SHORE-BASED VARIABLE FREQUENCY POWER SUPPLY SYSTEM IN PORT

摘要

A shore-based variable frequency power supply system in port comprises a variable frequency power supply (C), a port high-voltage substation (A) and a ship power system (H). An input terminal of the variable frequency power supply is connected with the port high-voltage substation; the output terminal of the variable frequency power supply is connected with the ship power system. The power supply system can continuously output a three-phase AC voltage that its voltage can be regulated in a range of 0~6.6kV or 0~10kV and its frequency can be regulated in a range of 0~60Hz. The output side of the variable frequency power supply is connected with a distribution circuit (G) via cable reels (F), the high-voltage output supplies power to the ship power system via the distribution circuit directly, and the low-voltage output distributes power to the ship power system via a step-down transformer (T1). The power consumed by the power supply system is drawn from the port high-voltage substation, thus, the environment pollution and the energy consumption caused by using a ship fuel generator set as a power source can be greatly reduced, and a high quality and high reliable power supply can be provided to the vessels at anchor.