TY - GEN
T1 - Research on Fuzzy Sliding Mode Electro-hydraulic Proportional Servo Control System under Negative Load Conditions
AU - Xiaoxing, Feng
AU - Yuxin, Bai
AU - Yujiang, Liu
AU - Ze, Li
AU - Weidong, Mei
AU - Peng, Ji
AU - Xiwei, Peng
N1 - Publisher Copyright:
© 2024 Technical Committee on Control Theory, Chinese Association of Automation.
PY - 2024
Y1 - 2024
N2 - Aimed at the error caused by spool dead-zone and cylinder asymmetry in proportional valve-controlled asymmetric hydraulic cylinder control, a fuzzy sliding mode controller with variable dead-zone compensation is designed, and the control accuracy and stability of this controller under no-load and negative load conditions are studied. The simulation results show that the sliding mode control method with variable dead-zone compensation can reduce the tracking errors and hysteresis caused by the dead-zone characteristics of the spool and the asymmetry of the cylinder. In the no-load test, the maximum tracking error of sliding mode control method with variable dead-zone compensation is ±5 mm, while the maximum tracking error of fuzzy sliding mode control method with variable dead-zone compensation is ±2.5 mm. In the negative load test, by adding the counterbalance valve, the problem of shaking when the piston rod extends under the negative load of 20 kg is solved.
AB - Aimed at the error caused by spool dead-zone and cylinder asymmetry in proportional valve-controlled asymmetric hydraulic cylinder control, a fuzzy sliding mode controller with variable dead-zone compensation is designed, and the control accuracy and stability of this controller under no-load and negative load conditions are studied. The simulation results show that the sliding mode control method with variable dead-zone compensation can reduce the tracking errors and hysteresis caused by the dead-zone characteristics of the spool and the asymmetry of the cylinder. In the no-load test, the maximum tracking error of sliding mode control method with variable dead-zone compensation is ±5 mm, while the maximum tracking error of fuzzy sliding mode control method with variable dead-zone compensation is ±2.5 mm. In the negative load test, by adding the counterbalance valve, the problem of shaking when the piston rod extends under the negative load of 20 kg is solved.
KW - Dead-zone Compensation
KW - Electro-hydraulic Proportional Servo System
KW - Fuzzy Control
KW - Sliding Mode Control
UR - http://www.scopus.com/inward/record.url?scp=85205475253&partnerID=8YFLogxK
U2 - 10.23919/CCC63176.2024.10662663
DO - 10.23919/CCC63176.2024.10662663
M3 - Conference contribution
AN - SCOPUS:85205475253
T3 - Chinese Control Conference, CCC
SP - 2953
EP - 2958
BT - Proceedings of the 43rd Chinese Control Conference, CCC 2024
A2 - Na, Jing
A2 - Sun, Jian
PB - IEEE Computer Society
T2 - 43rd Chinese Control Conference, CCC 2024
Y2 - 28 July 2024 through 31 July 2024
ER -