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A novel interactive preferential evolutionary method for controller tuning in chemical processes

Chinese Journal of Chemical Engineering 2015年第2期23卷 398-411页

作者：宿翀李宏光 Beijing University of Chemical Technology

In response to many multi-attribute decision-making(MADM)problems involved in chemical processes such as controller tuning,which suffer human's subjective preferential nature in human–computer interactions,a novel affective computing and preferential evolutionary solution is proposed to adapt human–computer interaction *** on the stimulating response mechanism,an improved affective computing model is introduced to quantify decision maker's preference in selections of interactive evolutionary *** addition,the mathematical relationship between affective space and decision maker's preferences is ***,a human–computer interactive preferential evolutionary algorithm for MADM problems is proposed,which deals with attribute weights and optimal solutions based on preferential evolution *** exemplify applications of the proposed methods,some test functions and,emphatically,controller tuning issues associated with a chemical process are investigated,giving satisfactory results.

关键词： Preference Affective computing Interactive evolutionary computation Multi-attribute decision-making controller tuning

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tuning Method of Proportional Differential controller for Delay-time System Based on Polynomial Approximation

Tuning Method of Proportional Differential Controller for De...

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第26届中国控制与决策会议

作者： Ling Xu Feng Ding Dengfeng Liu Baoguo Xu School of Internet of Things Engineering Jiangnan University School of Internet of Things Technology Wuxi Institute of Commerce

This paper proposes a design method of the proportional integral derivative controller. The controller is used to a delay-time system. A polynomial approximation method is studied to the delay-time system. The controller is designed based on the approximation model and used to the delay-time system. Some numerical examples are illustrated to show the effective of the proposed method.

关键词： Proportional Differential controller controller tuning Polynomial Approximation

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tuning and implementation variants of discrete-time ADRC

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Control Theory and Technology 2023年第1期21卷 72-88页

作者： Gernot Herbst Rafal Madonski University of Applied Sciences Zwickau ZwickauGermany Energy and Electricity Research Center Jinan UniversityGuangzhouChina

Practical implementations of active disturbance rejection control(ADRC)will almost always take place in discretized *** applications may have quite different needs regarding their discrete-time controllers,this article summarizes and extends the available set of ADRC implementations to provide a suitable variant for as many as possible use *** doing so,the gap between quasi-continuous and discrete-time controller tuning is closed for applications with low sampling *** main contribution of this article is the derivation of three different discrete-time implementations of error-based *** is shown that these are almost one-to-one counterparts of existing output-based implementations,to the point where transfer functions and coefficients can be reused in unaltered *** this way,error-based implementations become firmly rooted in the established landscape of discrete-time ***,it becomes possible to equip error-based variants with windup protection abilities known from output-based ADRC.

关键词： Active disturbance rejection control(ADRC)-Error-based form controller tuning Discretization

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Data-Driven Model Identification and Control of the Inertial Systems

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Intelligent Control and Automation 2023年第1期14卷 1-18页

作者： Irina Cojuhari Department of Software Engineering and Automatics Technical University of Moldova Chisinau Republic of Moldova

In the synthesis of the control algorithm for complex systems, we are often faced with imprecise or unknown mathematical models of the dynamical systems, or even with problems in finding a mathematical model of the system in the open loop. To tackle these difficulties, an approach of data-driven model identification and control algorithm design based on the maximum stability degree criterion is proposed in this paper. The data-driven model identification procedure supposes the finding of the mathematical model of the system based on the undamped transient response of the closed-loop system. The system is approximated with the inertial model, where the coefficients are calculated based on the values of the critical transfer coefficient, oscillation amplitude and period of the underdamped response of the closed-loop system. The data driven control design supposes that the tuning parameters of the controller are calculated based on the parameters obtained from the previous step of system identification and there are presented the expressions for the calculation of the tuning parameters. The obtained results of data-driven model identification and algorithm for synthesis the controller were verified by computer simulation.

关键词： Data-Driven Model Identification controller tuning Undamped Transient Response Closed-Loop System Identification PID controller

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