VARIABLE STRUCTURE CONTROL APPLIED IN ELECTRO-HYDRAULIC SERVO SYSTEM WITH ANN
VARIABLE STRUCTURE CONTROL APPLIED IN ELECTRO-HYDRAULIC SERVO SYSTEM WITH ANN
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DOI：
10.3901/cjme.2006.01.032
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Yao;Jianjun;Wang;Xiancheng;Wu;Zhenshun;Han;Junwei
中科院分区：
文献类型：
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作者：
Yao;Jianjun;Wang;Xiancheng;Wu;Zhenshun;Han;Junwei
本文将变结构控制理论应用于电液伺服系统。采用李雅普诺夫方法和极点配置方法得到变结构控制律。为了消除抖振现象，采用饱和函数。所提出的变结构控制方法对负载扰动和系统参数变化具有较强的鲁棒性。针对系统正弦响应中存在相位滞后和幅度衰减等失真问题，提出了基于Adaline神经网络和LMS算法的幅度相位控制（APC）算法。APC控制器结构简单，可在线调整，跟踪精度高。
The variable structure control (VSC) theory is applied to the electro-hydraulic servo system here. The VSC control law is achieved using Lyapunov method and pole placement. To eliminate the chattering phenomena, a saturation function is adopted. The proposed VSC approach is fairly robust to load disturbance and system parameter variation. Since the distortion including phase lag and amplitude attenuation occurs in the system sinusoid response, the amplitude and phase control (APC) algorithm, based on Adaline neural network and using LMS algorithm, is developed for distortion cancellation. The APC controller is simple and can on-line adjust, thus it gives accurate tracking.