考虑液压系统SAD控制策略的VSL随动性能优化分析

Optimization Analysis of VSL Servo Performance Under the Consideration of SAD Control Strategy of Hydraulic System

液压系统润滑油受系列化可变静载荷(VSL)跟踪性能的影响,提出了一种改进的自湍流(STF)算法。该算法基于液压系统润滑油静压(LOSP)的实时采集和监测来模拟VSL,提出用于LOSP采集的电液伺服(EHS)控制系统的数学模型,设计了STF控制器弄进行数值分析,讨论了EHS系统LOSP的自抗扰(SAD)控制策略,用于二次优化、极点布置、PID和STF控制。通过SIMULINK模块构建了STF控制的LOSP仿真模型,数值模拟结果表明过冲显著降低。提出的SAD控制算法通过实验验证,大大提高了LOSP的采集跟随性和监测精度,通过预先设计的EHS控制系统,可有效稳定调整可变液压LOSP的采集和监控,适用于动力液压流体润滑中。

The hydraulic system lubricating oil is affected by the tracking performance of serial variable static load(VSL).The study proposes an improved self turbulent flow(STF)arithmetic.The arithmetic is based on the real-time collection and monitoring of hydraulic system lubricating oil static pressure(LOSP)to stimulate VSL.The study proposes the mathematics model electro-hydraulic servo(EHS)control system which is used for LOSP collection,does numerical analysis through the design of STF controller,discusses the control strategies of self anti-disturbance(SAD)of LOSP of EHS system for the second optimization,pole allocation,PID and STF control.Through SIMULINK mode,LOSP simulation mode under the control of STF is constructed.Numerical simulation results show that outstanding decreases significantly.Through experiment verification,SAD control algorithm greatly improves the collection following features and monitoring accuracy of LOSP.Preassigned EHS control system can effectively and stably adjust the collection and monitoring of variable hydraulic pressure LOSP,so it appropriate for power hydraulic fluid lubrication.