Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal Injection

A PMSM drive with an incremental encoder or using sensorless control requires alignment to a predetermined rotor position (initial position) or initial rotor position detection at start-up. It is desired to lock the rotor to a known state (usually zero angle) at start-up if the initial rotor positio...

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Main Authors: Salih Baris Ozturk, Omer Cihan Kivanc, Ahmet Aksoz, Omar Hegazy
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/21/7397
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author Salih Baris Ozturk
Omer Cihan Kivanc
Ahmet Aksoz
Omar Hegazy
author_facet Salih Baris Ozturk
Omer Cihan Kivanc
Ahmet Aksoz
Omar Hegazy
author_sort Salih Baris Ozturk
collection DOAJ
description A PMSM drive with an incremental encoder or using sensorless control requires alignment to a predetermined rotor position (initial position) or initial rotor position detection at start-up. It is desired to lock the rotor to a known state (usually zero angle) at start-up if the initial rotor position detection is not available or difficult to obtain. In this work, a simple and proper zero angle initial rotor position alignment of four-switch three-phase (FSTP) inverter-based PMSM drive is proposed. Low-frequency voltage signal is applied to the <i>d</i>-axis voltage reference of the open-loop FSTPI based PMSM drive scheme without requiring complex trigonometric calculations, PI current regulators and current sensing. Therefore, fluctuated capacitor voltages at the DC-link are obtained allowing current flown through phase <i>a</i> locking the rotor with zero angle, properly. The proposed method has been implemented using a low-cost FSTP voltage source inverter (VSI) for PMSM drive with a floating-point TMS320F28335 DSP. The effectiveness and the feasibility of the proposed zero angle initial rotor position alignment method for PMSM driven by FSTP inverter have been demonstrated through experimental results.
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spelling doaj.art-c662d4353c0a419faea0ff888a1cf3832023-11-20T18:04:34ZengMDPI AGApplied Sciences2076-34172020-10-011021739710.3390/app10217397Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal InjectionSalih Baris Ozturk0Omer Cihan Kivanc1Ahmet Aksoz2Omar Hegazy3Department of Electrical Engineering, Istanbul Technical University, Istanbul 34469, TurkeyDepartment of Electrical and Electronics Engineering, Istanbul Okan University, Istanbul 34959, TurkeyMOBI Research Group, ETEC Department, Vrije Universiteit Brussel (VUB), 1050 Brussels, BelgiumMOBI Research Group, ETEC Department, Vrije Universiteit Brussel (VUB), 1050 Brussels, BelgiumA PMSM drive with an incremental encoder or using sensorless control requires alignment to a predetermined rotor position (initial position) or initial rotor position detection at start-up. It is desired to lock the rotor to a known state (usually zero angle) at start-up if the initial rotor position detection is not available or difficult to obtain. In this work, a simple and proper zero angle initial rotor position alignment of four-switch three-phase (FSTP) inverter-based PMSM drive is proposed. Low-frequency voltage signal is applied to the <i>d</i>-axis voltage reference of the open-loop FSTPI based PMSM drive scheme without requiring complex trigonometric calculations, PI current regulators and current sensing. Therefore, fluctuated capacitor voltages at the DC-link are obtained allowing current flown through phase <i>a</i> locking the rotor with zero angle, properly. The proposed method has been implemented using a low-cost FSTP voltage source inverter (VSI) for PMSM drive with a floating-point TMS320F28335 DSP. The effectiveness and the feasibility of the proposed zero angle initial rotor position alignment method for PMSM driven by FSTP inverter have been demonstrated through experimental results.https://www.mdpi.com/2076-3417/10/21/7397permanent magnet synchronous motor (PMSM)four-switch three-phase (FSTP) inverterreduced switch inverterinitial position alignmentsignal injection
spellingShingle Salih Baris Ozturk
Omer Cihan Kivanc
Ahmet Aksoz
Omar Hegazy
Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal Injection
Applied Sciences
permanent magnet synchronous motor (PMSM)
four-switch three-phase (FSTP) inverter
reduced switch inverter
initial position alignment
signal injection
title Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal Injection
title_full Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal Injection
title_fullStr Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal Injection
title_full_unstemmed Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal Injection
title_short Rotor Position Alignment of FSTPI Based PMSM Drive Using Low Frequency Signal Injection
title_sort rotor position alignment of fstpi based pmsm drive using low frequency signal injection
topic permanent magnet synchronous motor (PMSM)
four-switch three-phase (FSTP) inverter
reduced switch inverter
initial position alignment
signal injection
url https://www.mdpi.com/2076-3417/10/21/7397
work_keys_str_mv AT salihbarisozturk rotorpositionalignmentoffstpibasedpmsmdriveusinglowfrequencysignalinjection
AT omercihankivanc rotorpositionalignmentoffstpibasedpmsmdriveusinglowfrequencysignalinjection
AT ahmetaksoz rotorpositionalignmentoffstpibasedpmsmdriveusinglowfrequencysignalinjection
AT omarhegazy rotorpositionalignmentoffstpibasedpmsmdriveusinglowfrequencysignalinjection