Abstract
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 language | English |
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Pages (from-to) | 60-66 |
Number of pages | 7 |
Journal | Energy Conversion and Management |
Volume | 92 |
DOIs | |
State | Published - 1 Mar 2015 |
Externally published | Yes |
Keywords
- Induction motor
- Mechanical parameter estimation
- Modeling and simulation
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Nuclear Energy and Engineering
- Fuel Technology
- Energy Engineering and Power Technology