Electro-hydraulic servo valve is widely used in various automation equipment.This complex e-lectromechanical control system integrates mechanical,electrical,hydraulic and magnetic,which is an impor-tant 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 ex-perimental 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.
关键词
电液伺服阀/MATLAB/Simulink/建模与仿真/动态性能/试验
Key words
Electro-hydraulic servo valve/MATLAB/Simulink/modeling and simulation/dynamic per-formance/testing
维普
万方数据