By theoretical analysis, the closed-loop control system is proved to be semi-global uniformly ultimately bounded (UUB), and the output tracking error converges to a neighborhood of zero.

通过理论分析，证明了闭环控制系统半全局一致终结有界，跟踪误差收敛到零的一个邻域内。

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The results of simulation show that mathematical model of neural networks of electro-hydraulic servo control system has better precision and the algorithm has ability to approximate error of global.

仿真结果辨明：神经网络描述的电液伺服控制系统数学模型具有较高精度，算法全局逼近能力良好。

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