摘要
介绍了采用最小二乘法、利用MATLAB软件对摆式车体液压试验台系统进行的辨识与仿真,辨识过程首先将离散系统开环传递函数变换成连续系统的传递函数,再利用得到的传递函数对液压控制系统进行系统仿真。仿真结果与试验台试验结果对比表明,两者几乎相同,说明辨识的传递函数是可信的。
Hydraulic system on the test bench of tilting car body will be identified and simulated with MATLAB and least square method.Firstly,the transfer function of open loop of discrete system will be got,then,it is converted into that of continous system.The control hydraulic system will be simulated with the transfer function.The simulation result is compared with the test result and both results are consistent basically.So the transfer function by identifications is reliable.
出处
《内燃机车》
2010年第12期12-14,36,共4页
Diesel Locomotives
关键词
系统辨识
传递函数
开环
离散系统
连续系统
system identification
transfer function
open loop
discrete system
continuous system
