Abstract

Background: In this paper, experimentation fault-tolerant control for permanent magnet synchronous motor drive system using the direct torque control technique is presented.

Methods: Synchronous machine drive system requires uninterrupted and more secure conditions during operations.

Results: Therefore the diagnostic of voltage source inverter and synchronous motor faults are needed for improving system availability.

Conclusion: This article aims to propose an accurate open-phase fault detection and fault-tolerant inverter of a permanent magnet synchronous motor using direct torque control technique. Experimental implementation is carried out on powerful dSpace DS1104. The validity of the proposed method has been experimentally verified.

Keywords: Current signature analysis, Direct Torque Control (DTC), fault tolerant inverter, open phase fault, Permanent Magnet Synchronous Motor (PMSM).

Graphical Abstract