Multi-dimension SVPWM-based sensorless control of 7-phase PMSM drives

Saleh, Kamel; Sumner, Mark

Abstract

A new control technique for the 7-phase permanent magnet synchronous machine (PMSM) when a failure in the speed sensor is introduced. This will make the whole drive system more robust and at the same time reduce the cost. The speed and the position of the shaft of the motor are obtained by tracking the saturation saliency of the 7-phase motor when a failure in speed sensor is occurred. The proposed saliency-tracking algorithm is based on measuring the derivative of the stator currents of the 7-phase motor after the switching of the insulated gate bipolar transistor (IGBT) of the 7-phase inverter due to the implementation of the multi-dimension space vector pulse width modulation (SVPWM). This modulation technique is used in the 7-phase drives to suppress the 3rd and 5th harmonics. Simulation results show that the 7-phase motor drive could track the reference speed at different load conditions when a failure in the speed sensor is occurred without compromising the performance.

• Journal Article Type: Article
• Acceptance Date: Nov 2, 2022
• Online Publication Date: Apr 1, 2023
• Publication Date: 2023-04
• Deposit Date: Mar 30, 2023
• Publicly Available Date: Mar 30, 2023
• Journal: Bulletin of Electrical Engineering and Informatics
• Print ISSN: 2089-3191
• Electronic ISSN: 2302-9285
• Publisher: Institute of Advanced Engineering and Science
• Peer Reviewed: Peer Reviewed
• Volume: 12
• Issue: 2
• Pages: 689-703
• DOI: https://doi.org/10.11591/eei.v12i2.4665
• Keywords: Electrical and Electronic Engineering; Control and Optimization; Computer Networks and Communications; Hardware and Architecture; Instrumentation; Information Systems; Control and Systems Engineering; Computer Science (miscellaneous)
• Public URL: https://nottingham-repository.worktribe.com/output/15170089
• Publisher URL: https://beei.org/index.php/EEI/article/view/4665