A Simulation For Doubly-fed Induction Generator(DFIG)ynamic Characteristic
Date Issued
2009
Date
2009
Author(s)
Wung, Chuan-Siang
Abstract
Dynamic performance of a doubly fed induction generator(DFIG) with a back-to-back PWM converter under disturbance conditions is investigated in this thesis. The mathematical models for the wind turbine, the induction generator, the supply side converter, the rotor side converter, the DC capacitor, the transmission line, the load, and the fixed AC capacitor are first established. Decoupled controllers for the supply side controller and the rotor side controller are then proposed in order to regulate the stator voltage and to adjust the rotor voltage such that maximum power output can bechieved by the doubly-fed induction generator. Dynamic simulations for the system subject to disturbances such as load change, three-phase fault, and wind speed variations are conducted using MATLAB/Simulink to demonstrate the effectiveness of the proposed decoupled controller.
Subjects
doubly-fed induction generator
wind power
induction generator
back-to-back PWM
Type
thesis
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