DC-link project applied to Variable Speed Drives in Subsea Power Systems

Daniel Krejci; João Adolpho V. da Costa; Diego de S. de Oliveira; Gustavo Cezimbra B. Leal; Emanuel L. van Emmerik; Mauricio Aredes

doi:10.48011/asba.v2i1.1128

Daniel Krejci Universidade Federal do Rio de Janeiro
João Adolpho V. da Costa Universidade Federal do Rio de Janeiro
Diego de S. de Oliveira Universidade Federal do Rio de Janeiro
Gustavo Cezimbra B. Leal Universidade Federal do Rio de Janeiro
Emanuel L. van Emmerik Universidade Federal do Rio de Janeiro
Mauricio Aredes Universidade Federal do Rio de Janeiro

DOI: https://doi.org/10.48011/asba.v2i1.1128

Keywords: Retification stage, Inversion stage, Resonance, Harmonic propagation, DC Link, Capacitance, Variable speed drives

Abstract

This paper presents a project method of the direct current link in order to decouple the rectification and inversion stages present in power electronics converters in a subsea power system, showing the calculation memories of the capacitors to be used in Variable Speed Drives that drive subsea loads. In order to observe the influence of harmonics on the subsea power system and on the voltage of the direct current link, the entire system was modeled with the PSCAD/EMTDC electromagnetic transient software.