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IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society最新文献

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A Demagnetization Circuit for Single-Ended Forward Converter 一种单端正激变换器消磁电路
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460181
S. Changchien, T. Liang, K. Tseng, J. Chen, R. Lin
{"title":"A Demagnetization Circuit for Single-Ended Forward Converter","authors":"S. Changchien, T. Liang, K. Tseng, J. Chen, R. Lin","doi":"10.1109/IECON.2007.4460181","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460181","url":null,"abstract":"This paper presents a novel demagnetization scheme for single-ended forward converter. In the past, many prior transformer core reset methods have been proposed in order to avoid the transformer saturation, such as tertiary transformer winding, RCD clamp, resonant reset, active clamp and two-switch forward topology etc.. However, the lower efficiency, complicated transformer winding structure and the cost of too many added elements are the main drawbacks. In this paper, a novel demagnetization scheme for single-ended forward converter is presented. The proposed demagnetization circuit is very simple and the transformer demagnetization can be reached by adding two diodes and a clamping capacitor. In addition, the transformer design and PWM control circuit for the single-ended forward converter with proposed demagnetization circuit is the same as conventional forward converter. Finally, the operation and circuit performance of the single-ended forward converter with proposed demagnetization circuit are demonstrated with an experimental prototype that delivers a 5 V/10 A output from a 36-72 V input at the maximum efficiency of 88%.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"5 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127010104","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: 10
Asymptotically Stable Walking of a Simple Underactuated 3D Bipedal Robot 简单欠驱动三维双足机器人的渐近稳定行走
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460177
C. Shih, J. Grizzle, C. Chevallereau
{"title":"Asymptotically Stable Walking of a Simple Underactuated 3D Bipedal Robot","authors":"C. Shih, J. Grizzle, C. Chevallereau","doi":"10.1109/IECON.2007.4460177","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460177","url":null,"abstract":"This paper presents a feedback controller that achieves an asymptotically stable, periodic, and fast walking gait for a 3D bipedal robot consisting of 3-links and passive (unactuated) point-feet. The robot has 6 DOF in the single support phase and four actuators. In addition to the reduced number of actuators, the interest of studying robots with point feet is that the feedback control solution must exploit the robot's natural dynamics in order to achieve balance while walking. We use an extension of the method of virtual constraints, a very successful method for planar bipeds, in order to simultaneously compute a periodic orbit and an autonomous feedback controller that realizes the orbit, for a 3D (spatial) bipedal walking robot. This method allows the computations for the controller design and the periodic orbit to be carried out on a 2-DOF subsystem of the 6-DOF robot model. The linearization of the Poincare map of the closed-loop system proves that the achieved periodic walking motion, at a speed of approximately one and a half body lengths per second, is exponentially stable.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126217658","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: 41
Development of a Three-Degrees-of-Freedom Laser Linear Encoder for error measurement of a High Precision Stage 高精度舞台误差测量用三自由度激光线性编码器的研制
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460368
Chien-Hung Liu, W. Jywe, Ming-Shi Wang, Hsueh-Liang Huang
{"title":"Development of a Three-Degrees-of-Freedom Laser Linear Encoder for error measurement of a High Precision Stage","authors":"Chien-Hung Liu, W. Jywe, Ming-Shi Wang, Hsueh-Liang Huang","doi":"10.1109/IECON.2007.4460368","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460368","url":null,"abstract":"The laser linear encoders are widely used as positioning sensor for a precision linear moving stage. In this paper, a Three-Degrees-Of-Freedom Laser Linear Encoder based on diffraction and interference was developed. It can simultaneously measure the linear displacement and two angular errors of a linear moving stage. The displacement is measured using a polarization interference technique and the two angular errors is also measured based on the near-axis optical theorem. This paper has describes a laser linear encoder that can detect displacements relative to an external grating scale with accuracy about 150 nm for a measuring range plusmn1000 mum and can detect angular errors with accuracy about 1 arsec for a measuring range plusmn100 arsecs.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121475651","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: 2
Low Voltage Distribution Transformers: Analysis of the Exposure to ELF Magnetic Fields 低压配电变压器:极低频磁场暴露分析
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460284
