Direct torque control stability conditions and compensation methods

Veysel T. Buyukdegirmenci, Philip T Krein

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

Abstract

This paper discusses stability conditions of direct torque control (DTC) based on a singular perturbation perspective. Input-output decoupling is discussed and asymptotic-input-output-decoupling is proposed in order to improve erratic DTC performance reported by practitioners. Stability analysis shows that DTC is applicable for low-leakage machines. A detailed mathematical stability analysis and an experimental comparison of conventional DTC and decoupling methods under high speed and high load condition are presented. The results show that asymptotic decoupling compensates for erratic DTC performance with minimal control effort and controller complexity. The improvement trades off voltage headroom for dynamics of torque regulation.

Original languageEnglish (US)
Title of host publication2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Pages107-112
Number of pages6
DOIs
StatePublished - Sep 14 2011
Event2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 - Niagara Falls, ON, Canada
Duration: May 15 2011May 18 2011

Publication series

Name2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011

Other

Other2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
CountryCanada
CityNiagara Falls, ON
Period5/15/115/18/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Buyukdegirmenci, V. T., & Krein, P. T. (2011). Direct torque control stability conditions and compensation methods. In 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 (pp. 107-112). [5994751] (2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011). https://doi.org/10.1109/IEMDC.2011.5994751