一种改善稳态性能的模糊控制器

A fuzzy controller to improve the steady state performance

针对常规模糊控制存在静差的缺陷 ,提出一种变结构自适应模糊控制器 ,该控制器能够根据控制过程的不同阶段进行变结构控制和自适应控制 ,且不存在平滑过渡问题 ,有效地改善了系统的动态性能并克服了静差 ,为大时滞系统和许多未知模型系统的控制提供了一种新的思路。仿真和实际应用证明了该控制器的有效性。

To overcome the shortcoming that fuzzy control has static error, a variable structure and adaptivefuzzycontrollerisproposed,whichcanproceed with the variable structure control and adaptivecontrolwithoutthesmoothtransitionproblemaccording to the different stages of control process. This controller also improves the performance of the dynamic state and overcomes the static error,whichgivesanewthoughtforthe control of the large time delay system. The emulation and application in intelligent temperature control system prove the effectiveness of the controller.