Control for high momentary torque from vector-controlled induction machines

Veysel T. Buyukdegirmenci, Philip T Krein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper assesses short-term induction motor torque capabilities and investigates field-weakening strategies to provide high momentary torque via vector controllers. Scalar controllers reduce voltage below the base speed to avoid magnetic saturation and do not completely utilize the available dc bus voltage. Vector controllers achieve decoupled control of torque and flux, and can use available dc bus voltage below the base speed without saturating the machine. Compared to maximum torque-per-ampere control, the study aimed to maximize momentary torque limited only by the dc bus voltage. Results for vector controllers show that field-oriented-controlled induction motor drives provide the highest peak torque capability at low speeds, whereas direct torque-controlled drives provide higher peak torque at high speeds. For the test machine, these controllers are shown to support up to 2.5 times the breakdown torque below a critical speed.

Original languageEnglish (US)
Title of host publicationProceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages897-903
Number of pages7
ISBN (Electronic)9781479979417
DOIs
StatePublished - Feb 16 2016
EventIEEE International Electric Machines and Drives Conference, IEMDC 2015 - Coeur d'Alene, United States
Duration: May 11 2015May 13 2015

Publication series

NameProceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015

Other

OtherIEEE International Electric Machines and Drives Conference, IEMDC 2015
CountryUnited States
CityCoeur d'Alene
Period5/11/155/13/15

Keywords

  • Direct Torque Control
  • Field Weakening
  • Field-Oriented Control
  • Induction Motors
  • Maximum Torque-per Ampere Control
  • Momentary Torque Capabilities
  • Motor Drives
  • Peak Duty
  • Variable Speed Drives

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Automotive Engineering

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