DC voltage converting device
First Claim
1. A subsea DC voltage converting device which supplies a converted DC voltage to at least one subsea electrical consumer via a cable connection,the subsea DC voltage converting device comprising:
- N DC voltage converting units of which each is serially connected to a DC voltage source on an input side and connected in parallel with the cable connection on an output side for supplying the converted DC voltage to the at least one subsea electrical consumer,wherein a value for N is based on a predetermined amount of power required for the at least one subsea electrical consumer, a predetermined passive cooling arrangement for the DC voltage converting units in a subsea environment, and a predetermined duty cycle control scheme for the DC voltage converting units that can compensate for failure of at least some of the DC voltage converter units,wherein the value for N is at least 20.
7 Assignments
0 Petitions
Accused Products
Abstract
A DC voltage converting device is on the output side connected to a DC voltage source and, on the output side, supplies a converted DC voltage to at least one electrical consumer via a cable connection. To improve such a DC voltage converting device in that also with high DC voltages on the input side, a conversion into another DC voltage is possible without any special constructional efforts and high costs while complicated cooling means or the like, are avoided at the same time, the DC voltage converting device comprises a plurality of DC voltage converting units of which each is serially connected to the DC voltage source on the input side and connected in parallel with the cable connection on the output side for supplying the converted DC voltage.
96 Citations
22 Claims
-
1. A subsea DC voltage converting device which supplies a converted DC voltage to at least one subsea electrical consumer via a cable connection,
the subsea DC voltage converting device comprising: -
N DC voltage converting units of which each is serially connected to a DC voltage source on an input side and connected in parallel with the cable connection on an output side for supplying the converted DC voltage to the at least one subsea electrical consumer, wherein a value for N is based on a predetermined amount of power required for the at least one subsea electrical consumer, a predetermined passive cooling arrangement for the DC voltage converting units in a subsea environment, and a predetermined duty cycle control scheme for the DC voltage converting units that can compensate for failure of at least some of the DC voltage converter units, wherein the value for N is at least 20. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A system for supplying power to a remote electrical device, the system comprising:
-
N DC voltage converters each having an input serially connected to a DC source and each having an output connected in parallel to the remote electrical device via a conductor, wherein a value for N is based on a predetermined amount of power required for the remote electrical device, a predetermined spacing requirement for the DC voltage converters due to an environment of the remote electrical device, and a predetermined redundancy control scheme for the DC voltage converters, wherein the value for N is at least 20.
-
-
21. A system for supply power to a subsea electrical device, comprising:
-
N subsea DC voltage converters each having an input serially connected to a DC source and each having an output connected in parallel to the subsea electrical device via a conductor, wherein at least some of the DC voltage converters are configured to convert differing amounts of input voltage into an output voltage, wherein a value for N is based on a predetermined amount of power required for the subsea electrical device and a predetermined duty cycle control scheme that can compensate for failure of at least some of the DC voltage converters, wherein the value for N is at least 20. - View Dependent Claims (22)
-
Specification