Control Theory in Engineering [Working Title]最新文献

Experimental Studies of Asynchronous Electric Drives with “Stepwise” Changes in the Active Load 主动负荷“阶梯式”变化异步电传动的实验研究

Control Theory in Engineering [Working Title] Pub Date : 2022-02-03 DOI: 10.5772/intechopen.101864

Vladimir L. Kodkin, Alexandr S. Anikin, Alexandr A. Baldenkov, Natalia A. Loginova

{"title":"Experimental Studies of Asynchronous Electric Drives with “Stepwise” Changes in the Active Load","authors":"Vladimir L. Kodkin, Alexandr S. Anikin, Alexandr A. Baldenkov, Natalia A. Loginova","doi":"10.5772/intechopen.101864","DOIUrl":"https://doi.org/10.5772/intechopen.101864","url":null,"abstract":"The article offers the results of experimental studies of asynchronous electric 10 motors with “squirrel cage” rotor with frequency control. The results of bench tests of the modes of parrying stepwise changes in the load created by a similar frequency-controlled electric drive are presented. A preliminary qualitative analysis of the known control methods is carried out and it is shown that the assumptions made when creating their algorithms in the modes of countering the load become too significant. The reasons for this are the fundamental inaccuracies of the vector equations of asynchronous electric motors with frequency regulation. The proposed interpretation of asynchronous electric motors by nonlinear continuous transfer functions, outlined in the articles written by the same authors earlier, and the corrections they proposed turned out to be more accurate for the operating modes under consideration than the traditional methods of interpretation and correction of the frequency control of asynchronous electric motors This made it possible to assess as objectively as possible the effectiveness of the interpretation of asynchronous electric drives and methods of their regulation. Numerous articles on this topic over the past 25–30 years have not provided such results.","PeriodicalId":426434,"journal":{"name":"Control Theory in Engineering [Working Title]","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132337010","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

An Optimal Control Approach to Portfolio Diversification on Large Cap Stocks Traded in Tokyo Stock Exchange 东京证券交易所大盘股投资组合多元化的最优控制方法

Control Theory in Engineering [Working Title] Pub Date : 2022-01-03 DOI: 10.5772/intechopen.100613

Muhammad Jaffar Sadiq Abdullah, N. Ishak

引用次数: 0

The Fundamental of TCP Techniques TCP技术基础

Control Theory in Engineering [Working Title] Pub Date : 2021-12-29 DOI: 10.5772/intechopen.100850

Pritee Nivrutti Hulule

引用次数: 0

On Parametrizations of State Feedbacks and Static Output Feedbacks and Their Applications 状态反馈和静态输出反馈的参数化及其应用

Control Theory in Engineering [Working Title] Pub Date : 2021-12-02 DOI: 10.5772/intechopen.101176

Y. Peretz

引用次数: 0

Control of Supply Chains 供应链控制

Control Theory in Engineering [Working Title] Pub Date : 2021-10-20 DOI: 10.5772/intechopen.100523

K. Nilakantan

引用次数: 1

Discreteness in Time and Evaluation of the Effectiveness of Automatic Control Systems: Examples of the Effect of Discreteness on Mathematical Patterns 时间上的离散性与自动控制系统有效性的评估:离散性对数学模式影响的例子

Control Theory in Engineering [Working Title] Pub Date : 2020-04-10 DOI: 10.5772/intechopen.91467

V. Kodkin

{"title":"Discreteness in Time and Evaluation of the Effectiveness of Automatic Control Systems: Examples of the Effect of Discreteness on Mathematical Patterns","authors":"V. Kodkin","doi":"10.5772/intechopen.91467","DOIUrl":"https://doi.org/10.5772/intechopen.91467","url":null,"abstract":"Discreteness is one of the fundamental categories in science, philosophy, mathematics, physics, and cybernetics. In the last 50 years, this concept and problem has occupied the minds of many practical engineers. There were situations in which discreteness began to play a major role, for example among the problems obstructing progress in automatic control systems and regarding the transition to digital systems. This chapter discusses the main approaches to the stability analysis of automatic control systems, proposed in fundamental works on the theory of automatic control (TAC). A proprietary approach is proposed, greatly simplifying engineering calculations, with almost no loss of analysis accuracy. It is shown, how this approach allows us to formulate new principles for the construction of seem-ingly well-known regulators — PID regulators and variable structure systems (VSS). In the last part of the chapter, it is proposed to analyze the famous paradoxes of science precisely from the point of view of the discreteness of the variables considered in these paradoxes. It is argued that it is discrete operations (not always correct) that are the causes of these paradoxes.","PeriodicalId":426434,"journal":{"name":"Control Theory in Engineering [Working Title]","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125374743","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

