Constant-current power supply system and method for network topology seabed observation network

Abstract

The invention relates to a constant-current power supply system and method for a network topology seabed observation network. The system comprises shore-based feed devices, main branch units, splitters and an observation instrument platform; the plurality of shore-based feed devices are connected with a plurality of main-stage submarine cables respectively; a plurality of main branch units connected in series in the main-stage submarine cables branch electric energy to a plurality of secondary submarine cables; the splitters connected in series in the submarine cables are connected with the observation instrument platform for supplying power for the observation instrument platform; and the network topology structure of the system and the main branch units with the bidirectional electric energy flow function can provide redundant feed devices and power transmission paths for the observation instrument platform, so that the normal operation of a seabed observation platform is maintainedwhen a submarine cable fault occurs in the system. Compared with the prior art, the system has the advantages of being flexible in power supply, simple in system structure and the like.

Description

technical field [0001] The invention relates to the technical field of ocean observation, in particular to a constant-current power supply system and method for a net-topological seabed observation network. Background technique [0002] The submarine observation network has two power supply modes of constant voltage parallel connection and constant current series connection, and the electrical equipment is a submarine instrument platform. [0003] The constant-voltage parallel transmission method has strong scalability, high power transmission efficiency, and large power capacity. It is suitable for various simple or complex topological structures, but its submarine cable ground fault isolation is more complicated, and branchers with electrical switching functions are required. . The constant-current series transmission method is difficult to expand, has low power transmission efficiency, and small power capacity, but it has a better ability to resist single-point submarine...

AI Technical Summary

Problems solved by technology

[0003]Constant-voltage parallel transmission mode has strong scalability, high power transmission efficiency, and large power capacity. It is suitable for various simple or complex topological structures, but its submarine cable Ground fault isolation is more complicated, and a tap with electrical switching function is required

The constant current series transmission mode is difficult to expand, the power transmission efficiency is low, and the power capacity is small, but it has a better ability to resist single-point submarine cable short-circuit faults

The constant current power supply systems in the prior art are all relatively simple chain or two-end power supply topological structures, which cannot adapt to the network-type topological submarine observation network with more complicated topological structures.

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