The fuzzy adaptive controller designed based on this method can guarantees that the closed-loop system is globally stable and the tracking error converges to a neighborhood of zero.

在此基础上设计的模糊自适应控制器能够保证整个闭环系统稳定且跟踪误差收敛到零的一个邻域内。

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Secondly, the DC voltage loop and inner current closed-loop control method, both to ensure zero static error of the inverter output, but also to ensure that the inverter output waveform.

其次，本文采用直流电压外环、电流内环的双闭环控制方法，既保证了逆变器输出的静态误差为零，又保证了逆变器良好的输出波形。

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This paper gives out a simple and practical method of designing electrohydraulic servo system by using PID plus output feedback to make arbitrary configuration of pole-zero in closed-loop system.

本文给出了一种利用PID加输出反馈来任意配置闭环系统极点和零点的简单实用的电液伺服系统设计方法，仿真设计实例表明了该方法的有效性。

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