Bode-based speed Proportional Integral and notch filter tuning of a Permanent Magnet Synchronous Machine driven flexible system

TL;DR

This paper introduces a Bode-based method for tuning PI controllers and notch filters in PMSM-driven systems, aiming for easy implementation and improved vibration control compared to traditional methods.

Contribution

It presents a simple, practical tuning approach using Bode plots that can be applied in industrial drives without requiring advanced control expertise.

Findings

The proposed method effectively reduces resonance vibrations.

It outperforms conventional tuning techniques in experimental tests.

The approach is easily implementable in existing industrial systems.

Abstract

A resonance and an antiresonance peak characterize many industrial mechanisms dynamics driven by a Permanent Magnet Synchronous Motor (PMSM). The presence of the resonance peak can lead to vibrations and instability of the system. On that account, advanced methods exist to tune the speed Proportional Integral (PI) controller based on adaptive or fuzzy theory. However, those methods require expertise in control theory and are not available in commercial drives. For that, this paper proposes a Bode-based method for PI parameters selection in combination with a notch filter that can be easily set in any industrial drive. The proposed method is compared with conventional tuning methods in a physical setup.