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对电液控制系统进行最优控制,进行极点配置以及其它许多控制形式,都必须采取系统状态反馈的形式,但是往往得不到系统的所有状态,因此就要采用状态估值器来得到状态的估值,进而实现所要求的控制规律。鉴于电液系统的特点,本文采用龙伯格观测器进行降维状态估值,该装置已应用在材料试验机的电液力控制系统中,并得到满意的结果。
Optimal control of the electro-hydraulic control system, pole placement, and many other forms of control must take the form of system state feedback, but often not all of the state of the system, it is necessary to use the state estimator to get the state Valuation, and then to achieve the required control laws. In view of the characteristics of electro-hydraulic system, this paper adopts the Lungerberg observer to estimate the state of dimensionality reduction. The device has been applied to the electro-hydraulic control system of the material testing machine, and the satisfactory results are obtained.