SST-Based Marine Shipboard System to Achieve Improved Performance & Easy Renewable Energy Integration

Abstract

Conventional transformers play an important role in the shipboard power system. The introduction of sensitive electronic loads suffers from numerous types of service interruptions, which results in financial loss and damage to the associated devices and the performance of the system. These types of problems which are experienced generally in electrical ships’ distribution systems are classified as power quality issues such as voltage sag and swell, unwanted harmonics, and imbalance in the system. To choose the appropriate transformer the main focus should be on its power quality, size, efficiency, and protection circuit. The use of a Solid-State Transformer (SST) is the economical way to overcome these types of issues. To meet the requirement of the marine shipboard system, a multi-port SST-based system is proposed in this paper. In addition to that SST can support a renewable energy system (RES) on the secondary side of SST to enhance the performance of the proposed system. SST allows RES without the need for devices used for power conversion. This will reduce voltage fluctuation and allow marine shipboards to switch their power source to reduce their electricity cost. This paper proposes an SST-based marine shipboard system embedded with a renewable energy system for the enhanced performance of the system.