直接自适应模糊算法参数的选取以及仿真分析

Parameters Selecting Of Direct Adaptive Fuzzy Control And Simulation

针对Wang[1]提出的直接自适应模糊控制器,首次推导出了自适应律参数γ以及仿真步长h的理论取值范围。以一阶不稳定系统、二阶达芬振荡系统为例,给出了当γ以及h取不同值时的仿真结果,通过对结果的分析,验证了前面推导出的参数取值范围的正确,并得出有关参数γ变化对系统性能影响的规律。

According to the direct adaptive fuzzy controller which was proposed by Wang , the formulas of bounds of adaptation law coefficient γand simulation step h were deduced for the first time. A first order system and a second order system were simulated as two examples, and the simulations were given with different γand h. The simulation results prove the parameters＇ ranges are right, otherwise the rules that the performance is influenced by these two parameters are concluded.