DFIG Modeling for Dynamic Simulation using ATP-EMTP

Abstract

The doubly fed induction generator (DFIG) allows control of the active and reactive powers and power factor of the machine stator. The main contribution of this work is to mathematically analyze the DFIG through models that reflect the same calculations performed by the ATP-EMTP software in dynamic regime, knowing the transient behavior of the electrical quantities at various points of the DFIG and subsequently comparing the results of the simulations obtained with the mathematical models developed. Computer simulations were performed to obtain the operation of the DFIG, and finally, an analysis of the effects produced by each type of machine operation was performed, analyzing current values ​​in dynamic regime. To achieve the objectives, the system modeling was simulated in the ATP-EMTP software and compared with the equations implemented in MATLAB®. The results obtained by the simulation validated the adopted mathematical modeling, proving the efficiency of the model in representing the stator and rotor currents on the d and q axes obtained in the simulations. The results obtained in this work showed the functionality of ATP-EMTP for the simulation of a DFIG, making possible several studies to improve the system's performance through the developed mathematical modeling.