Underwater power supply suitable for constant-current power supply type seabed observation network

Abstract

The invention discloses an underwater power supply suitable for a constant-current power supply type seabed observation network. The underwater power supply comprises a direct-current conversion cabinand a balance load cabin which are independent of each other, a main power conversion circuit and a constant power circuit are arranged in the direct-current conversion cabin; a balance load circuitis arranged in a balance load; an output end of the main power conversion circuit is connected with an input end of the constant power circuit, and an output end of the constant power circuit is connected with the balance load cabin, the main power conversion circuit is used for receiving electric energy provided by a shore base station through a submarine cable, converting constant current into constant voltage and supplying power to an electric load for a scientific instrument; the constant power circuit is used for controlling the constant-power output of the underwater power supply when load switching occurs in the electric load for the scientific instrument; and the balanced load circuit is used for converting redundant electric energy of the direct-current conversion cabin into heatenergy and dissipating the heat energy. The high common-mode voltage isolation and heat dissipation of an underwater power supply input port are realized by adopting encapsulation oil filling and a ceramic gasket, and the power supply is more suitable for a multi-seabed main base station and a long-distance large constant-current power supply network.

Description

technical field [0001] The invention belongs to the technical field of submarine observation network, in particular to a high-power high-voltage underwater power supply suitable for the main base station of a long-distance, multi-node constant current power supply submarine observation network, and in particular to a constant current power supply type submarine observation network. underwater power. Background technique [0002] The high-voltage DC power supply network of the submarine observation network is mainly composed of three parts: the shore-based high-voltage power supply (PFE), the submarine cable, and the underwater high-voltage conversion power supply (hereinafter referred to as the underwater power supply) of multiple submarine main base stations: the shore-based high-voltage power supply is equivalent to a primary Substation equipment, which converts mains power into high-voltage direct current; long-distance submarine cables are used as high-voltage direct cur...

AI Technical Summary

Problems solved by technology

However, high-power underwater power supplies will inevitably face a series of problems such as high-voltage isolation, low reliability, and difficult heat dissipation.

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