More Efficient Wind Energy Conversion System Using Shunt Active Power Filter

Abstract

Wind energy takes first place in many countries among other renewable energy. However, the power quality problems such as nonlinear and unbalanced loads, unbalanced grid, can increase the mechanical vibrations as well as the risk of overheating in Wind Energy Conversion System (WECS). Therefore, the objective of this work is the use of robust flying capacitor converter in order to enhance the WECS efficiency by minimizing mechanical vibrations and reducing thermal stress with minimum voltage stress of power switches. To this end, this paper proposes a WECS based on doubly fed induction generator (DFIG) with the stator connected directly to non-ideal power grid, grid side converter (GSC) with flying capacitor topology and robust input output linearization control used to regulate the dc side capacitor voltage and also compensate the current harmonics in power grid in order to avoid excessive heating and mechanical vibrations in WECS. Simulation using MATLAB demonstrate that the proposed approach improves the power quality by reducing the total harmonic distortion (THD) of grid current to a value which satisfies the limits of IEEE standard, and allows the 8 KW DFIG to operate with reduced mechanical vibration and minimum heating stress in addition to the generation of power.

Keywords:

• wind energy conversion system (WECS)
• doubly fed induction generator (DFIG)
• flying capacitor or multicellular converter
• input output linearization control
• shunt active power filter
• power quality improvement

Additional information

Funding

This work was funded by: Direction Générale de la Recherche Scientifique et du Développement Technologique, Algeria. (DGRSDT).

Notes on contributors

Boubakeur Rouabah

Boubakeur Rouabah received his Engineer from University of Bordj Bou Arriridj in 2009, Magister from university of Setif, Algeria in 2012, and PhD from university of setif-1 algeria in 2021. In 2020 until now, he was a researcher at University of Kasdi Merbah Ouargla, Algeria. His research interests include electric power components and systems.

Lazhar Rahmani

Lazhar Rahmani was born in Algeria in 1964. He received the Engineering degree in electrical engineering from university of Annaba, in 1991, and the D.E.A. and Ph.D. degrees in electrical engineering from the University of Setif, Algeria, in 1994 and 2005, respectively. He is currently an Assistant Professor with the Department of Electrical Engineering, University of Setif. His current research interests, with the electrical engineering team of the laboratory of automatic, are modeling and advanced control of power converters and power electronics systems and their digital control techniques. These topics deal with power quality such as active filters.

Mohamed Abdelbasset Mahboub

Mohamed Abdelbasset Mahboub received his Engineer from University of setif in 2009, Magister from university of setif, Algeria in 2012, and PhD from University of Batna Algeria in 2017. In 2019 until now, he was a researcher at University of Kasdi Merbah Ouargla, Algeria. His research interests include electric power components and systems.

Houari Toubakh

Houari Toubakh received his Engineering Degree in Electrical Engineering from the University of Technology, Setif, Algeria, in 2010. Then, he received his Master Degree in Automatical and Computer Engineering from the National Polytechnic Institute of Marseille France in 2012. He is curently Ph.D student in the High National Engineering School of Mines “Ecole Nationale Supérieure des Mines de Douai” at the Department of Automatic Control and Computer Science (Informatique & Automatique IA). His research interests include machine learning, wind turbine, diagnosis and prognosis of industrial production system using artificial intelligence techniques.

Moamar Sayed-Mouchaweh

Moamar Sayed-Mouchaweh received his Master Degree from the University of Technology of Compiegne—France in 1999. Then, he received his Ph.D. degree from the University of Reims—France in December 2002. He was nominated as Associated Professor in Computer Science, Control and Signal processing at the University of Reims—France in the Research center in Sciences and Technology of the Information and the Communication (CReSTIC). In December 2008, he obtained the Habilitation to Direct Researches (HDR) in computer science, control and signal processing. Since September 2011, he is working as a Full Professor in the High National Engineering School of Mines “Ecole Nationale Supérieure des Mines de Douai” at the Department of Automatic Control and Computer Science (Informatique & Automatique IA). His research interests include electric power components and systems.