POWER SUPPLY SYSTEM FOR MARINE DRILLING VESSEL

摘要

A power supply system for a marine drilling vessel is provided. The power supply system comprises a first power grid section coupled to a generator adapted to generate electric power and further coupled to an electrically powered active heave compensator. The heave compensator is adapted to raise and lower a drill string relative to the marine drilling vessel. The power supply system further comprises a second power grid section coupled to a generator adapted to generate electric power and further coupled to an electrically powered thruster drive of the marine drilling vessel. The first power grid section is electrically coupled to the second power grid section.