The integration of wind energy systems into the electric grid has become inevitable despite many problems associated with this integration. Most these are due to variations in speed. for example oscillations power generated, which implies lack guarantee obtaining maximum and ripple electromechanical torque generator. This work aims at mitigating conversion system-driven doubly-fed induction gen...

With the increase in energy power requirement and reduction availability of conventional fuel resources, practice generating electrical using renewable resources has gained importance. Wind is considered a significant resource commercially used for electricity generation. velocity varies continuously, hence, output wind generator varies. As result, turbine develops not at corresponding maximum ...

In this paper, an artificial intelligence method particle swarm optimization (PSO) algorithm is presented for determining the optimal PI controller parameters for the indirect control active and reactive power of doubly fed induction generator (DFIG) to ensure a maximum power point tracking of a wind energy conversion system. A digital simulation is used in conjunction with the PSO algorithm to...

This paper presents a new approach to detect and isolate the current sensor faults, a doubly fed induction generator (DFIG) for a wind turbine application. And to detect the variable resistance faults. A method using an unknown input of multiple observers described via TakagiSugeno (T-S) multiple models. A bank of multiple observers scheme (DOS) generates a set of residuals for detection and is...

Wind Energy Conversion Systems are the most striking renewable energy resources available to generate the electricity. Doubly-fed Induction Generator (DFIG) based wind turbine with variable speed is the most common wind turbine in the growing wind market. In any WECS, power flow must be maintained at all instant irrespective of any fault in the system. This paper deals with fault tolerant contr...

This paper deals with hybrid sliding mode control of Doubly Fed Induction Generator DFIG with Maximum Power Point Tracking MPPT connected by rotor side to three bridges of Multicellular Converters MCCs. The hybrid aspect of the converters is taken into consideration which includes the continuous and discrete states of the converters. The vector control is used to command the DFIG speed and reac...

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 direc...

Variable speed operation is essential for large wind turbines in order to optimize the energy capture under variable wind speed conditions. Variable speed wind turbines require a power electronic interface converter to permit connection with the grid. The power electronics can be either partially-rated or fully-rated [1]. A popular interface method for large wind turbines that is based on a par...

Abstract The main problem of wind turbines is associated with induction generators in their power supply during short circuits the grid. In this research, a new method presented for uninterrupted operation turbine equipped an generator fed on both sides feeding network errors. Wind farms doubly-fed (DFIG) require two abilities to allow system operators increase proficiency. These capabilities i...

The transient characteristics of short-circuit current (SCC) in doubly-fed induction generator (DFIG) are quite different from the widely researched conventional synchronous machines. However, second harmonic SCC that impact reliability transformer protection have not been accurately analysed. This paper presents generation mechanism DFIG by deducing dynamic response rotor-side converter, with ...