关键词: 气动位置伺服系统, Takagi-Sugeno模糊模型；模糊控制器

Abstract:

In order to make the pneumatic position servo system adaptable to the variations of the operating positions and payloads, fuzzy control based on Takagi-Sugeno model(shorted as T-S model) was proposed to be used.Taking the pneumatic rotary actuator position servo system with proportional valve as an example,the key techniques to design T-S fuzzy controller for pneumatic position servo
system was studied,including the choice of the premise variables,the division of the subsystems,the definition of the membership functions of premise variables,the design of the local controllers and so on.With the developed T-S fuzzy controller, a lot of experiments had been carried out. Experimental results show that the system has better control performance for any positions within the stroke of the actuator and any payloads in a certain range.

Key words: pneumatic position servo system;Takagi-Sugeno fuzzy model, fuzzy controller