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Research on the dynamic characteristics of pneumatic proportional regulator in pneumatic-loading system and design of fuzzy adaptive controller

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Science China(Technological Sciences) 2022年第4期65卷 956-965页

作者： WANG Na XU LuYu XIE Fei SHI Yan WANG YiXuan Engineering Training Center Beihang UniversityBeijing 100191China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China Department of Pulmonary and Critical Care Medicine Chinese PLA General HospitalBeijing 100191China

pneumatic proportional control servo regulator is the core component of a pneumatic-loading experimental system,which is very important in solving the overcharging ***,previous research on control of pneumatic proportional regulator in a pneumatic-loading experimental system led to failure in analysis of the influence of opening error of the switch regulator because it did not analyze the regulator basic working principle and *** traditional control method cannot fully solve the overcharging problem nor ensure adequate control performance of the *** seriously studying the working principle and key mechanical parameters of the valve,a fuzzy parameter-adaptive controller is designed by introducing a linear mixture of the pressure and opening errors of the switch regulator to reduce pressure overshoot and optimize its control *** to the fuzzy-control strategy based on the working characteristics and mechanical parameters of the valve,the overshoot phenomenon of the pneumatic-loading system is solved,and the pressure overshoot is *** error of the output air pressure of the regulator is 1.24%,which is *** adjustable pressure range of the regulator is 0.2–0.6 *** maximum deviation is 0.012 *** linearity of the case is 1.34%F.S.

关键词： pneumatic proportional servo regulator pneumatic-loading experimental system mathematical model fuzzy parameter-adaptive controller opening error of the switch regulator

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