Easy and Efficient Tuning of PI Controllers for Electrical Drives

PI controllers are very often used because of their simplicity, but there are frequently poorly tuned. This article discusses and compares the efficiency of three analytical tuning methods for PI or IP controllers. The comparison criteria are the reference following bandwidth and the disturbance rejection versus the open-loop phase margin or the closed-loop peak resonant. The simplicity and the efficiency of the considered approaches are illustrated by the tuning of typical controllers (current and speed loops) for electrical drives