基于MATLAB的高速公路隧道通风控制系统仿真研究

Research on Simulation of Highway Tunnel Ventilation Control System based on MATLAB

高速公路长大隧道的通风控制具有非线性及大滞后等问题,运用传统控制方法已不能满足系统的精度要求;因此,提出采取RBF-PID控制方法,通过RBF神经网络整定PID控制器的参数,以达到要求的控制指标。运用MATLAB仿真软件,分别建立基于传统PID控制器和RBF-PID控制器的系统模型,并进行仿真对比。结果表明,RBF-PID控制器比传统的PID控制器对系统输入的响应更加精确,具有最大绝对误差值较小和无负误差的优点,能更有效地解决高速公路长大隧道的通风控制非线性及大滞后的问题。

The highway tunnel longitudinal ventilation has the problems of nonlinear and large lag,the traditional control methods can not meet the accuracy requirement of the system.So it is proposed to use RBF-PID controller to adjust the parameters of PID for getting the precise output.System model based on traditional PID control and RBF-PID controller was built by using MATLAB,and comparing simulation was down.Simulation results indicated that RBF-PID controller is more precision to input response and can solve the problems of the nonlinear and large lag characters more efficiently than the conventional PID controller.