TY - GEN
T1 - Electro-Hydraulic Proportional Position Control Based On Variable Domain Fuzzy PID
AU - Liu, Yujiang
AU - Peng, Xiwei
AU - Chen, Xin
AU - Guo, Yujie
N1 - Publisher Copyright:
© 2022 Technical Committee on Control Theory, Chinese Association of Automation.
PY - 2022
Y1 - 2022
N2 - To improve the control accuracy and response speed, and the nonlinear characteristics caused by the dead-zone of the valve and the asymmetry and friction force of the cylinder in the electro-hydraulic proportional servo system, the control strategy of variable domain fuzzy PID control and the static dead-zone and asymmetry compensation algorithm are studied. The simulation results show that the variable domain fuzzy PID control can improve the control accuracy and response speed. The experimental results show that the static dead-zone and asymmetry compensation algorithm combined with variable domain fuzzy PID control improves the performance of the position control system of the electro-hydraulic proportional valve controlled hydraulic cylinder; in the square wave tracking experiment, the overshoot is 0 and the steady-state error is 1mm; in the sine wave tracking experiment, the flat top phenomenon and the lag of the commutation point are eliminated, and the maximum error is reduced from 9mm to 4mm; in the triangle wave tracking experiment, the maximum error at the commutation point is 4mm.
AB - To improve the control accuracy and response speed, and the nonlinear characteristics caused by the dead-zone of the valve and the asymmetry and friction force of the cylinder in the electro-hydraulic proportional servo system, the control strategy of variable domain fuzzy PID control and the static dead-zone and asymmetry compensation algorithm are studied. The simulation results show that the variable domain fuzzy PID control can improve the control accuracy and response speed. The experimental results show that the static dead-zone and asymmetry compensation algorithm combined with variable domain fuzzy PID control improves the performance of the position control system of the electro-hydraulic proportional valve controlled hydraulic cylinder; in the square wave tracking experiment, the overshoot is 0 and the steady-state error is 1mm; in the sine wave tracking experiment, the flat top phenomenon and the lag of the commutation point are eliminated, and the maximum error is reduced from 9mm to 4mm; in the triangle wave tracking experiment, the maximum error at the commutation point is 4mm.
KW - Compensation Algorithm
KW - Electro-hydraulic Proportional Servo System
KW - Variable Domain Fuzzy PID control
UR - http://www.scopus.com/inward/record.url?scp=85140470060&partnerID=8YFLogxK
U2 - 10.23919/CCC55666.2022.9902221
DO - 10.23919/CCC55666.2022.9902221
M3 - Conference contribution
AN - SCOPUS:85140470060
T3 - Chinese Control Conference, CCC
SP - 2773
EP - 2778
BT - Proceedings of the 41st Chinese Control Conference, CCC 2022
A2 - Li, Zhijun
A2 - Sun, Jian
PB - IEEE Computer Society
T2 - 41st Chinese Control Conference, CCC 2022
Y2 - 25 July 2022 through 27 July 2022
ER -