An Overview of Methods using Reduced-Ordered Transformation Matrices for Fault-Tolerant Control of 5-phase Machines with an Open Phase

Duc Tan Vu (1) , Ngac Ky Nguyen (1) , Eric Semail (1)

1 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697

This paper studies control strategies using modified transformation matrices when five-phase machines operate in oneopen-phase faults. The basic idea of these methods is to maintain the rotating field under asymmetrical conditions as the same as in healthy condition by determining new transformation matrices. The dimension of the new matrices is equal to the number of remaining healthy phases in post-fault conditions. There have been different ways to determine the new transformation matrices applied for different types of five-phase machines in recent decades. In this study, an overview and analyses on these methods will be presented. In addition, advantages and drawbacks of these control strategies are clarified by numerical results.

Mots clés: Reduced-order transformation mactrices; 5-phase machines; Open-phase faults; Fault-tolerant control; Back-EMF waveform; Current references; Torque control

Domaines: Systèmes et contrôle [cs.SY]; Energie électrique

Duc Tan Vu, Ngac Ky Nguyen, Eric Semail. An Overview of Methods using Reduced-Ordered Transformation Matrices for Fault-Tolerant Control of 5-phase Machines with an Open Phase. 20th IEEE International Conference on Industrial Technology (ICIT 2019), Feb 2019, Melbourne, Australia. pp.1557-1562, ⟨10.1109/ICIT.2019.8755106⟩. ⟨hal-02142425⟩