基于状态流的一类混杂动态系统仿真方法  

Simulation Method for a Class of Hybrid System Based on Stateflow

作　　者：范辉[1] 张宇文[1] 李文哲[1] 

机构地区：[1]西北工业大学航海学院,西安710072

出　　处：《系统仿真学报》2009年第22期7014-7018,共5页Journal of System Simulation

摘　　要：针对一类使用离散逻辑算法控制连续状态系统的混杂动态系统,应用Simulink仿真中的建模困难和协调连结问题,提出了利用StateFlow模块为离散逻辑系统建模并加入触发机制的解决方案。介绍了StateFlow的建模方法,以鱼雷采用自动调整提前角导引算法的水平面自导仿真为例,详尽叙述了基于StateFlow实现离散逻辑导引算法的具体步骤,建立了鱼雷水平面自导系统Simulink模型,并对整体混杂动态系统进行仿真计算。算例表明,所建立的仿真方法能有效地解决混杂动态系统仿真过程中的同步协调问题,并且简洁高效。Focusing on a class of hybrid system applying discrete logistic arithmetic for continuous system control, the major challenges in the simulation on this type of system are the model difficulty and the problem at correspond connecting. A solution modeling the discrete logistic system based on StateFlow joined with trigger mechanism was provided. The modeling method based on StateFlow block was proposed, and a typical instance that simulation on torpedo homing applying self-correcting ahead angle arithmetic was discussed. The concrete step of the realization of the discrete logistic homing arithmetic based on StateFlow block was described detailedly. A Simulink model of the torpedo homing system was established, and a simulation on the hybrid system was implemented. The result of simulation shows that the solution resolves the problem of synchronal coordination effectively, and it is simple and efficient.

关 键 词：混杂系统 仿真建模 鱼雷自导系统 STATEFLOW 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]