面向方框图仿真的模型建立与仿真计算

Modelling and calculation of the block-diagram oriented simulation

在对高阶系统及非线性系统进行仿真时,需要求解高阶微分方程与非线性微分方程,当中的变量耦合问题较难处理。面向方框图仿真方法可以较好地解决这个问题,仿真计算简单,界面直观,对控制系统的设计起较好的辅助作用。主要介绍面向方框图的仿真模型的建立方法,讨论线性及非线性微分方程的方框图模型,并简单介绍面向方框图的仿真计算和误差分析。

In the simulation of high-order system and non-linear system, to solve the high-order differential equation and nonlinear differential equation is often met. The couple problem of the variables in simulation calculation is very difficult. The block diagram model can solve this problem and it's interface is very direct. And it gives a good help to the design of control system. The modeling method of the block-diagram oriented simulation is introduced in this paper. The modeling of the linear and nonlinear differential equation is discussed here. And the simulating calculation and it's errors is also discussed here.