Constant current power supply system for load self-adaptive submarine observation network

Abstract

The invention discloses a constant current power supply system for a load self-adaptive submarine observation network. The constant current power supply system comprises a constant current power supply, a load, an adjustable power balancer and a power supply management circuit, wherein the adjustable power balancer is connected with the load in parallel; and the power supply management circuit is used for controlling the output voltage of the constant current power supply system according to the current of the load and the current of the power balancer. The system realizes independent control management of input electric energy according to the size of the received load, so that the energy rate of the whole constant current power supply system is improved, the temperature rise characteristic inside a junction box cavity is improved, and the service life of the constant current power supply system is prolonged.

Description

technical field [0001] The invention belongs to the field of marine exploration, and in particular relates to a constant-current power supply system for load self-adaptive management of a seabed observation network. Background technique [0002] The constant current transmission cable system submarine observation network is one of the important choices for the submarine observation network, mainly because the constant current transmission cable system submarine observation network has a strong ability to resist short-circuit faults of the transmission cable, high reliability, good robustness, and fault points The positioning is simple and reliable, and the constant current repeater power supply scheme is mature and reliable. [0003] Since almost all scientific instruments are powered by constant voltage, when using a constant current transmission system, it is necessary to design a power balancer to obtain a stable constant voltage output. When the connected load is light ...

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Problems solved by technology

When the connected load is light load or no load, most of the output power of the submarine observation network constant current constant voltage power conversion system needs to be consumed by the power balancer

The energy utilization rate of the observation network is low, and the power balancer is seriously heated, which is not conducive to long-term work

[0004] The Hawaii Undersea Geo-Observatory (HUGO) submarine observation network built by the United States in 1997 adopts the DC constant current transmission method, and uses the negative resistance characteristics of the DC / DC switching power supply to adjust the power system to a constant power output mode. Dissipative consumption, resulting in low efficiency of the system and waste of energy

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