Simple mechanical parameters identification of induction machine using voltage sensor only

Yoram Horen, Pavel Strajnikov, Alon Kuperman

Research output: Contribution to journalArticlepeer-review


A simple low cost algorithm for induction motor mechanical parameters estimation without speed sensor is presented in this paper. Estimation is carried out by recording stator terminal voltage during natural braking and subsequent offline curve fitting. The algorithm allows accurately reconstructing mechanical time constant as well as loading torque speed dependency. Although the mathematical basis of the presented method is developed for wound rotor motors, it is shown to be suitable for squirrel cage motors as well. The algorithm is first tested by reconstruction of simulation model parameters and then by processing measurement results of several motors. Simulation and experimental results support the validity of the proposed algorithm.

Original languageAmerican English
Pages (from-to)60-66
Number of pages7
JournalEnergy Conversion and Management
StatePublished - 1 Mar 2015
Externally publishedYes


  • Induction motor
  • Mechanical parameter estimation
  • Modeling and simulation

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment


Dive into the research topics of 'Simple mechanical parameters identification of induction machine using voltage sensor only'. Together they form a unique fingerprint.

Cite this