Safety and Security Study for Shore Power System: State-of-the-Art

Over the years, the shore power technology of ships has become one of the most important measures for energy saving and emission reduction in ports, and it has been paid more and more attention by governments around the world. Shore power technology is to stop the use of auxiliary machinery while the ship is at the dock, and switch to shore power supply to obtain the power required by its pump set, ventilation, lighting, communication and other facilities. The shore power supply system mainly includes the transformation and frequency conversion of the power supply with the connection between the shore power supply system and the ship. While shore power technology is becoming more and more widely used, we must also begin to pay attention to the safety requirements of shore power applications, to ensure the reliability and stability of shore power facilities and equipment, and to ensure the safety of operators and users. This article summarizes the safety and security application methods of shore power system from three aspects: insulation monitoring, shore power equipment safety improvement technology, and fault diagnosis.