Automatic learning control-based auto gain parameter tuning DC brushless servo motor drive systems

In this paper, described is an advanced control method of system parameter auto-tuning implementation for AC servo system using fuzzy reasoning logic with automatically learning control function. This method includes three features; (i) It is not necessary to input some kinds of fuzzy rules to the servo system before starting auto-tuning operation. Thus, fuzzy rules can be automatically produced in learning logical process. (ii) Any knowledge and information about system parameter tuning technique are not required. (iii) Both high speed response and robustness can be obtained. The feasible effectiveness of this auto-tuning processing approach for AC servo system are practically confirmed through experimental results.