A new model of the double-feed induction generator wind turbine

Abstract

The variable speed double-feed induction generator wind turbine (DFIG) is today the most widely used concept, owing to its high performance, its capability to capture the maximum wind energy, and the low cost of the induction machine. These features contribute to the continuous installation of the DFIG power generation in several countries [1]. As a consequence, in the near future, this type of wind turbines may start to influence the behavior of electric power systems by interacting with conventional generation and loads. Therefore, DFIG turbine models that can be integrated into power system simulation software are needed.The DFIG is a standard, wound rotor induction machine with its stator winding connected directly to the grid and its rotor windings connected to the grid trough an ac/dc/ac PWM converter. The ac/dc/ac converter normally consists of a machine-side converter and a grid-side converter, both of which are controlled by decoupled d-q control approaches. The detailed model of the DFIG demands high computational requirement, which increases when a wind farm is considered. The aim of this paper is, therefore, to propose a new simplified model of the DFIG appropriate for bulk power system dynamic studies.

Power conditioning system coupled with a flow battery for wind energy applications: modelling and control design

“…The model of the wind farm is obtained from [20, 21]. The model of the DFIG is developed in [22]. The simulations carried out employed the SimPowerSystems® package of the Matlab/Simulink software.…”

Thyristor‐based flexible ac transmission system for controlling the vanadium redox flow battery

“…Owing to the generator power losses, a constant gain < 1.0 is used for the calculation of the DFIG active power (P DFIG ). The estimation of the stator and rotor active power is developed in [29]. The numerical method used for the wind speed calculation is obtained from [29][30][31].…”

“…The estimation of the stator and rotor active power is developed in [29]. The numerical method used for the wind speed calculation is obtained from [29–31].…”

Doubly-fed wind turbine generator control: A bond graph approach

“…[4][5][6][7]. In [4] a sliding mode control is used, and in [5] the power control of a doubly-fed induction machine via output feedback is presented.…”

“…The behavior of such machines in large wind farms, along with the general active and reactive power control has been addressed in [6]. A novel simplified model of the DFIG appropriate for bulk power system studies is presented in [7]. In this paper, a different structure for the DFIG control, based on the bond graph methodology [8][9][10] is proposed.…”