摘要
基于拉斯变换微分定理,对微分方程组初值问题进行等价变换,从而可建立线性系统和非线性系统数字仿真的统一仿真模型。在此模型中,用线性系统观点解非线性系统,消除了反馈信号偏差计算的步长时滞误差,并可实现对控制系统方框图中具体环节有非零初值系统进行仿真。
Based on differential theorem by laplace transform.It makes transform of equal value to the initial value problems in differential equation.So unified simulation model for linear system and nonlinear system are established.In this model, nonlinear system can be dealt in the view of linear system, which eliminates the step time delay errors of feedback signal deviation and can realize the simulation to control system which has nonzero initial value in specific links of a block diagram.Through a simulation example, it shows that this model has good stability.