Massimo Mitolo, F. Freschi, M. Pastorelli, M. Tartaglia
{"title":"Low Voltage Distribution Transformers: Analysis of the Exposure to ELF Magnetic Fields","authors":"Massimo Mitolo, F. Freschi, M. Pastorelli, M. Tartaglia","doi":"10.1109/IECON.2007.4460284","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460284","url":null,"abstract":"Modern residential, industrial or commercial buildings may be grounded through a system defined as \"TN- Island grounding system\". This is an effective way to protect both persons from shock hazard in installations and to greatly limit electrical interferences among power systems. This earthing system, which is aimed to promote electrical safety, better functionality, and lower costs, utilizes single-phase separation transformers installed in the unit grounded at the mid-point of their secondary side. By introducing a new source of power frequency (i.e. extremely low frequency) magnetic fields into the premises, the presence of such additional pieces of equipment in the environment, might expose persons to their potential adverse health effects, as well as, sensitive electronic equipment disturbances. This paper seeks to clarify this matter by evaluating the ELF magnetic fields, as produced by the user's own equipment and by other units eventually present in the vicinity.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123552315","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: 0
A Design of A Li-ion Battery Duty-Varied Pulse Charger 锂离子电池变差脉冲充电器的设计
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460398
Liang-Rui Chen, C. Huang, Shing-Lih Wu
{"title":"A Design of A Li-ion Battery Duty-Varied Pulse Charger","authors":"Liang-Rui Chen, C. Huang, Shing-Lih Wu","doi":"10.1109/IECON.2007.4460398","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460398","url":null,"abstract":"In this paper, a duty-varied pulse charge strategy (DVPCS), that can detect and dynamically track the optimal duty of the charge pulse, is proposed to improve the battery charge performance. To assess the system performance, a prototype of the duty-varied pulse charger (DVPC) is designed and implemented. Comparing with the standard constant-current and constant-voltage charge strategy, the charge speed of the proposed DVPCS is improved about 14%, while the proposed DVPCS is improved about 5% comparing with the conventional duty-fixed pulse charge strategy (DFPCS). The results indicate that the DVPCS can actually provide pulse with optimal duty to charge the battery and the charge response is improved.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125542838","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: 5
Development of the Nano-Measuring Machine stage 纳米测量机的发展阶段
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460035
W. Jywe, Y. Jeng, Y. Teng, Hung-Shu Wang, Chia-Hung Wu
{"title":"Development of the Nano-Measuring Machine stage","authors":"W. Jywe, Y. Jeng, Y. Teng, Hung-Shu Wang, Chia-Hung Wu","doi":"10.1109/IECON.2007.4460035","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460035","url":null,"abstract":"In this paper, it was successfully developed a nano- measuring machine stage. It was used the features of a flexible structure to develop the nano-measuring machine stage. This stage includes two parts: one is a long range positioning X-Y stage and the other one is a four degrees-of-freedomicro-range stage. The flexible structure of the four degrees-of-freedom micro-range stage was included two kinds of an arc flexible body and a new two degrees-of- freedom flexible body. The micro-range stage was designed to compensate the moving errors such as vertical straightness error, pitch error and roll errors and its all moving range is 20 mm times 20 mm times 11 mum. Precision feedback is provided by the six degrees-of-freedom measuring system with integrating the three plane mirror interferometers and a two degrees-of-freedom angular sensor.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134349673","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: 4
Design and Realization of a Digital Multiphase-Interleaved VRM Controller Using FPGA 基于FPGA的数字多相交错VRM控制器设计与实现
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460300
Yi-Chung Wang, Y. Tzou
{"title":"Design and Realization of a Digital Multiphase-Interleaved VRM Controller Using FPGA","authors":"Yi-Chung Wang, Y. Tzou","doi":"10.1109/IECON.2007.4460300","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460300","url":null,"abstract":"Voltage regulator modules (VRM) are used for low- voltage, high-current dc-dc converters used for high- performance microprocessors and graphic processors. This paper describes the development of a digital PWM controller architecture in applications to multiphase-interleaved VRM A digital current control technique with interleaved PWM generation and synchronous current sampling has been developed to improve the transient response under large load disturbances. The proposed control scheme for the interleaved multiphase buck converter employs feedback signals of output voltage, output current, and per-phase inductor current. By using a synchronous over-sampling technique for the detection per-phase inductor current and double-edge PWM modulation technique, the current response can reach a dead- beat performance for step current command. Current sharing control is used to equalize the current of each phase converter under possible parameters mismatch. A computer simulation study has been carried out to illustrate the feasibility and performance of the proposed digital control technique.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116627846","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: 12
