Research on hybrid fuzzy controller and its inference approach
XU Zhen-lin, GUO Xin-hua, WANG Xiu-zhi, LIU Min (School of Electrical Automation and Energy Engineering, Tianjin University, Tianjin 300072,China)
A three-term fuzzy controller was implemented by simply using two-term fuzzy control rules. The fuzzy control rules were generated analytically. The method of fuzzy inference based on phase plane had less computational burden, while the fuzzy inputs could be continuous, which improved the precision. This controller had simpler structure and control algorithms and could be realized on line analytically. The experiment shows that when it is used in AC speed control system, its performance is better than that of PI controller, and the system is much more robust.
【CateGory Index】： TP273.4