The ever-increasing penetration of wind power integration into a power system can produce significant impacts on the operation of an interconnected power system. As the major energy conversion technology for large wind turbines, the doubly fed induction generator (DFIG) will play an important role in future power systems. Hence, the impacts of the DFIG on the low-frequency oscillations of inter...

Nowadays, the Doubly-Fed Induction Generators (DFIGs) based Wind Turbines (WTs) are the dominant types of WTs connected to grid. Traditionally the back-to-back converters are used to control the DFIGs. In this paper, an Indirect Matrix Converter (IMC) is proposed to control the generator. Compared with back-to-back converters, IMCs have numerous advantages such as: higher level of robustness, r...

This paper presents an improved stator voltage magnitude and frequency control for standalone doubly fed induction generators (DFIGs) based wind power generation systems (WPGSs). The proposed technique uses a simple finite-state predictive current (FS-PCC). In this method, the switching vector IGBT is selected to minimize error between reference value predicted of rotor current. Moreover, discr...

<p>The work presents the dual-rotor wind energy conversion system (DRWECS) with a direct driven doubly-fed induction generator (DFIG). The consists of turbine (DRWT) DFIG, grid side converter (GSC), and machine (MSC). To command MSC, power (DPC) based on genetic algorithm (GA) classical pulse width modulation (PWM) has been applied. achieve maximum from DRWT, powe point tracking (MPPT) te...

This paper presents the state space modelling of doubly fed induction generator (DFIG) for small signal stability assessment. The gains of PI controller in torque and voltage control loop of rotor-side converter (RSC) are optimized by particle swarm optimization (PSO) to improve the dynamic performance of DFIG. These optimized parameters results in improved damping of DFIG and minimizes the osc...

The Doubly Fed Induction Generator (DFIG) is getting wider popularity due to its ability to adapt with variable wind speed and to capture more wind energy. Though DFIG has a salient feature of the fault ride through capability, this is not sufficient to preserve the necessity of the grid code when the DFIG system is connected with the grid. To accomplish this goal, a DC resistive superconductin...

This paper presents the operation of doubly fed induction generator (DFIG) with Fuzzy Logic Control & an integrated active filter capabilities using grid-side converter (GSC). The main contribution of this work lies in the control of GSC using Fuzzy Logic Control (FLC) for supplying harmonics in addition to its slip power transfer. The rotor-side converter (RSC) is used for attaining maximum po...

Abstract—This paper presents a power control for a Doubly Fed Induction Generator (DFIG) using in Wind Energy Conversion System (WECS) connected to the grid. The proposed control strategy employs two nonlinear controllers, Backstipping (BSC) and slidingmode controller (SMC) scheme to directly calculate the required rotor control voltage so as to eliminate the instantaneous errors of active and ...

Doubly Fed Induction Generator (DFIG) finds wide applications in wind energy that keeps on changing. Also, Small disturbances refer to transients; can be modeled as the change in load to DFIG system occurs more frequently. Therefore understanding the transient operation of DFIG became very much interesting and challenging. This is desired that the system should able to digest such disturbances....

This paper have studied the dynamic of a 2.0 MW Doubly Fed Induction Generator (DFIG) during a severe voltage sag. Using the dynamic model of a DFIG, it was possible to determine the current, Electromagnetic Force and flux behavior during three-phase symmetrical voltage dip. Among the technologies of wind turbines the DFIG is widely employed; however, this machine is extremely susceptible to di...