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[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society最新文献

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Maximum power point tracking: a cost saving necessity in solar energy systems 最大功率点跟踪:太阳能系统中节约成本的必要手段
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149286
J. Enslin
{"title":"Maximum power point tracking: a cost saving necessity in solar energy systems","authors":"J. Enslin","doi":"10.1109/IECON.1990.149286","DOIUrl":"https://doi.org/10.1109/IECON.1990.149286","url":null,"abstract":"It is argued that a well-engineered renewable remote energy system utilizing the principal of maximum power point tracking (MPPT) can be cost effective, has a high reliability, and can improve the quality of life in remote areas. A highly efficient power electronic converter for converting the output voltage of a solar panel or wind generator to the required DC battery bus voltage has been realized. The converter is controlled to track the maximum power point of the nput source under varying input and output parameters. MPPT for relatively small systems is achieved by maximization of the output current in a battery charging regulator, using an optimized hill-climbing, inexpensive microprocessor-based algorithm. Through field measurements it is shown that a minimum input source saving of 15% on 3-5 kWh/day systems can easily be achieved.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"54 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114127594","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: 71
A multiple-PC based architecture for global database access 用于全局数据库访问的基于多台pc机的体系结构
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149182
M. Chandwani, P. Dandekar, A. Jain, R. Jain
{"title":"A multiple-PC based architecture for global database access","authors":"M. Chandwani, P. Dandekar, A. Jain, R. Jain","doi":"10.1109/IECON.1990.149182","DOIUrl":"https://doi.org/10.1109/IECON.1990.149182","url":null,"abstract":"An architecture for a number of personal computers (PCs) connected in a hierarchical organization is presented. The objective of the architecture is to provide access to a global database for data sharing. The hardware of the proposed architecture, which includes memory mappings, bus arbiter logic, and PC connections, is described. The architecture is functionally compared with conventional single-bus architectures. The performances are compared in terms of throughput.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117092906","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
Fourier series expansion and DFT on a moving window 傅里叶级数展开和移动窗口上的DFT
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149166
L. Homssi, A. Despujols
{"title":"Fourier series expansion and DFT on a moving window","authors":"L. Homssi, A. Despujols","doi":"10.1109/IECON.1990.149166","DOIUrl":"https://doi.org/10.1109/IECON.1990.149166","url":null,"abstract":"The recursive calculation of Fourier series spectra and the discrete Fourier transform (DFT) on a moving window is investigated. The basic problem is to calculate the spectra coefficients on a one-step-shifted-to-the-right window using the old coefficient values. Several formulas are presented giving the adaptation law of the time-varying spectra. The development in Fourier series expansion can be extended to the case of orthogonal polynomial series.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117133517","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
Robot vision using object models for recognition strategy generation and precise localization 机器人视觉利用目标模型进行识别策略生成和精确定位
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149202
Y. Okamoto, Y. Kuno, S. Okada
{"title":"Robot vision using object models for recognition strategy generation and precise localization","authors":"Y. Okamoto, Y. Kuno, S. Okada","doi":"10.1109/IECON.1990.149202","DOIUrl":"https://doi.org/10.1109/IECON.1990.149202","url":null,"abstract":"A vision system that automatically generates an object recognition strategy from a 3D model and recognizes the object by this strategy is presented. In this system, the appearances of an object from various view directions are described with 2D features, such as parallel lines and ellipses. These appearances are then ranked, and a tree-like strategy graph is generated. It shows an efficient feature search order when the viewer direction is unknown. The object is recognized by feature detection guided by the strategy. After the features are detected, the system compares the line representation generated from a 3D model and the image features to localize the object. Perspective projection is used in the localization process to obtain the precise position and attitude of the object, while orthographic projection is used in the strategy generation process to allow symbolic manipulation.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116264074","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: 3
Master-helper control strategy to robotic systems in tracking an object subject to environmental constraints 机器人系统在环境约束下跟踪目标的主辅助控制策略
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149142
W. Gao, B. Yao
{"title":"Master-helper control strategy to robotic systems in tracking an object subject to environmental constraints","authors":"W. Gao, B. Yao","doi":"10.1109/IECON.1990.149142","DOIUrl":"https://doi.org/10.1109/IECON.1990.149142","url":null,"abstract":"A hierarchical control strategy is developed for robotic systems (multiple robot systems) holding a rigid body to track a given motion in the presence of environmental constraints. A mathematical formulation of the environmental constraints is introduced which is simple enough in many cases. The control is constructed following a master-helper control scheme in which the global controller is realized by a self-organizing algorithm. Simulations show that the tracking errors are negligibly small.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115164226","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
