本文推广应用面向结构图的系统仿真方法,建立了一种通用的多变量非线性系统仿真结构。试验证明:基于一阶保持器的这种仿真结构可以满足一般的仿真要求,但是用于高增益反馈系统仿真时,易出现数值发散。为此提出一种基于三角保持器的迭代仿真算法,它可有效地防止数值发散,实现高精度的仿真。 In this paper, the application of structural simulation oriented system is promoted, and a general multivariable nonlinear system simulation structure is established. The experiment proves that this simulation structure based on the first-order retainer can meet the general simulation requirements, but it is prone to numerical divergence when used in high-gain feedback system simulation. For this reason, an iterative simulation algorithm based on triangular retainer is proposed, which can effectively prevent numerical divergence and achieve high-precision simulation.