International Journal of Rotating Machinery (Jan 2012)

A Rotor Flux and Speed Observer for Sensorless Single-Phase Induction Motor Applications

  • Massimo Caruso,
  • Vittorio Cecconi,
  • Antonino O. Di Tommaso,
  • Ronilson Rocha

DOI
https://doi.org/10.1155/2012/276906
Journal volume & issue
Vol. 2012

Abstract

Read online

It is usual to find single-phase induction motor (SPIM) in several house, office, shopping, farm, and industry applications, which are become each time more sophisticated and requiring the development of efficient alternatives to improve the operational performance of this machine. Although the rotor flux and rotational speed are essential variables in order to optimize the operation of a SPIM, the use of conventional sensors to measure them is not a viable option. Thus, the adoption of sensorless strategies is the more reasonable proposal for these cases. This paper presents a rotor flux and rotational speed observer for sensorless applications involving SPIMs. Computer simulations and the experimental results are used to verify the performance of the proposed observer.