Abstract:
The aim of this project is to present the complete modeling and simulation
of wind turbine driven doubly-fed induction generator which feeds ac
power to the utility grid. For that, two pulse width modulated voltage
source converters are connected back to back between the rotor terminals
and utility grid via common dc link. The grid side converter controls the
power flow between the DC bus and the AC side and allows the system to
be operated in sub-synchronous and super synchronous mode of operation.
The proper rotor excitation is provided by the machine side converter. The
complete system is modeled and simulated in the MATLAB Simulink
environment in such a way that it can be suited for modeling of all types of
induction generator configurations. The model makes use of rotor
reference frame using dynamic vector approach for machine model.
