Comparative study of some fractional PI controllers for first order plus time delay systems

摘要

This paper presents a fractional PI controller design method satisfying both time-domain and frequency requirements. Also, the robustness to gain variation is treated. To show the importance of the obtained controller, a comparative study with an existing fractional PI controller tuned by F-MIGO method (Ms constrained integral gain optimization) is done. Some numerical example and an experimental test are given to show the efficiency of the proposed approche.