Sensorless vector controller for a synchronous reluctance motor

Milutin G. Jovanovic*, Robert E. Betz, Don Platt

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)


A new high-performance sensorless speed vector controller that implements the maximum torque per ampere control strategy for the inverter-driven synchronous reluctance machine is presented in this paper. It is based on a parameterdependent technique for on-line estimation of rotor position and angular velocity at the control rate. The current ripple principle is used to estimate position. The estimates are fed to a conventional closed-loop observer to predict the new position and angular velocity. The very high accuracy of the sensorless control algorithm at both low and high speeds is confirmed by experimental results.

Original languageEnglish
Pages (from-to)346-354
Number of pages9
JournalIEEE Transactions on Industry Applications
Issue number2
Publication statusPublished - 1998
Externally publishedYes

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