全局解析冗余关系的混杂系统模式跟踪

Mode tracking of hybrid system based on GARRs

针对混杂系统同时具有连续和离散的运动规律和演化机制,提出一种基于全局解析冗余关系的混杂系统模式跟踪方法.建立混杂系统键合图模型并转化为诊断键合图模型,根据诊断键合图得到系统的全局解析冗余关系和模式变化特征矩阵.利用模式变化特征向量和开关元件导通与关断时开关两端的电压电流变化特征,实现模式变化了的开关元件定位.最后利用Matlab软件对该方法进行仿真实验,实验结果表明基于全局解析冗余关系的混杂系统模式跟踪方法是有效的.

For the characteristics of hybrid system which contained both motion law and mechanism evolution of continuous and discrete dynamic simultaneously,this paper presented a hybrid system＇s mode tracking method based on global analytical redundancy relations（GARRs）.Bond graph model of the hybrid system was set up and converted to diagnosis hybrid bond graph （DHBG） model.According to the DHBG,GARRs and mode change signature matrix （MCSM） were derived.Using the mode change signature vector and change characteristics of the voltage and current when the switch turned on or turned off,the switching device which caused the modes change was fixed the position.Finally,this method was simulated and analyzed by Matlab software.The feasibility and validity of the new method of mode tracking of hybrid system based on the GARRs were verified.