2008 5th International Multi-Conference on Systems, Signals and Devices最新文献

Synthesis of a robust neural input-state feedback controller for nonlinear systems 非线性系统鲁棒神经输入状态反馈控制器的合成

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-09-26 DOI: 10.1109/SSD.2008.4632818

S. Ben Aoun, N. Derbel, H. Jerbi

{"title":"Synthesis of a robust neural input-state feedback controller for nonlinear systems","authors":"S. Ben Aoun, N. Derbel, H. Jerbi","doi":"10.1109/SSD.2008.4632818","DOIUrl":"https://doi.org/10.1109/SSD.2008.4632818","url":null,"abstract":"This paper presents a design approach to hybrid control systems, combining analytical feedback linearization control techniques with neural networks. Such a mixed implementation leads to a more effective control design with improved system performance and robustness. The main objective of integrating neural networks is to overcome the problems with uncertainties in the plant parameters and structure encountered in the analytical model-based design. Shunt DC motor is characterized by complex nonlinear and time-varying dynamics and inaccessibility of some model parameters for on line measurements, and hence can be considered as an important challenging engineering topic. The input-state feedback linearization technique is known for its good results locally in a neighborhood of an operating point. However, these results are sensitive to model parameter variations and so performances may deteriorate. Neural network-based controllers are considered as candidates for this parameters sensitivity. In a first step, an algorithm for analytical exact input-state linearizing control is formulated. The following step is dedicated to the robust neural feedback controller design. A simulation study of these methods is presented. The effectiveness of the neural controller with respect to the analytical one is demonstrated for a large armature resistance variation.","PeriodicalId":267264,"journal":{"name":"2008 5th International Multi-Conference on Systems, Signals and Devices","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128503437","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

Rapid joint semi-blind estimation algorithm for carrier phase and timing parameter 载波相位和时序参数快速联合半盲估计算法

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-27 DOI: 10.1109/ICWMC.2008.68

Yang Jianxi, Wang Yuan, Chu Liang

引用次数: 0

Zero current and zero voltage static error control of a multi-cell dc/dc converter 多单元dc/dc变换器的零电流、零电压静态误差控制

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632813

R. Hamza, M. Feki, B. Robert, A. El Aroudi

{"title":"Zero current and zero voltage static error control of a multi-cell dc/dc converter","authors":"R. Hamza, M. Feki, B. Robert, A. El Aroudi","doi":"10.1109/SSD.2008.4632813","DOIUrl":"https://doi.org/10.1109/SSD.2008.4632813","url":null,"abstract":"In this paper we deal with the control of a two-cell DC/DC buck converter. The design is based on a discrete state space model obtained by expressing current and voltage at the beginning of the (n+1)th period in terms of values of the preceding period. It is shown that the describing model is nonlinear, therefore it is expected that a standard linear controller (e.g. PID) would not be efficient. In this work, we suggest four controllers which are simple to construct. The investigation of their performance is based on linear analysis. The controllers are designed step-by-step where each next controller improves the action of the previous one. The first controller (CI) is found to be the simplest that can lead to a linear closed loop system, hence it can be considered as a simple input-to-state linearizing controller. With the application of CI we can only obtain a correct reference current but the voltage remains uncontrollable. The second controller (C2) is the classic proportional controller. Although, it has remedied the problem of voltage controlling, it resulted in a constant static error of the current. After analyzing the first two controllers, a third controller (C3) is designed to achieve the correct reference values. The only drawback of C3 was the slow convergence of the current to the desired value. The fourth controller (C4) has been finally suggested to circumvent all the crossed drawbacks of the preceding controllers. The efficiency of C4 is shown using numerical simulations. The application onto a real circuit is being carried and results will be published in a future work.","PeriodicalId":267264,"journal":{"name":"2008 5th International Multi-Conference on Systems, Signals and Devices","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125158621","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

Concept of wide tuning QVCO adapted for multi-standards applications 适用于多标准应用的宽调谐QVCO概念

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632799

D. B. Issa, M. Samet, A. Kachouri

引用次数: 0

A distributed workflow management system utilizing computational intelligence for decision support 一个利用计算智能进行决策支持的分布式工作流管理系统

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632898

Z. Muhsin, A. El-Mousa, M. Al-Taee

{"title":"A distributed workflow management system utilizing computational intelligence for decision support","authors":"Z. Muhsin, A. El-Mousa, M. Al-Taee","doi":"10.1109/SSD.2008.4632898","DOIUrl":"https://doi.org/10.1109/SSD.2008.4632898","url":null,"abstract":"Distributed workflow management systems are increasingly gaining momentum due to the emergence of virtual and distributed organizations, as well as cross-organizational workflows. This paper presents an effective development process for a distributed workflow management system (WKFMS) which is utilized to automate the management processes related to computer and peripheral repair requests in the Faculty of Engineering and Technology (FET) at the University of Jordan. First, the paper explores the reasoning and motivation behind the choice of the management processes involved in the WKFMS. Phases of the development process that is based on the rapid prototyping paradigm are then described. Particular focus is given to the modeling of business scenarios using the Model-View-Control (MVC) architecture. The distributed network layout and system security measures are also investigated. Reduction of manual human intervention in the decision process is achieved through the implementation of a neuro-fuzzy computational intelligence processor to automate the major decision making process of tasks distribution. It is shown that the application of the proposed development process helped in reducing the overall system development time and effort. The successful deployment and functional testing of the developed industrial prototype has proved that it works smoothly according to the desired features.","PeriodicalId":267264,"journal":{"name":"2008 5th International Multi-Conference on Systems, Signals and Devices","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114401612","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

Cyclic control of redundatn robot under constraint with the self-motion method 约束下冗余机器人的自运动循环控制

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632821

M. Benzaoui, H. Chekireb

引用次数: 2

The design and simulation of a 400/533Mbps DDR-II SDRAM memory interconnect bus 400/533Mbps DDR-II SDRAM存储器互连总线的设计与仿真

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632797

M. Sharawi, M. Al-Qdah

引用次数: 9

Identification of diffusion processes using fractional non commensurate order models 利用分数阶非相称阶模型识别扩散过程

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632802

T. Djamah, S. Djennoune, M. Bettayeb

引用次数: 0

Behavioral description of quantum V and V+ gates to design quantum logic circuits 量子V和V+门的行为描述以设计量子逻辑电路

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632850

M. Mohammadi, M. Eshghi

引用次数: 12

Some clustering techniques for modelling uncertain nonlinear systems 不确定非线性系统建模的聚类技术

2008 5th International Multi-Conference on Systems, Signals and Devices Pub Date : 2008-07-20 DOI: 10.1109/SSD.2008.4632878

A. Zribi, M. Djemel, M. Chtourou

引用次数: 0