基于非标准替换法的控制系统仿真  

Control System Simulation Based on Non-standard Substituted Method

作　　者：吴汉松[1] 陈少昌[1] 徐袭[1] 王志飞[2] 

机构地区：[1]海军工程大学电气工程系,湖北武汉430033 [2]海军装备部武汉军代局,湖北武汉430060

出　　处：《计算机仿真》2004年第7期72-74,共3页Computer Simulation

摘　　要：该文通过研究控制系统中常用的双线性替换法,发现在应用该方法时微分算子s与位移算子z相互间的关系不变。考虑得到该替换法的推导过程,发现在其进行转化的时候,微分算子与位移算子关系可以是一种变化的形式。应用不同的对应关系对同一表达式进行替换可得到不同的结果,于是提出了一种连续时间控制系统数字仿真的非标准替换法。通过将该方法与标准双线性替换法进行对比仿真计算,仿真结果表明该替换法比双线性替换法具有更强的灵活性与仿真精度。This paper finds out the relationship between the differential coefficient operator s and displacement operator z fixedness when Tustin is implicated through studying the Tustin method of control system. Thinking the deducing process of Tustin and finding the relationship between the differential coefficient operator and displacement operator, we can get different results with different relationships and advance a non-standard substituted method applied on digital simulation of the continuous time control system in this paper. The study indicated that non-standard substituted method which compared with the standard substituted method is more flexible and has higher precision than Tustin method in simulation.

关 键 词：控制系统 数字仿真 位移算子 微分算子 非标准替换法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP391.9[自动化与计算机技术—控制科学与工程]