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A new approach to estimated rotor position for PMSM based on sliding mode observer

  • Harbin Institute of Technology

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

Abstract

Most methods to estimate the rotor position of permanent magnetic synchronous motor (PMSM) suffer from the motor parameter, which are difficult to be applied due to the complicated algorithm. This paper presents a new approach to estimate the rotor position of PMSM based on the sliding mode observer (SMO). The SMO makes use of the error between the estimated current and measurement current. Back-EMF is obtained by the low pass filter (LPF). The rotor angle can be a close-loop system in order to improve accuracy and reduce system noise. The rotor position is obtaind by the direct integration of the estimated rotor speed. The error due to the pure integration is elimininated by a novel way. The convergence of the SMO is guaranteed. High performance sensorless drive of the PMSM based on SMO is established and the whole system is simulated by matlab. Simulation and experimental results show excellent performance.

Original languageEnglish
Title of host publicationProceeding of International Conference on Electrical Machines and Systems, ICEMS 2007
PublisherIEEE Computer Society
Pages426-431
Number of pages6
ISBN (Print)8986510081, 9788986510089
DOIs
StatePublished - 2007
EventInternational Conference on Electrical Machines and Systems, ICEMS 2007 - Seoul, Korea, Republic of
Duration: 8 Oct 200711 Oct 2007

Publication series

NameProceeding of International Conference on Electrical Machines and Systems, ICEMS 2007

Conference

ConferenceInternational Conference on Electrical Machines and Systems, ICEMS 2007
Country/TerritoryKorea, Republic of
CitySeoul
Period8/10/0711/10/07

Keywords

  • PMSM
  • SMO
  • Sensorless

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