Bilinear and nonlinear control algorithms for a DC/DC converter for Multi-Terminal HVDC networks

Miguel Jiménez Carrizosa, (1) , Gilney Damm (2) , Abdelkrim Benchaib (3) , Pedro Alou (4) , Mariana Netto (5) , Françoise Lamnabhi-Lagarrigue (1)

1 L2S - Laboratoire des signaux et systèmes
2 IBISC - Informatique, Biologie Intégrative et Systèmes Complexes
3 ALSTOM GRID
4 Centro de Electrónica Industrial
5 IFSTTAR/COSYS/LIVIC - Laboratoire sur les Interactions Véhicules-Infrastructure-Conducteurs

This paper presents the modeling and control of a multilevel DC/DC bidirectional converter suitable for medium voltage and medium power applications, with a special interest in renewable applications. The multilevel converter is based on Dual Active Bridge (DAB) and its average dynamic model. Two different control strategies are addressed in this paper in order to achieve the overall control of the DC/DC converter: a bilinear systems' control based on quadratic feedback control, and a nonlinear control based in Lyapunov theory. System's controllability and stability are studied, in particular by the analysis of zero dynamics. The performance of both controllers are illustrated by computer simulations, and the concluding remarks analyze theirs characteristics and draw some comparisons.

Mots clés: Control of bilinear systems; DC/DC converters; Multi-Terminal HVDC; Nonlinear control; nonlinear control

Domaines: Automatique / Robotique

Miguel Jiménez Carrizosa,, Gilney Damm, Abdelkrim Benchaib, Pedro Alou, Mariana Netto, et al.. Bilinear and nonlinear control algorithms for a DC/DC converter for Multi-Terminal HVDC networks. 19th IFAC World Congress on International Federation of Automatic Control (IFAC 2014), Aug 2014, Cape Town, South Africa. pp.523--528. ⟨hal-01159854⟩