3D Object Tracking Using Mean-Shift and Similarity-Based Aspect-Graph Modeling 使用Mean-Shift和基于相似性的方面图建模的三维目标跟踪
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460296
Jwusheng Hu, T. Su, Chung-Wei Juan, G. Wang
{"title":"3D Object Tracking Using Mean-Shift and Similarity-Based Aspect-Graph Modeling","authors":"Jwusheng Hu, T. Su, Chung-Wei Juan, G. Wang","doi":"10.1109/IECON.2007.4460296","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460296","url":null,"abstract":"The mean shift algorithm is a popular method in the field of 2D object tracking due to its simplicity and robustness over slight variations of lighting condition, scale and view-point over time. However, the appearance of 3D object might have distinctive variations for different viewpoints over time. In this work, a novel method for tracking 3D objects using mean-shift algorithm and a 3D object database is proposed to achieve a more precise tracking. A 3D object database using similarity-based aspect-graph is built from 2D images sampled at random intervals from the viewing sphere. Contour and color features of each 2D image are used for modeling the 3D object database. To conduct tracking, a suitable object model is selected from the database and the mean-shift tracking is applied to find the local minima of a similarity measure between the color histograms of the object model and the target image. The effectiveness of the proposed method is demonstrated by experiments with objects rotating and translating in space.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127534489","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: 5
Maximum Force Control of a Linear Induction Motor Drive 线性感应电机驱动的最大力控制
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4459925
H. Yu, B. Fahimi
{"title":"Maximum Force Control of a Linear Induction Motor Drive","authors":"H. Yu, B. Fahimi","doi":"10.1109/IECON.2007.4459925","DOIUrl":"https://doi.org/10.1109/IECON.2007.4459925","url":null,"abstract":"Linear induction machines (LIM) have shown their advantages in high speed propulsion in a variety of applications, such as military, and transportation. Implementation of vector control to achieve position, speed, and force control in linear induction machines has been a focal area of research for the past decade. However, due to the trailing eddy current effects and magnetic asymmetry effects, vector control can not provide the perfect functionality for LIM as it does for rotary induction machines (RIM). Furthermore, the vector control schemes are relatively complicated. Therefore, searching for an adequate control scheme with ease in implementation and low cost is the motivation of this paper. Using finite element analysis (FEA) the relationship between traction force and different ranges of linear speed and excitation frequencies in motoring, generating, and electromagnetic braking regions has been found. By storing these characteristics in the form of lookup tables which provides excitation frequencies resulting in maximum accelerating and decelerating forces, a closed-loop control scheme incorporating position, speed, and force controls with fast response has been proposed.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114336498","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: 1
Analysis and Design of a Single-Phase Buck-boost Power-Factor-Correction Circuit for Universal Input Voltage 通用输入电压单相降压升压功率因数校正电路的分析与设计
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2007-12-01 DOI: 10.1109/IECON.2007.4460301
L. Yang, T. Liang, J. Chen
{"title":"Analysis and Design of a Single-Phase Buck-boost Power-Factor-Correction Circuit for Universal Input Voltage","authors":"L. Yang, T. Liang, J. Chen","doi":"10.1109/IECON.2007.4460301","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460301","url":null,"abstract":"This paper proposes a single-phase buck-boost power-factor-correction (PFC) circuit for universal input voltage. This converter is operated in discontinuous conduction mode (DCM) by using simple control scheme to achieve voltage step-up/down with unity power factor and low total harmonic distortion of input current (THD1). The proposed converter is suitable for universal input voltage (85 - 265 V) and wide output power range. Moreover, the steady-state analysis of voltage gain, boundary operation condition, selections of inductors and capacitors are presented. Finally, a laboratory prototype is built to verify the theoretical analysis.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128860675","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: 6
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