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Flux-Weakening Operation of Speed-Sensorless Induction Machine Drives using Deadbeat-Direct Torque and Flux Control

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The deadbeat-direct torque and flux control (DB-DTFC) has been studied in recent years for induction machine (IM) drives. The DB-DTFC has the advantages of fast dynamic performance compared to classical field-oriented control (FOC). To achieve stable operation above the base speed, a flux-weakening control with the DB-DTFC is proposed in this paper. The reference flux is reduced by the studied strategy in the flux-weakening region. The DB-DTFC graphically calculate the output voltages with the speed feedback and flux from the full-order observer. The full-order observer can accurately estimate the operating speed, stator and rotor flux linkages. Then, the IM can achieve flux-weakening operation of speed-sensorless with DB-DTFC. The studied DB-DTFC can enhance the voltage utilization compared with the classical FOC. The improvement with flux-weakening strategy is verified by the experimental results from a 3.7kW platform.

Original languageEnglish
Title of host publication2022 International Conference on Electrical Machines and Systems, ICEMS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665493024
DOIs
StatePublished - 2022
Externally publishedYes
Event25th International Conference on Electrical Machines and Systems, ICEMS 2022 - Virtual, Online, Thailand
Duration: 29 Nov 20222 Dec 2022

Publication series

Name2022 International Conference on Electrical Machines and Systems, ICEMS 2022

Conference

Conference25th International Conference on Electrical Machines and Systems, ICEMS 2022
Country/TerritoryThailand
CityVirtual, Online
Period29/11/222/12/22

Keywords

  • deadbeat-direct torque and flux control
  • flux-weakening
  • full-order observer
  • induction machine drives
  • speed-sensorless

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