【摘要】 电液伺服阀被广泛应用各种自动化装备中，这种复杂的机电控制系统集机、电、液、磁于一体，属于重要的随动跟踪控制元件，伺服控制除了有良好的静态性能外，其动力学特性决定了伺服系统工作精度.运用键合图理论建立电液伺服阀的键图模型；推导模型的状态空间方程和输出方程；运用仿真软件MATLAB/Simulink进行了仿真，分析电液伺服阀系统动态特性.最后在搭建的实验验证平台上验证了系统的动态性能，并与仿真结果进行了比较分析.结果是该电液伺服阀的动态特性指标超调量40%、响应时间13ms、上升时间2ms左右.更多还原

【Abstract】 Electro-hydraulic servo valve is widely used in various automation equipment. This complex electromechanical control system integrates mechanical, electrical, hydraulic and magnetic, which is an important control element of follow-up tracking. The servo control has good static performance, and its dynamic characteristics determine the working accuracy of the servo system. The bond graph model of electro-hydraulic servo valve is established by using bond graph theory. The state-space equation and output equation of the model are derived. Simulation software MATLAB/Simulink was used to analyze the dynamic characteristics of the electro-hydraulic servo valve system. Finally, the dynamic performance of the system is verified on the experimental verification platform and compared with the simulation results. The results show that the dynamic characteristic overshoot of the electro-hydraulic servo valve is 40%, the response time is 13ms, the rise time is about 2ms.更多还原