非线性未建模不确定系统的自适应控制

A KIND OF FAILURE DIAGNOSIS METHOD FOR LARGE SYSTEM BASED ON ITERATION OF FUNCTION SPACE IN DYNAMIC PROGRAMMING

讨论了非线性未建模不确定系统的自适应镇定问题．通过边界层分析的方法，提出了一种简单的间接自适应控制方法．该方法克服了现有非线性自适应控制方法容易产生过渡控制的缺点．

In this paper,a kind of failure diagnosis method for large system based on iteration of function space in dynamic programming is proposed.First, a new concept about minimum of coefficient product of routes from source state to target state is put forth and an algorithm is given in order to track down this minimum as well as correspondent route. Then, the algorithm is changed into a tabular iteration method which is simpler, more regular and helpful for programming. Third, this concept and this algorithm are applied to failure diagnosis of system and steps of diagnosis are detailed. In the end of this paper, this method is shown to be more effective and simpler by simulation of a pump system failure diagnosis.