Wind farm node connected DFIG/back-to-back converter coupling transient model for grid integration studies
Language
EN
Article de revue
This item was published in
Energy Conversion and Management. 2015-10-08, vol. 106, p. 428-439
English Abstract
This paper presents the explicit electromagnetic transient model of a Doubly Fed Induction Generator (DFIG), that includes its coupling with the back-to-back converter, when the generator/converter set is connected to the ...Read more >
This paper presents the explicit electromagnetic transient model of a Doubly Fed Induction Generator (DFIG), that includes its coupling with the back-to-back converter, when the generator/converter set is connected to the wind farm’s Thevenin equivalent, as seen from DFIG’s terminals. Besides that, DFIG’s grid side converter control system is defined in detail, so that expressions for the direct tuning of all compensators are provided. The overall electromechanical wind generator model includes 24 state variables: four mechanical, eleven electrical, and nine more – one for each controller – associated to the control system. The developed model is complemented with a state machine that implements the sequential control among the different stages that define its operational modes. Simulation and experimental results show that the developed model is able to predict the behaviour of the generator in short and long term scenarios.Read less <
English Keywords
Wind power generation
DFIG wind generator full-order transient model
Wind farm node Thevenin impedance
Grid and rotor side converter multi-loop control
Decoupling control
Operational modes of the generator
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