Abstract:
It is presented a system for supplying electric power from a main power grid to a plurality of ships moored at a respective berth of a quay. The system comprises a connection point for connecting to the grid supplying electrical power at a first frequency, a frequency converter arrangement for converting electric power from the grid at the first frequency to electric power at a second frequency, a first connector, arranged to provide power from the grid at the first frequency, a second connector, arranged to provide power at the second frequency from the frequency converter arrangement, a plurality of switches, each switch being configured to supply of power from either of the two connector to a respective berth, the system further comprising a plurality of ship connection arrangements connected to a respective switch, each ship connection arrangement being adapted for connection to an electric system of a ship. A corresponding arrangement and method are also presented.
Abstract:
The present invention relates to a system for supplying electric power from an AC power source (AC-PS-1) to ships, each of the ship moored at a respective berth (A, B, C, D) of a quay, said system comprising a rectifier (5), having an AC and a DC side, for converting AC electric power from the AC power source to a DC power, the AC side arranged to be connected to the AC power source, and a plurality of ship connection arrangements for supplying electric power to a respective ship, each of the ship connection arrangements placed at one of the berths and comprising an inverter (11, 12, 13, 14) configurable to output AC power at a first or a second frequency and a ship connector for connecting the ship. The system further comprises a DC distribution network (9) connected to the DC side of the rectifier and the rectifier is placed at a distance from the quay and each of the inverters is connected to the DC distribution network..
Abstract:
Disclosed is a system for supplying electric power from an AC power source to ships, each of the ships moored at a respective berth of a quay. The system comprises a rectifier (5), having an AC and a DC side, for converting AC electric power from the AC power source to a DC power, the AC side arranged to be connected to the AC power source, and a plurality of ship connection arrangements for supplying electric power to a respective ship. Each of the ships connection arrangements are placed at one of the berths and have an inverter configurable to output AC power at a first or a second frequency and a ship connector for connection to the ship. The system further includes a DC distribution network (9) connected to the DC side of the rectifier (5) and the rectifier is placed at a distance from the quay and each of the inverters is connected to the DC distribution network (9).