This article addresses the study regarding the emergence of ferroresonance and selfexcitation phenomena in Subsea Power Systems - SPS, composed essentially of synchronous generators installed on a platform (Topside), a three-phase umbilical cable and the electrical loads, the latter constituted by induction machines located on the seabed and connected to the umbilical through a power transformer and power electronic converters. Such phenomena are conceptually stated and characterized in the scope of SPS and the simulations are carried out in the PSCAD/EMTDC software, in its parallel processing environment, to verify indications of the existence of problems in the base network of the subsea distribution system.
This article discusses the exhaustive study of resonances in Subsea Power Systems (SPS) through the interaction of harmonics, caused by diode rectiers, and a comparative study of possible solutions to the problem. For this purpose, a large volume of simulations was carried out in the PSCAD/EMTDC simulation environment, in its parallel processing environment, to check for indications of the existence of problems in an subsea distribution system.
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.
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