【摘要】 本文对基于PWM控制方式的高速开关阀式电液伺服系统进行了仿真研究。分析了系统的结构框图和工作原理 ;建立了系统的非线性时域仿真模型 ;重点研究了调制频率fp 和阀的开关特性对系统控制性能的影响。仿真结果证明了本文有关观点的正确性更多还原

【Abstract】 The electrohydraulic servo system based on PWM control mode is studied by simulation, which is composed of the high-speed on-off valves in this thesis The block diagram of the system and its working principle are analyzed, and a nonlinear simulating model in time response is established Then the research work is focused on the influence of the modulating frequency f p and the switching characteristics of the valve on the system’s controlling performances The results of simulation prove some viewpoints in the paper更多还原