定性代数和图论方法用于连续系统动态定性趋势分析(英文)

作者：张卫华; 吴重光; 王春利

来源：Chinese Journal of Chemical Engineering, 2011, (02): 308-315.

• qualitative algebraic equations
• signed directed graph
• affection equation
• multiple conditions
• dynamic trend analysis

Qualitative algebraic equations are the basis of qualitative simulation,which are used to express the dynamic behavior of steady-state continuous processes.When the values and operation of qualitative variables are redefined,qualitative algebraic equations can be transformed into signed direct graphs,which are frequently used to predict the trend of dynamic changes.However,it is difficult to use traditional qualitative algebra methods based on artificial trial and error to solve a complex problem for dynamic trends.An important aspect of modern qualitative algebra is to model and characterize complex systems with the corresponding computer-aided automatic reasoning.In this study,a qualitative affection equation based on multiple conditions is proposed,which enables the signed di-rect graphs to describe complex systems better and improves the fault diagnosis resolution.The application to an industrial case shows that the method performs well.

• 出版日期2011-4-15
• 单位北京化工大学