| DYNAMIC HUNTING EXTREMUM CONTROL METHOD BASED ON MEASURE AND ESTIMATION |
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| 作者姓名： | 胡军 刘文江 李嘉 叶道骅 |
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| 作者单位： | Faculty of Automation & Control，Xi'an Jiaotong University，Xi'an 710049，China，Faculty of Automation & Control，Xi'an Jiaotong University，Xi'an 710049，China，Faculty of Automation & Control，Xi'an Jiaotong University，Xi'an 710049，China，Faculty of Automation & Control，Xi'an Jiaotong University，Xi'an 710049，China |
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| 基金项目： | ThisworkwassupportedbytheNationalScienceFoundationofChina(No .6 0 1 74 0 30)andtheNationalEducationMinistryDoctorResearchFoundation (No .2 0 0 1 0 6 980 0 1 ) |
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| 摘 要： | Anextremumcontrolsystembasedoncommonhuntingmethods1 ] cannotworkwellforindustrialprocesses:becauseofthesysteminertialandtimedelayinfluences,thesystemwillbecomeoscillat ing ,workinwrongstepsorwillbehuntingforalongtimefortheworking process.Thepreviousmethod2 ] canonlyapplytothesystemthathasafastdynamicprocessoritsdynamicresponsecanbeignored .Thispaper proposedadynamichuntingmethod differencepre estimationandcomparisonmethod .Thismethodcanbeusedinsecond orderorhighordersystemswithlargetimecons…
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DYNAMIC HUNTING EXTREMUM CONTROL METHOD BASED ON MEASURE AND ESTIMATION |
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| Hu Jun,Liu Wenjiang,Li Jia,Ye DaoHua Faculty of Automation & Control,Xi'an Jiaotong University,Xi'an ,China..DYNAMIC HUNTING EXTREMUM CONTROL METHOD BASED ON MEASURE AND ESTIMATION[J].Academic Journal of Xi’an Jiaotong University,2003,15(2). |
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| Authors: | Hu Jun Liu Wenjiang Li Jia Ye DaoHua Faculty of Automation & Control Xi'an Jiaotong University Xi'an China |
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| Institution: | Faculty of Automation & Control, Xi'an Jiaotong University, Xi'an 710049, China |
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| Abstract: | Objective To propose a dynamic hunting extremum control method based on comparison of the estimated value and measured value. Methods The output linear group of the system is approximately expressed as an nth order system with large time constant or with time delay. Moreover, the relation between input drive reversal of the logic circuit and dynamic output of the system is analyzed in detail. The calculating formulae for the drive reversal are given for different extremum control systems. Based on principles above, a controller using a micrprocessor and a testing laboratory plant were designed and implemented. Results With this new method, the controller achieves fast optimum point hunting process, good performance in extremum control systems for high order processes, and robust result under sudden change or drift of the extremum characteristics. Conclusion The new control owns the merits of rapid optimizing dynamics, robusticity, and wide applicability. |
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| Keywords: | dynamic hunting extremum control optimal control |
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