Nonlinear Adaptive Control with Asymmetric Pressure Difference Compensation of a Hydraulic Pressure Servo System Using Two High Speed On/Off Valves

• Published in: Machines (Basel) Vol. 10; no. 1; p. 66
• Main Author: Gao, Qiang
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.01.2022
• Subjects: Accuracy; Adaptive control; Aircraft; asymmetric pressure difference compensation; Asymmetry; Chambers; Charging; Compensation; Control algorithms; Controllers; Design; differential PWM; Discharge; Experiments; Flow velocity; High speed; high speed on/off valve; Hydraulic pressure; hydraulic pressure servo system; Hydraulics; Mathematical analysis; nonlinear adaptive control; Nonlinear control; Parameter uncertainty; Power supply; Pulse duration modulation; Simulation; Tracking; Valves

A hydraulic pressure servo system based on two high-speed on/off valves (HSV) is a discontinuous system due to the discrete flow of HSV when driven by pulse width modulation (PWM) signal. Pressure variation in the testing chamber is determined by the flow rate difference between the charging and dis...