Modeling of doubly-fed induction generator based power supply system for aircraft applications

With developing aircraft technologies, there has been a significant increase in electrical equipment in aircraft. The increase in the electrical equipment used in aircraft caused an increase in energy demand. Therefore, the implementation of stronger and more reliable electricity generation, transmission, and storage methods has become an imperative concern for aircraft. In this thesis study, it has been studied to adapt the doubly-feed induction generator which produces constant output at variable speeds by eliminating the mechanical constant speed drive in the turbine generator, which is the main electric source of the aircraft. Firstly, the structure of DFIG has been researched and comprehended and its working principle has been assimilated. Afterwards, DFIG which can operate in isolated regions, designed for the production of electricity aircraft. Flyback converter, inverter and a asynchronous generator are used for modeling of the system. Keywords: Aircraft electric generation systems, Wind tribune types, Generator types, Doubly-Fed Induction Generator, Variable speed constant frequency and voltage, Flyback converter, Standalone operation, DFIG