A Three-Level Neutral-Point-Clamped Converter Based Standalone Wind Energy Conversion System Controlled with a New Simplified Line-to-Line Space Vector Modulation

Tarak Ghennam, Lakhdar Belhadji, Nassim Rizoug, Bruno Francois and Seddik Bacha ()
Additional contact information
Tarak Ghennam: Laboratoire d’Electronique de Puissance, UER-ELT, Ecole Militaire Polytechnique (EMP), BP 17 Bordj-El-Bahri, Alger 16111, Algeria
Lakhdar Belhadji: Laboratoire d’Electronique de Puissance, UER-ELT, Ecole Militaire Polytechnique (EMP), BP 17 Bordj-El-Bahri, Alger 16111, Algeria
Nassim Rizoug: Ecole Supérieure des Techniques Aéronautiques et de Construction Automobile (ESTACA), BP 76121, 53061 Laval, France
Bruno Francois: Laboratoire d’Electrotechnique et d’Electronique de Puissance de Lille (L2EP), Centrale Lille, Cité Scientifique, BP 48, 59651 Villeneuve d’Ascq, France
Seddik Bacha: Grenoble INP, Université de Grenoble Alpes, CNRS, G2Elab, 38000 Grenoble, France

Energies, 2024, vol. 17, issue 9, 1-19

Abstract: Wind power systems, which are currently being constructed for the electricity worldwide market, are mostly based on Doubly Fed Induction Generators (DFIGs). To control such systems, multilevel converters are increasingly preferred due to the well-known benefits they provide. This paper deals with the control of a standalone DFIG-based Wind Energy Conversion System (WECS) by using a three-level Neutral-Point-Clamped (NPC) converter. The frequency and magnitude of the stator output voltage of the DFIG are controlled and fixed at nominal values despite the variable rotor speed, ensuring a continuous AC supply for three-phase loads. This task is achieved by controlling the DFIG rotor currents via a PI controller combined with a new Simplified Direct Space Vector Modulation strategy (SDSVM), which is applied to the three-level NPC converter. This strategy is based on the use of a line-to-line three-level converter space vector diagram without using Park transformation and then simplifying it to that of a two-level converter. The performance of the proposed SDSVM technique in terms of controlling the three-level NPC-converter-based standalone WECS is demonstrated through simulation results. The whole WECS control and the SDSVM strategy are implemented on a dSPACE DS 1104 board that drives a DFIG-based wind system test bench. The obtained experimental results confirm the validity and performance in terms of control.

Keywords: standalone wind energy conversion system; doubly fed induction generator; three-level neutral-point-clamped converter; AC supply control; simplified direct space vector modulation strategy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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