Parameters Identification of the Three-Phase Wound-Rotor Induction Machine

Year 2017, Volume: 1 Issue: 1, 35 - 39, 28.12.2017

Marian Gaiceanu Bogdan Codres Razvan Buhosu

Abstract

In order to implement the adequate control of the wind turbine it is
necessary to know the parameters of the electric generator. Due to the
robustness, acquisition cost and maintenance, the three-phase wound-rotor
asynchronous generator is used. The objective of this paper is to apply an
identification method in order to find the electrical parameters (for both
stator and rotor windings) of the three-phase asynchronous machine used as
electric generator to be introduced for calculating the appropriate parameters
of the control loops regulators. The most common identification method is the
least squares one and it is used in this paper. The objective function is
described, the identified parameters are chosen by minimization of the
performance index. The synchronous reference frame based mathematical model of
the induction machine (IM) is provided. Therefore, the vector control of the
wind turbine is the most suitable control method. The Matlab implementation of
the proposed method is presented in the paper. In order to show the performance
of the used identification method, the real parameters values of the
three-phase IM's are compared with the parameters obtained through the
identification algorithm by using the proposed mathematical model of the IM.
The validation of the proposed method has been achieved both by numerical
simulation, and experimental results. Validation of the mathematical model is
important for using in both for the hardware in the loop control (HIL) and for
diagnosis purposes.

Keywords

parameters identification; least mean squares; wound rotor;

References

• Gianfranco Chicco Francesco Profumo Horia Leonard Andrei