Automatic phase detection of motor-inverter by using vector control with I-f startup for PMSMs

Thumbnail Image

Files

master_Raza_Syed_2025.pdf (6.03 MB)

URL

Journal Title

Journal ISSN

Volume Title

School of Electrical Engineering | Master's thesis
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.

Authors

Date

2025-09-29

Department

Major/Subject

Electrical Power and Energy Engineering

Mcode

Degree programme

Master's Programme in Automation and Electrical Engineering

Language

en

Pages

58

Series

Abstract

This thesis presents an automatic phase connection detection and alignment method for a Permanent Magnet Synchronous Motor (PMSM) drives operating under Field-Oriented Control (FOC) with an I-f startup strategy. The proposed approach addresses the challenge of ensuring correct phase sequence and rotor position alignment without prior knowledge of the motor-inverter phase connection. A comprehensive mathematical and control framework was developed, integrating an open-loop I-f current vectoring startup, which ensures stable flux orientation, with a phase detection system that identify phase displacement. Simulation and experimental results demonstrates stable speed control and accurate torque production across various phase connection sequences, validated on TI DSP C2000 platform with a GaN inverter driving a Teknic servo PMSM. Across all tested scenarios, the system consistently identified phase order and direction and exhibited robust disturbance rejection under load and speed changes. The approach offers a low-cost industrially viable solution independent from phase connection sequence operation, enabling enhanced robustness, dynamic performance.

Description

Supervisor

Belahcen, Anouar

Thesis advisor

Hemeida, Ahmed

Keywords

PMSM, vector control, I-f startup, automatic phase detection, TI C2000 LAUNCHXL-F28379D DSP, TI BOOSTXL-3PhGaNInv

Other note

Citation

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202510208275

Collections

[dipl] Sähkötekniikan korkeakoulu / ELEC