Patent ID: 9553522
Date: 2017-01-24
CPC Classifications: H02J,H02M

Claim:
1. A method for transferring electrical power in the sea, the method comprising: generating AC power; guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second end of the cable; and changing a frequency of the AC power guided through the cable based on a value of power consumption of a load connected to the second end of the cable, the changing comprising changing the frequency from a previous frequency at a previous value of power consumption to a changed frequency at a changed value of power consumption, wherein the previous frequency is selected based on a length of the cable between the first end of the cable and the second end of the cable, wherein the changed frequency is based on calculating a plurality of voltage ratios between a first voltage and a second voltage based on different test frequencies and based on at least the previous value of power consumption and the changed value of power consumption, and wherein the first voltage represents a voltage of the generated AC power or a voltage at the first end of the cable, and the second voltage represents or is indicative of a potential difference between the second end of the cable and a reference potential.