Grid-Forming Applied to Converter-Dominated Marine Power Systems in Offshore Applications

Abstract

In recent years, zero-emission boats using shipboard microgrids have become common in shallow-water applications like tugboats and ferries. However, deep-water applications, including cargo ships and offshore vessels, still rely on multifuel combustion engines. As land power grids evolve with more renewable resources by shifting to converter-dominated systems, the same approach has a potential impact on the marine power systems as well, presenting both pros and cons. The paper discusses how converter-dominated power systems can improve marine power systems in offshore operations, which face challenges like large pulsed power loads, limited space, and maritime conditions. Key benefits include seamless blackout recovery, reduced power system stress, and increased operability. Energy storage systems managing peak consumption offer additional space for other loads, highlighting the importance of converter technology in improving the resilience and efficiency of future marine power systems.