This paper addresses the problem of controlling wind energy conversion systems (WECS) which involve permanent magnet synchronous generator (PMSG) fed by IGBT-based buck-to-buck rectifier-inverter. The goal of the control is to maximize wind energy extraction and this necessitates letting the wind turbine rotor operate in variable-speed mode. The control strategy involves: (i) a nonlinear regula...

The diagnosis of wind energy conversion systems (WECS) turns out to be necessary because their relatively high cost operation and maintenance. Wind turbines are hard-to-access structures, they often located in remote areas. Therefore, a (e-diagnosis) is required. This paper proposes an alternative approach for the e-diagnosis WECS based on discrete wavelet transform (DWT) frequency analysis aer...

Abstract The presented paper gives a detailed observation of the PQ related problems for WE based on EFIG or DFIG (Extra Doubly Fed Induction Generator. Fundamental Frequency Components are most typical reasons disruption power quality. On other hand, wind loading conditions also disrupt Numerous modes removing these were studied to get rid fundamental frequency components WES (Wind Energy Syst...

The paper presents an optimum design procedure for the controller used in the frequency converter of a variable speed wind turbine (VSWT) driven doubly fed asynchronous generator (DFAG) by using Proportional-Integral (PI) controller. The cascaded control is frequently used in the control of the frequency converter using the proportional PI controllers. The setting of the parameters of the PI co...

The global electrical energy consumption is rising and there is steady increase of the demand on power generation. In addition to conventional power generation units a large number of renewable energy units are being integrated into the power system. The Wind Energy Conversion system (WECS) is the most cost competitive of all the environmentally clean and safe renewable energy sources in world....

High penetration of wind power in the electricity system provides many challenges to power system operators, mainly due to the unpredictability and variability of wind power generation. Although wind energy may not be dispatched, an accurate forecasting method of wind speed and power generation can help power system operators reduce the risk of an unreliable electricity supply. This paper propo...

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 ...

Motivated by the increasing concerns over environmental challenges such as global warming and exhaustion of fossil-fuel reserves, renewable energy industry has become most sought-after source electrical production worldwide. In this context, wind conversion systems (WECS) are one dominant fastest-growing technologies, playing an increasingly vital role in power generation. To meet growing deman...

This study introduces new tuning technique for the PID control scheme and its application to regulate the voltage magnitude and the frequency of wind energy conversion system (WECS). The developed technique is stem from blending the ant system optimization method with Takagi Sugeno (T-S) fuzzy system approach. The optimum relationship between the PID controller gains and the parameters of T-S f...

This paper aims to increase the power production of gearless permanent magnet synchronous generator (PMSG) based wind energy conversion systems (WECS) in strong (greater than 25 m/s) speed regions. In general, most turbines cut off when is over cut-out rate; as a result, generation farm decreases. study introduces look-up table pitch angle and rotational control generate extra region. Consequen...