Chattering-Free Robust Adaptive Sliding Mode Speed Control for Switched Reluctance Motor 开关磁阻电机无抖振鲁棒自适应滑模速度控制

Control Theory in Engineering [Working Title] Pub Date : 2020-02-12 DOI: 10.5772/intechopen.91161

M. Namazi, H. Koofigar, Jin-Woo Ahn

{"title":"Chattering-Free Robust Adaptive Sliding Mode Speed Control for Switched Reluctance Motor","authors":"M. Namazi, H. Koofigar, Jin-Woo Ahn","doi":"10.5772/intechopen.91161","DOIUrl":"https://doi.org/10.5772/intechopen.91161","url":null,"abstract":"This study describes an adaptive sliding mode control (ASMC) for the control of switched reluctance motor (SRM). The main objective is to minimize torque ripples with controller effort smoothness while the system is under perturbation by structured uncertainties, unknown parameters, and external disturbances. The control algorithm employs an adaptive approach to remove the need for prior knowledge within the bound of perturbations. This is suitable for tackling the chattering problem in the sliding motion of ASMC. In order to achieve control effort smoothness and more effective elimination of chattering, the algorithm then incorporates proper modifications in order to build a chattering-free robust adaptive sliding mode control (RASMC) using Lyapunov stability theory. A final advantage of the algorithm is that system stability and error convergence are guaranteed. The effectiveness of the proposed controller in improving robustness and minimizing ripples is demonstrated by numerical simulation. Experimental validation is used to demonstrate the efficiency of the proposed scheme. The results indicate that RASMC provides a superior performance with respect to speed tracking and disturbance rejection over the conventional sliding mode control (CASMC) in the face of uncertainties in model and dynamic loads.","PeriodicalId":426434,"journal":{"name":"Control Theory in Engineering [Working Title]","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116469215","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

Web Tension and Speed Control in Roll-to-Roll Systems 卷对卷系统中的卷筒纸张力和速度控制

Control Theory in Engineering [Working Title] Pub Date : 2020-01-24 DOI: 10.5772/intechopen.88797

Jingyang Yan, Xian Du

引用次数: 1

Towards Optimised FPGA Realisation of Microprogrammed Control Unit Based FIR Filters 基于FIR滤波器的微程序控制单元优化FPGA实现研究

Control Theory in Engineering [Working Title] Pub Date : 2019-12-20 DOI: 10.5772/intechopen.90662

Syed Manzoor Qasim, M. BenSaleh, A. Obeid

{"title":"Towards Optimised FPGA Realisation of Microprogrammed Control Unit Based FIR Filters","authors":"Syed Manzoor Qasim, M. BenSaleh, A. Obeid","doi":"10.5772/intechopen.90662","DOIUrl":"https://doi.org/10.5772/intechopen.90662","url":null,"abstract":"Finite impulse response (FIR) filter is one of the most common type of digital filter used in digital signal processing (DSP) applications. An FIR filter is usually realised in hardware using multipliers, adders and registers. Field programmable gate arrays (FPGAs) have been widely explored for the hardware realisation of FIR filters using different algorithms and techniques. One such technique that has recently gained considerable attention is the use of microprogrammed control unit (MPCU) in designing FIR filters. In this chapter, we further explore MPCU technique for optimised hardware realisation of digital FIR filter. To evaluate the performance, two different architectures of FIR filter are designed using Wallace tree multiplier. Both the architectures are coded in Verilog hardware description language (HDL). The performance is analysed by evaluating the resource utilisation and timing reports of Virtex-5 FPGA generated by the Synopsys Synplify Pro tool. Based on the implementation results, as compared to conventional design, Wallace tree multiplier using carry skip adder (CSKA) provides optimal digital FIR filter.","PeriodicalId":426434,"journal":{"name":"Control Theory in Engineering [Working Title]","volume":"595 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126897668","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

Conjugate Gradient Approach for Discrete Time Optimal Control Problems with Model-Reality Differences 具有模型-现实差异的离散时间最优控制问题的共轭梯度法

Control Theory in Engineering [Working Title] Pub Date : 2019-11-22 DOI: 10.5772/intechopen.89711

S. Kek, Sy Yi Sim, W. Leong, K. Teo

引用次数: 2