Combined energy system for underwater power supply

Abstract

The invention discloses a combined energy system for underwater power supply. The combined energy system comprises a magnesium seawater fuel cell, a control unit, a primary lithium battery, a voltageconverter, a deep sea lander, a boosted circuit, a buck circuit, a charger, a secondary lithium battery, a protection circuit and a deep sea submersible. In the working state of the system, on one hand, the primary lithium battery and the magnesium seawater fuel cell work cooperatively to provide stable electric energy for the deep sea lander; on the other hand, the primary lithium battery supplies power to the deep sea submersible; meanwhile, the secondary lithium battery is charged; enough electric energy required by long-time detection operation of the deep sea submersible is ensured; therefore, the system can meet the requirements of long-time detection operation of deep-sea equipment, has the advantages of being stable in work, free of maintenance, low in cost, high in reliability andthe like, achieves stable power supply of deep-sea submersible electric equipment, and meanwhile solves the problem that power loss is large due to the fact that an underwater mooring line is long.

Description

technical field [0001] The invention relates to the field of new energy applications, in particular to a combined energy system for underwater power supply. Background technique [0002] As we all know, seawater accounts for about seven tenths of the earth's surface area. In recent years, ocean development has received great attention. Ocean engineering, marine military, seabed exploration and research all require power supplies, especially equipment that works in the deep sea or seabed for a long time often requires all equipment to be anchored to the seabed. Using cables to transmit electric energy on the sea surface or using chemical power sources placed in containers makes power supply very complicated, thereby greatly increasing equipment costs and operating costs. Therefore, how to make full use of the ocean's own conditions to provide electrical energy for equipment is one of the important issues in ocean development. [0003] Magnesium seawater fuel cell is an elec...

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Problems solved by technology

[0008] In view of the needs of the current national deep-sea scientific research and the problems of high cost, high risk and low efficiency of existing deep-sea equipment, combined with the technical characteristics of various deep-sea equipment such as deep-sea landers and remote-controlled submersibles, many deep-sea operation equipment needs to be installed in the ocean. Continuously work for a long time, but the reliability of the power supply energy system in the prior art is low and the production and operation cost is very high, and the effect of saving energy cannot be achieved

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