System and apparatus for power transfer to vessels
First Claim
1. A system for supplying electric power from an AC power source to ships, each of the ships being moored at a respective berth of a quay, said system comprising:
- a rectifier, 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, anda 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 configurable to output AC power at a first or a second frequency independently at each of the berths and a ship connector for connecting the ship,characterized in that the system further comprises a DC distribution network connected to the DC side of the rectifier and that the rectifier is placed at a distance from the quay and each of the inverters is connected to the DC distribution network.
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Accused Products
Abstract
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 including a rectifier, having an AC and DC side, for converting AC electric power from the AC power source to 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 including an inverter configurable to output AC power at a first or a second frequency and a ship connector for connecting the ship. A DC distribution network 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 is also contemplated.
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Citations
20 Claims
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1. A system for supplying electric power from an AC power source to ships, each of the ships being moored at a respective berth of a quay, said system comprising:
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a rectifier, 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 configurable to output AC power at a first or a second frequency independently at each of the berths and a ship connector for connecting the ship, characterized in that the system further comprises a DC distribution network connected to the DC side of the rectifier and that the rectifier is placed at a distance from the quay and each of the inverters is connected to the DC distribution network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for supplying electric power from an AC power source to ships, each of the ships being moored at a respective berth of a quay, said system comprising:
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a rectifier, 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 configurable to output AC power at a first or a second frequency independently at each of the berths and a ship connector for connecting the ship, characterized in that the system further comprises a DC distribution network connected to the DC side of the rectifier, the rectifier being placed at a distance from the quay and each of the inverters being connected to the DC distribution network, at least a second rectifier connected to at least a second AC power source, and a master controller comprising; input means for receiving power requirements for each ship, input means for receiving available power supply for each of the AC power sources, a power flow management mechanism for determining active power needed from each of the rectifiers in order to balance the power requirements for the ships and for providing a power flow coordination, and for determining a set of reference values for the rectifiers connected to the AC power sources and for the inverters based on the determined active power need and one or more optimizing criteria, and output means for transferring the set of reference values for active and reactive powers to the AC power sources and to the inverters. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification