INVESTIGATION OF OFFSHORE DC STATION WITH DISTRIBUTED POWER COLLECTION AND CASCADED BOOSTING-VOLTAGE TOPOLOGY: A COMPREHENSIVE STUDY

Abstract

In order to collect DC power and boost DC voltage for offshore DC stations, the present research uses a distributed power- collection and cascaded boosting voltage (DPCB) topology made up of several cascaded single active bridges (SABs). In contrast, HVDC stations use the conventional concentrated power-collection and boosting voltage (CPCB) framework. It has high DC voltage boosting powers, is simple to build, is affordable, and offers a low system error rate. The next three variables are looked at. After first determining the DPCB topology with its circuit equations, the phase-shifting control approach is applied to further investigate the operational mechanism. The system minimal signal model is then used to construct a fuzzy control strategy. Third, a fault tolerance strategy with projected power ratio is developed to stop the DPCB station from failing if part of the SABs and generators fail. A significant power differential exists due to windward and wind turbine siting factors. The viability and efficacy of the designed DPCB station with its strategy are finally validated using simulation findings.INDEX TERMS: - SAB, fault tolerance, distributed power collecting, cascaded boosting voltage, and topology.