AUTHOR(S): 

Milkias Berhanu Tuka, Mengesha Mamo

TITLE

Steady State Analysis & Controlling Active and Reactive Power of Doubly Fed Induction Generator for Wind Energy Conversion System

KEYWORDS

DFIG, Power converter, Active power, reactive power, Matlab-Simulink

ABSTRACT

The doubly fed induction generator (DFIG) wind energy system is widely accepted in today's wind energy industry. The DFIG presented in the paper is of Adama-II wind power project in Ethiopia that is connected with the grid system. The DFIG is a wound rotor induction generator type in which the rotor circuit can be controlled by external devices called power converters to achieve variable speed of operation. Thus, this paper presents the steady state analysis of a DFIG used in the project at various operating conditions and consequently, it also addresses the controlling mechanisms of active and reactive power at stator winding by employing the well-known vector control approach. A Matlab-Simulink is used for modeling and controlling purposes. The stator of the DFIG is 0.69 kV which is connected to the grid through a three-winding pad mounted transformers (33kV), whereas the rotor connection to the grid is done through reduced capacity power converters.

Cite this paper

Milkias Berhanu Tuka, Mengesha Mamo. (2016) Steady State Analysis & Controlling Active and Reactive Power of Doubly Fed Induction Generator for Wind Energy Conversion System. International Journal of Renewable Energy Sources, 1, 38-47