This paper proposes an improved direct active and reactive power control (DPC) strategy for a grid-connected doubly fed induction generator (DFIG) based wind-turbine system under unbalanced grid voltage condition. The method produces required rotor voltage references based on the sliding mode control (SMC) approach in stationary reference frame, without the requirement of synchronous coordinate...

In this work, we are interested in improving the performance of a doubly-fed induction generator (DFIG)-based wind system, by applying sliding mode control strategy. The objective is regulation active and reactive power, also voltage frequency signal injected into distribution network. model proposed for based on technique with estimators. was validated simulation MATLAB/Simulink.

Doubly fed induction generator (DFIG) based wind turbines are most employed for onshore applications because of their cost-effectiveness. The drivetrain improvement is barely studied due to the maturity DFIG systems. This paper investigates two methods improving annual energy production (AEP) turbines. They referred as short-circuited and <inline-formula xmlns:mml="http://www.w3.org/1998/Math/M...

The impact on the stability of power systems is rising as penetration level renewable energy with sporadic natures rises rapidly grid. However, different types sources (wind, solar) and their combination system varies even same level. This paper concentrates mainly analysis multi-machine connected to various sources. study presents a simple novel control technique named automatic reactive suppo...

In this paper performance analysis of Doubly Fed Induction Generator under abnormal condition is analysed. In recent years, this series compensated transmission system will produce unwanted effect of sub synchronous resonance. Super Conducting Magnetic Energy Storage (SMES) provides an efficient damping for sub synchronous resonance that will enhance power system stability in addition to real a...

Real-time simulation of a three-terminal high-voltage directcurrent (HVDC) grid connected to a doubly-fed induction generator (DFIG) based wind farm has been presented in this paper. A recently invented control strategy, known as powersynchronization control, is applied for the integration of the wind farm to the HVDC grid. The dynamic performance study of the system under normal wind power flu...

Nowadays, the generation profile of electric energy systems changes with the increasing integration of renewable energy sources. Wind turbines with Doubly-Fed Induction Generators (DFIG) are replacing bulk synchronous generators. The replacement of these synchronous generators will affect power system dynamics in a large extent. Standard controllers for synchronous generators like governors and...

With the increasing penetration of wind power, using turbines to participate in frequency regulation support power system has become a clear consensus. To accurately quantify inertia provided by doubly-fed induction generator (DFIG) based farm, response model DFIG with additional control is established, and then Routh approximation, explicit expression virtual moment derived for grid-connected ...

This research work deals with the modelling, control and simulation of a wind turbine based on doubly fed induction generator (DFIG) in current sensor’s failure event. We present first time model energy conversion system DFIG by active disturbances rejection (ADRC) optimized genetic algorithm. Particular focus is directed towards technique for detection, identification, isolation reconfiguratio...