It is the typical passive electro-hydraulic force control system. It mainly includes two parts-loading system and driving system.
它是一个典型的被动式电液力控制系统，主要由加载系统和驱动系统两部分组成。
Aiming at the problems as the nonlinear factors and the position disturbance in the electro-hydraulic servo loading system of pumping unit, the conventional control method cant attain perfect effect.
抽油机电液伺服加载系统存在非线性和位置扰动引起的准确度问题，传统的控制方法不能达到理想的效果。
A hybrid control method for passive electro-hydraulic servo loading system was proposed based on new compensation structure and nonlinear PID controller.
研究了基于新型补偿结构和非线性PID控制器的被动式电液伺服加载复合控制方法。
As a typical servo system for simulating various loads in the experiment, the electro-hydraulic loading system is quite a complex machine-electricity-hydraulic multiple system.
由于是一个典型的力伺服系统，而且在仿真实验过程中需要模拟各种载荷的变化情况，电液伺服加载系统是一个相当复杂的机—电—液复合系统。
The electro hydraulic servo loading system of pumping unit is a kind of position disturbance servo loading system, and there are nonlinear uncertain factors and position disturbance in it.
抽油机电液伺服加载系统是一种位置扰动型的施力系统，存在着非线性、不确定因素及由于位置扰动引起的多余力，传统的控制方法不能达到理想的效果。
The electro hydraulic servo loading system of pumping unit is a kind of position disturbance servo loading system, and there are nonlinear uncertain factors and position disturbance in it.
抽油机电液伺服加载系统是一种位置扰动型的施力系统，存在着非线性、不确定因素及由于位置扰动引起的多余力，传统的控制方法不能达到理想的效果。
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