Motor speed regulation using neural networks 利用神经网络进行电机调速
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149310
H. Tai, J. Wang, K. Ashenayi
{"title":"Motor speed regulation using neural networks","authors":"H. Tai, J. Wang, K. Ashenayi","doi":"10.1109/IECON.1990.149310","DOIUrl":"https://doi.org/10.1109/IECON.1990.149310","url":null,"abstract":"An investigation is conducted of the use of the back-propagation neural network for motion control and speed regulation in industrial servo systems. The goal is to build an intelligent controller or regulator which has a versatility equivalent to that possessed by a human operator. The advantages of neural nets lie in that they are flexible in terms of learning and collective processing capabilities. Simulation was performed to demonstrate the feasibility and effectiveness of the proposed scheme. Network performance as a function of the number of hidden units and the number of training samples is addressed.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124811218","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
Computer aided design of relay ladder diagram from functional specifications 根据功能规范设计继电器梯形图
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149196
R. Devanathan
{"title":"Computer aided design of relay ladder diagram from functional specifications","authors":"R. Devanathan","doi":"10.1109/IECON.1990.149196","DOIUrl":"https://doi.org/10.1109/IECON.1990.149196","url":null,"abstract":"The author describes two complementary software programs, called PROLOC and AILISTD, which make up a high-level computer-aided design package that transforms functional specifications into relay ladder design for direct implementation in a programmable logic controller (PLC). AILISTD uses artificial-intelligence techniques to transform the functional specifications into a state transition diagram (STD) representation. PROLOC then translates the STD specifications into relay ladder design for programming into a PLC. A laboratory example involving a liquid level control system illustrates the use of both programs.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122907479","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
Prediction based DC servo control system in robotic arm 基于预测的机械臂直流伺服控制系统
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149154
H. Hashimoto, O. Kaynak, H. Kuroyanagi, Y. Deguchi, F. Harashima
{"title":"Prediction based DC servo control system in robotic arm","authors":"H. Hashimoto, O. Kaynak, H. Kuroyanagi, Y. Deguchi, F. Harashima","doi":"10.1109/IECON.1990.149154","DOIUrl":"https://doi.org/10.1109/IECON.1990.149154","url":null,"abstract":"Two approaches to the accurate trajectory control of a robotic arm with payload are presented. One is the fixed parameter algorithm and the other is the self-tuning algorithm. Both methods use an ARMA (autoregressive moving average) process model. In the first method the model is fixed and in the second the model parameters are tuned online. These techniques are based on long-range position prediction and can easily be implemented in real-time systems because of their simplicity. Simulation results of a one-degree-of-freedom DC motor servo system indicate that these algorithms, especially the self-tuning one, are effective for position control of a robotic arm.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125243312","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
Sliding mode-a new way to control series resonant converters 滑模控制——串联谐振变换器的一种新方法
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149265
F. Boudjema, J. Abatut
{"title":"Sliding mode-a new way to control series resonant converters","authors":"F. Boudjema, J. Abatut","doi":"10.1109/IECON.1990.149265","DOIUrl":"https://doi.org/10.1109/IECON.1990.149265","url":null,"abstract":"The application of the theory of variable structure control systems for the control of resonant DC-DC converters is illustrated. The full-bridge configuration of series-resonant converters (SRCs) is used. The converter is operated at resonant frequency to obtain both output-to-input voltage characteristics similar to those of the buck converter and high efficiency. To arrive at an exact mathematical model, the SRC is viewed as a piecewise linear system. However, under some approximations and a suitably selected set of state variables, the SRC is characterized by a linear continuous-time model which allows determination of the equivalent control via the sliding mode control (SMC) theory. To obtain a sliding regime, the appropriate sliding surface is selected by assigning poles. This control law constitutes a new approach to the control of resonant DC-DC converters.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125319132","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: 22
Study of negative bias on the IGBT's gate IGBT栅极负偏置的研究
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI: 10.1109/IECON.1990.149288
A. Sandali, A. Jaafari, J. Picard
{"title":"Study of negative bias on the IGBT's gate","authors":"A. Sandali, A. Jaafari, J. Picard","doi":"10.1109/IECON.1990.149288","DOIUrl":"https://doi.org/10.1109/IECON.1990.149288","url":null,"abstract":"A negative gate bias during the IGBT's (insulated gate bipolar transistor's) turn off modifies the switching parameters. This effect is highlighted and analyzed. Unlike the MOS transistor, the IGBT's turn-off behavior at high frequency with negative gate bias shows a strong inversion layer at the oxide-n-semiconductor interface. A simplified model is used to show the improvements in delay time and current and voltage switching speeds brought about by the negative gate bias. The negative bias can reduce the turn-off losses by 25%.<<ETX>>","PeriodicalId":253424,"journal":{"name":"[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129546376","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
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