基于高速开关阀的转速控制系统建模与仿真  

Modeling and simulation of speed control system based on high-speed on-off valve

作　　者：张庆永[1] 常思勤[2] 

机构地区：[1]湖北汽车工业学院汽车工程系,湖北十堰442002 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《湖南科技大学学报（自然科学版）》2010年第3期24-28,共5页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：汽车动力传动与电子控制湖北省重点实验室(湖北汽车工业学院)开放基金(ZDK201003);湖北汽车工业学院博士科研启动基金(BK201005)

摘　　要：高速开关阀是电液控制系统的新型元件,与计算机接口方便,并有较强抗污能力.设计了一个基于高速开关阀的二次调节转速控制系统,建立了主要元件的数学模型,并得到转速控制系统的状态方程.通过采用脉冲宽度调制(PWM)技术,实现对该系统的转速控制.通过仿真,研究了占空比和阻尼系数对系统响应的影响.并通过试验对仿真结果进行了验证.研究表明:通过改变高速开关阀的PWM信号占空比,可以实现对二次元件的转速控制,且能满足系统的性能要求.High-speed on-off valve is a novel component of electro-hydraulic control system,which has the convenience of interface with computer and the fairly capability of anti-pollution.The secondary adjusting speed-controlling system based on high-speed on-off valve was built up and the corresponding math-models of main components were set up,state function of speed-controlling system was built.PWM(Pulse Width Modulation) was used to realize control of speed.The influence of duty cycle and damping coefficient on system response was studied through simulation.Simulation results are verified through experiments.Studies show that by varying the duty cycle of PWM signals speed-control is realized and system performance can be met.

关 键 词：高速开关阀 转速控制系统 系统建模与仿真 based speed control system 占空比 二次元件 脉冲宽度调制 电液控制系统 计算机接口 阻尼系数 状态方程 系统响应 数学模型 抗污能力 仿真结果 二次调节 PWM信号 验证 性能 

分 类 号：N[自然科学总论]