Automatic learning control-based gain parameter auto-tuning scheme for AC servo system

In this paper, described is an advanced control method of system parameter auto-tuning implementation of AC servo system using fuzzy reasoning logic with automatically learning control function. This control method includes three features; (i) It is not necessary to input some kinds of fuzzy rules to the AC servo system before starting auto-tuning operation. Thus, the fuzzy rules can be automatically produced in learning 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.