Sensorless speed estimation of induction motor based on the secondary and primary resistance on-line identification without any additional signal injection

Kan Akatsu, Atsuo Kawamura

Research output: Contribution to journalConference article

5 Citations (Scopus)


In the low speed region, it is difficult to estimate the rotor speed of the induction motor, because the machine parameter (especially R2) has a strong influence to the speed estimation. It is known that the simultaneous estimation of the speed and R2 is impossible. In this paper the R2 estimation in the transient state without adding any additional signal to the stator current is proposed, and the R1 is estimated from the instantaneous reactive power. These algorithms are verified by the digital simulations and the experiments.

Original languageEnglish
Pages (from-to)1575-1580
Number of pages6
JournalPESC Record - IEEE Annual Power Electronics Specialists Conference
Publication statusPublished - 1998 Jan 1
EventProceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2) - Fukuoka, Jpn
Duration: 1998 May 181998 May 21


ASJC Scopus subject areas

  • Modelling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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