CAJ | 학술논문

针对复杂系统定性仿真效率较低的问题,在实体语法系统理论的基础上,为改进定性仿真系统,提出调控流图定性仿真系统,利用以三值量空间为基础的五值量空间,在不增加计算量的前提下解决了调控流图定性仿真中的负反馈问题,利用规则、观测变量的二级约束形式降低了系统多途径调节所产生的不确定性,通过变量与多维空间区域的映射实现利用调控流图对时空复杂性进行定性仿真.通过CSTR系统的定性仿真表明,可用于复杂系统的扰动传播途径预测、复杂系统故障诊断等问题,为复杂系统的建模与定性仿真提供了一种新的技术手段.
침대복잡계통정성방진효솔교저적문제,재실체어법계통이론적기출상,위개진정성방진계통,제출조공류도정성방진계통,이용이삼치량공간위기출적오치량공간,재불증가계산량적전제하해결료조공류도정성방진중적부반궤문제,이용규칙、관측변량적이급약속형식강저료계통다도경조절소산생적불학정성,통과변량여다유공간구역적영사실현이용조공류도대시공복잡성진행정성방진.통과CSTR계통적정성방진표명,가용우복잡계통적우동전파도경예측、복잡계통고장진단등문제,위복잡계통적건모여정성방진제공료일충신적기술수단.
Aiming at the problem that qualitative simulation is inefficient in complex systems,the qualitmive simulation system of regulating flow graph was proposed based on Entity Grammar Systems.The negative feedback loop in the system can be effectively truncated by using a special five-value quantity space.The indetermination of the out put states can be reduced by a two-level filtering system,including rule filter and observed variable filter.The qualitative simulation of the systems in multi-dimensional space can be realized with the mapping from variables to different zones in multi-dimension space.The application of the method on CSTR process indicated that the system can be used for prediction of the interruption transmission pathways and fault diagnosis,which provides a new method for qualitative simulation of complex systems.