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Study on Sliding Mode Control with Gray Theory for Electro-Hydraulic Servo System

机译：电液伺服系统灰色理论滑模控制研究

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Uncertainties in the servo system may cause the deterioration of the control quality of the electro-hydraulic servo system, and even lead to its instability. To solve this problem, this paper proposes a sliding model control (SMC) strategy with gray prediction and compensation by making use of gray prediction to identify and compensate parameter perturbation and external disturbance. Given the quality and stability of servo system will be effected by the chartering phenomenon in the SMC, this paper proposes an approach to overcome the chattering a mixed reaching law approach. The proposed control strategy improves anti-disturbance, anti-parameters perturbation capability and reduces the chattering problem. Simulation and experiment indicated that: external disturbance and parameter perturbation of the servo system can be effectively predicted and compensated by the proposed control strategy, and the problem of chattering was also inhibited obviously; the ant interference and anti-parameters perturbation ability, stability and control quality of the system were improved.
机译：伺服系统中的不确定性可能导致电液伺服系统的控制质量劣化，甚至导致其不稳定性。为了解决这个问题，本文提出了一种通过利用灰度预测来识别和补偿参数扰动和外部干扰来提出具有灰色预测和补偿的滑动模型控制（SMC）策略。鉴于伺服系统的质量和稳定性将由SMC的租赁现象实现，本文提出了一种克服喋喋不休的方法的方法。所提出的控制策略提高了抗干扰，反参数扰动能力并减少了抖动问题。模拟和实验表明：可以通过所提出的控制策略有效地预测和补偿伺服系统的外部干扰和参数扰动，并且显然也抑制了喋喋不休的问题;改善了系统的蚂蚁干扰和抗参数扰动能力，稳定性和控制质量。

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