模糊推理的双变量PI控制在航空发动机中的应用

On TwoVariable FuzzyPI Controller for Use in Aeroengine Control System

以某型航空发动机为控制对象，研究了基于模糊推理的双变量模糊控制方法及控制器的特性，为满足航空发动机的控制性能，提出了一种双变量模糊ＰＩ控制算法。

This is another progress report on research work begun in 1984 by Wu Chihua(C.H.Wu) et al . Refs. all dealt with onevariable fuzzy controller and included some response test data of aeroengine control system obtained on aeroengine bed. We now present our research results on twovariable fuzzy control based on fuzzy reasoning. We selected fuzzy control method as it required only simple modeling. But ordinary fuzzy control led to rather large static errors of aeroengine control system. So we, after much exploration, finally decided to propose a new twovariable control algorithm and designed a fuzzyPI controller for a certain aeroengine control system in accordance with such a new algorithm. Simulation results for aeroengine control system with fuzzyPI controller are given in Figs.5 through 8. These results show that: (1) static errors are reduced to the level acceptable to performance requirements of Chinese aeroengine control system; (2) static decoupling achieved is satisfactory; (3) responses of aeroengine control system achieved are satisfactory. Twovariable fuzzyPI control appears to be useful to improving performance of some Chinese aeroengine control systems and serves as a good foundation for solving multivariable problem of Chinese aeroengine control system.