that aims at calculating the sequence of controls (feed rate and tool speed) that minimize a multi-objective target function. The target function allows to selectively prioritize terms related to the productivity, energy consumption, tool wear, and surface quality, by individually setting their relative weights (the case of all equal weights represents a balanced optimization.) The implementation of the proposed system on a real machine tool is briefly outlined, and the results of real machining tests are reported and compared to those obtained by typical machining on the same machine tool.
本文提出了一种用于机械加工的监控控制器原型。该控制器依赖于最优控制问题的定义,该问题旨在计算控制序列(进给速度和刀具速度),使多目标目标函数最小化。目标函数允许有选择地优先考虑与生产率、能耗、刀具磨损和表面质量相关的术语,通过单独设置它们的相对权重(所有权重相等的情况表示平衡优化)。简要介绍了该系统在实际机床上的实现,并报告了实际加工试验的结果,并与在同一台机床上进行典型加工的结果进行了比较。
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引用次数: 7
Residential battery energy storage system with 3kWh Li-ion battery pack 3kWh锂离子电池组住宅电池储能系统
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7049354
Seong-Jun Hong, M. Syed, G. Rim, Hyung-Suk Kim
When considering issues such as power shortage, environmental pollution, and dependence on petroleum, a battery energy storage system (ESS) is one of the promising options to overcome these problems. This paper deals with a 3 kW residential battery ESS that consists of a buck/boost power conversion unit, a DC/AC bidirectional conversion unit, and a Li-ion battery pack with a battery management system. In order to connect an ESS to the grid, the system needs to meet requirements such as having a bidirectional power flow, low THD, and anti-islanding. This paper presents an operation scheme and the implementation of a residential ESS. The scheme was experimentally verified on a prototype.
考虑到电力短缺、环境污染、对石油的依赖等问题,电池储能系统(ESS)是克服这些问题的有希望的选择之一。本文研究了一种3kw的家用电池ESS,它由降压/升压电源转换单元、直流/交流双向转换单元和带有电池管理系统的锂离子电池组组成。ESS并网需要满足双向潮流、低THD、防孤岛等要求。本文提出了住宅ESS的运行方案和实现方法。该方案在样机上进行了实验验证。
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引用次数: 1
Designing control loop for PWM converters in dc-to-dc power conversion systems 直流电源转换系统中PWM变换器的控制回路设计
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7049275
Syam Kumar Pidaparthy, B. Choi
This paper presents a methodology to deal with the control design for PWM converters in dc-to-dc power conversion systems. The concept of uncoupled dc-to-dc converter is established, which allows dc-to-dc converters to be designed independently from the source and load impedances. The control design strategy of the uncoupled dc-to-dc converters is formulated to offer good and robust closed-loop performance when the converters are coupled with the actual source and load subsystems. A peak current-mode controlled buck converter is used as an example throughout this paper to verify the proposed control design technique. We compare the control design of the uncoupled dc-to-dc converters with that of the converters coupled with resistive and non-resistive loads. The validity of the conventional design intended for a resistive load is also be discussed.
本文提出了一种处理直流电源转换系统中PWM变换器控制设计的方法。建立了非耦合dc- dc变换器的概念,使dc- dc变换器的设计不受源阻抗和负载阻抗的影响。提出了非耦合dc- dc变换器的控制设计策略,使变换器在与实际源、负载子系统耦合时具有良好的鲁棒闭环性能。本文以峰值电流模式控制降压变换器为例,对所提出的控制设计技术进行了验证。我们比较了不耦合dc- dc变换器的控制设计与耦合电阻和非电阻负载的变换器的控制设计。本文还讨论了用于电阻性负载的常规设计的有效性。
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引用次数: 9
AutomationML for user requirements fulfilment related to engineering process efficiency 自动化用于实现与工程过程效率相关的用户需求
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7049244
Nicole Schmidt, A. Lüder, H. Steininger, S. Biffl
The demand for decreasing time to market poses as major challenge to shorten the engineering process of technical systems. Considering the engineering process from the initial mission to build a technical system through to the final system commissioning, engineering has become increasingly expensive in terms of time and money. The improvement of individual tools and improved interoperability of tools are two common approaches used to help meet this demand. This paper contributes to answering the question of which approach seems to be more advantageous by reporting the results from a questionnaire-based survey. The questionnaire was distributed to experts from a wide range of disciplines with different backgrounds in automation engineering. The experts were asked about the importance of different tool functionalities regarding engineering process phases and activities and by when they expect these functions to be implemented in tools. This paper analyzes the results of the questionnaire focusing on the entire engineering process of technical systems.
