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Global Sliding Mode Variable Structure Control Applied to Pneumatic Servo System

机译:全局滑模变结构控制在气动伺服系统中的应用

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The nonlinear friction characteristics in line cylinder pneumatic servo control system are analyzed. The friction can be seen as the disturbance in the global sliding mode variable structure control (SMVSC). The system is robust during the whole response process, by changing controller structure or adjusting control parameters to suppress the disturbance. Numerical simulation shows that the SMVSC scheme has better dynamic and static performance and robustness than that of the PD scheme. Finally, the feasibility of the SMVSC is validated through experiments on the ball & plate XY trajectory pneumatic control system, and it has precise tracking performance.
机译:分析了气缸液压伺服控制系统的非线性摩擦特性。摩擦可以看作是整体滑模变结构控制(SMVSC)中的干扰。通过更改控制器结构或调整控制参数以抑制干扰,该系统在整个响应过程中都很强大。数值仿真表明,与PD方案相比,SMVSC方案具有更好的动,静态性能和鲁棒性。最后,通过在球板XY轨迹气动控制系统上的实验,验证了SMVSC的可行性,并具有精确的跟踪性能。

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