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最近10年来发展起来的电液比例控制技术新成员——伺服比例阀，实际上是电液比例技术与电液伺服阀的进一步的“取长补短”式的融合。伺服比例阀(闭环比例阀)内装放大器，具有伺服阀的各种特性：零遮盖、高精度、高频响，但其对油液的清洁度要求比伺服阀低，具有更高的工作可靠性。
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电液伺服控制系统多数具有良好的控制性能，并具有一定的鲁棒性，有广泛的应用。电液伺服系统的动态特性是衡量一套电液伺服系统设计及调试水平的重要指标。电液伺服系统由电信号处理装置和若干液压元件组成，元件的动态性能相互影响，相互制约及系统本身所包含的非线性，致使其动态性能复杂，因此，电液伺服控制系统的仿真受到越来越多的重视。
电液技术的不断发展和人们对电液系统性能要求的不断提高，了解电液伺服系统过程中的动态性能和内部各参变量随时间的变化规律，已成为电液伺服系统设计和研究人员的首要任务。在系统工作过程中，主要液压元件的动态响应、系统各部分的压力变化，执行元件的位移和速度等，都是人们非常关心的。6833
Title The modeling and simulation of position control synthesis of an electro-hydraulic servo system
Abstract
Servo-proportional valves is one of the technology-new members which is developed over the past ten years. it was a "draw" type of fusion of electro-hydraulic proportional technology and electro-hydraulic servo valve .Servo-proportional valves (closed-loop proportional valve) have an amplifier inside, has the characteristics of servo valve: zero cover, high precision, high response, but the requirements of its oil cleanliness is lower than the servo valve, with a higher degree of reliability.
Most of electro-hydraulic servo control system with well control performance, have a certain degree of robustness and a wide range of applications.Dynamic characteristic of a electro-hydraulic servo system is a measure of debug level for a design of electro-hydraulic servo system. Electro-hydraulic servo system by signal processing device and a number of hydraulic components, there are interactions between components of dynamic performance, restraint and the system itself contains non-linear, dynamic performance of its complex, therefore, simulation of electro-hydraulic servo control system of received more and more attention.
Because of the continuous development of Electro-hydraulic technology and the continues improvement of requirement on the electro-hydraulic system performance, to understand the dynamics in the process of electro-hydraulic servo system performance and to know various parametric variation over time, has become a primary task for
researchers and for design of electro-hydraulic servo system. In the Working process of a system, major parts of the dynamic response of hydraulic components, the system pressure changes, such as displacement and velocity of the actuator, is that people are very concerned about.
Keywords Proportional valve Electro-hydraulic servo control system simulation based on Matlab/Simulink
1 引言 1
1.1 电液伺服系统的发展与研究现状 1
1.2 电液伺服阀 1
1.3 液压动力机构 2
1.4 电液位置控制系统 2
1.5 PID控制 3
1.6 智能控制 4
1.7 SIMULINK建模与仿真 4
2 零开口四通阀的分析 5
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