缩短产品上市时间的需求对缩短技术系统的工程过程提出了重大挑战。考虑到从最初的任务构建技术系统到最终系统调试的工程过程,工程在时间和金钱方面变得越来越昂贵。改进单个工具和改进工具的互操作性是帮助满足这一需求的两种常用方法。本文有助于回答哪种方法似乎更有利的问题,报告了基于问卷的调查结果。问卷被分发给来自自动化工程领域不同学科背景的专家。专家们被问及关于工程过程阶段和活动的不同工具功能的重要性,以及他们期望何时在工具中实现这些功能。本文以技术系统的整个工程过程为研究对象,对问卷调查结果进行了分析。
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引用次数: 3
Start-stop system for a city bus based on model predictive control 基于模型预测控制的城市客车启停系统
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7049095
Radim Dudek, V. Šmídl, Z. Peroutka
Start-stop system of an internal combustion system of a hybrid drive is designed to reduce energy consumption of the drive and reduce the produced emissions. Effectiveness of the start-stop system heavily depends on its ability to correctly predict when the combustion engine will be idle. This makes the problem suitable for model predictive control. In this contribution, we study the case of a hybrid city bus for which we have available recorded profiles of power consumption from repeated drives of the same route. We propose to use these historical data as predictions of the power consumption in the predictive control approach. We show in simulation with recorded data, that the resulting model predictive start-stop system outperforms the rule based approach and yield fuel savings of 5% and operational cost over 2%.
混合动力传动的内燃系统启停系统旨在降低传动的能耗,减少产生的废气排放。启停系统的有效性在很大程度上取决于其正确预测内燃机怠速的能力。这使得该问题适用于模型预测控制。在这篇文章中,我们研究了一辆混合动力城市巴士的案例,我们有同一路线重复驾驶的电力消耗记录。我们建议在预测控制方法中使用这些历史数据作为功耗的预测。我们通过记录数据进行了仿真,结果表明,该模型预测启停系统优于基于规则的方法,节省了5%的燃料,运营成本超过2%。
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引用次数: 3
Smoke detection on roads for autonomous vehicles 自动驾驶汽车道路上的烟雾探测
Pub Date : 2014-10-01 DOI: 10.1109/IECON.2014.7049111
A. Filonenko, Van-Dung Hoang, K. Jo
This paper describes the smoke detection algorithm for autonomous vehicles equipped with camera and lidar. The main feature is the ability to detect smoke with ego motion of the camera. Color characteristics of smoke are used to detect regions of interest by similarity of pixels between the current frame and the training data. The following metrics are used: red, green, blue, cyan, saturation channels and spatial entropy. Each region of interest is then enhanced by removing small objects and by filling holes. Sky region is removed by checking edge density of the region. Other rigid objects are expelled by the boundary roughness feature. By knowing the fact that smoke tends to change its shape in frame sequence, the angle-radius shape descriptor is introduced. Cross-correlation of this descriptor between regions in consequent frames will show objects with not appropriate behavior. Data from the camera and lidar are fused to make the final decision.
本文介绍了一种用于配备摄像头和激光雷达的自动驾驶汽车的烟雾检测算法。主要特点是能够检测烟雾与自我运动的相机。烟雾的颜色特征通过当前帧和训练数据之间像素的相似性来检测感兴趣的区域。使用以下指标:红、绿、蓝、青、饱和通道和空间熵。然后通过移除小物体和填充孔来增强每个感兴趣的区域。通过检查天空区域的边缘密度来去除天空区域。其他刚性物体被边界粗糙度特征驱逐。通过了解烟雾在帧序列中有改变形状的趋势,引入了角度-半径形状描述符。该描述符在后续帧的区域之间的相互关联将显示不适当行为的对象。来自摄像头和激光雷达的数据被融合以做出最终决定。
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引用次数: 7
期刊
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society
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