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Measurement-based control approach for tuning pid controllers:application to induction machines

Journal of Control and Decision 2016年第3期3卷 179-196页

作者： S.Khadraoui M.A.Fnaiech H.N.Nounou M.N.Nounou J.Guzinski H.Abu-Rub A.Datta S.P.Bhattacharyya Department of Electrical and Computer Engineering University of SharjahSharjahUnited Arab Emirates Department of Electrical Engineering Prince Mohammad Bin Fahd UniversityAl-KhobarKingdom of Saudi Arabia Department of Electrical and Computer Engineering Texas A&M University at QatarDohaQatar Department of Chemical Engineering Texas A&M University at QatarDohaQatar Department of Electrical and Computer Engineering Gdansk University of TechnologyGdanskPoland Department of Electrical and Computer Engineering Texas A&M UniversityCollege StationTXUSA

This paper presents an approach to design proportional-integral-derivative controllers for inductionmachines *** controlmethods developed for induc-tion machines are generally based on mathematical *** to complex dynamics of induction machines,identified models are often unable to perfectly describe their ***,the system performance will be limited by the quality of the identified ***,developing control methods that do not require the availability of system model is ***,we propose an approach that uses the frequency response data to directly design *** main idea here is to find controller parameters so that the closed-loop frequency response fits a desired frequency *** main advantage is that errors associated with the modelling process are ***,the control design process does not depend on the order and complexity of the plant.A practical application to induction machines illustrates the efficacy of the proposed approach.

关键词： measurement-based control pid controllers inductionmachines frequency domain data global optimisation

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Adaptive event-triggered pid controllers for linear discrete-time plants

Adaptive event-triggered PID controllers for linear discrete...

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第三十九届中国控制会议

作者： Hao Yu Zhe Guan Tongwen Chen Toru Yamamoto Department of Electrical and Computer Engineering University of Alberta Data-Driven Smart Systems Collaborative Research Laboratory KOBELCO Construction Machinery Dream-Driven Co-Creation Research Center Hiroshima University Graduate School of Advanced Science and Engineering Hiroshima University

This paper studies adaptive event-triggered pid controllers for 2nd-order linear discrete-time plants for set-point tracking. A new adaptive law is designed by introducing a decay parameter to improve the robustness of the closed-loop *** utilizing the extra robustness, an absolute type of event-triggering conditions is proposed, where the threshold parameter is co-designed with the adaptive laws. Then, the closed-loop system is formulated into a nonlinear interconnected system among the tracking errors, the differences of outputs, and the parameter estimation errors. A rigorous proof of stability is provided to ensure that the tracking error converges to a vicinity of zero when the initial state belongs to some compact sets. Finally,numerical simulations are given to illustrate the efficiency and feasibility of the proposed results.

关键词： Adaptive control event-triggered control linear systems pid controllers

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Further Results on Guaranteed Dominant Pole Placement with pid controllers

Further Results on Guaranteed Dominant Pole Placement with P...

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第三十届中国控制会议

作者： LI Yinya,SHENG Andong,QI Quoqing School of Automation,Nanjing University of Science and Technology,Nanjing 210014,P.R.China

＜正＞In the literature（Journal of Process Control 19（2009）:349-352）,the problem of dominant pole placement with pid controller for a high order or delay system is *** step-by-step systematic design procedures for guaranteed dominant pole placement with pid controller based on root locus and Nyquist plot are proposed,***,we find that,in some cases,the dominance on the transient response of the closed-loop system may degrade since the introduced two closed- loop zeros are close to the pre-selected two dominant poles with the increase of Kp *** handle this problem,the desired region of which all the closed-loop poles lie in except the pre-selected dominant poles is redefined and a special pre-filter is recommended to use at the ***,two alternative dominant poles with critical damping ratio are selected and the corresponding design formulae of pid controllers are *** property of nonovershoot can usually be obtained by our improved *** same examples as those of[1]are used to demonstrate the effectiveness of the improved method.

关键词： pid controllers Dominant Poles Pole Placement Root Locus Nyquist Plot Pre-filter

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Proportional integral derivative controller design using Legendre orthogonal functions

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Journal of Central South University 2016年第10期23卷 2616-2629页

作者： Reza Moradi Mohammad Tabatabaei Department of Electrical Engineering Khomeinishahr Branch Islamic Azad University

The Legendre orthogonal functions are employed to design the family of pid controllers for a variety of plants. In the proposed method, the pid controller and the plant model are represented with their corresponding Legendre series. Matching the first three terms of the Legendre series of the loop gain with the desired one gives the pid controller parameters. The closed loop system stability conditions in terms of the Legendre basis function pole(λ) for a wide range of systems including the first order, second order, double integrator, first order plus dead time, and first order unstable plants are obtained. For first order and double integrator plants, the closed loop system stability is preserved for all values of λ and for the other plants, an appropriate range in terms of λ is obtained. The optimum value of λ to attain a minimum integral square error performance index in the presence of the control signal constraints is achieved. The numerical simulations demonstrate the benefits of the Legendre based pid controller.

关键词： pid controllers orthogonal functions legendre functions moment matching PI controller PD controller

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