Online insulation detection and fault processing device and method of AUV (Autonomous Underwater Vehicle) direct-current power supply system

Abstract

The invention relates to an online insulation detection and fault processing device of an AUV (Autonomous Underwater Vehicle) direct-current power supply system. An online insulation detection module is connected with a device power supply control unit; the online insulation detection module comprises an insulation detection control unit, a bus insulation detection module and a branch insulation detection module. The method comprises the steps: carrying out the online circuit conversion on a power supply bus of the device power supply control unit by virtue of the bus insulation detection module, reflecting the insulation situation of the power supply bus by virtue of a converted circuit parameter, calculating whether the insulation of the power supply bus is decreased or not by virtue of the insulation detection control unit, inquiring relevant parameter data of each branch insulation detection module if the insulation resistance is decreased to be less than a warning value, then reporting the calculated insulation situation of each branch to the device power supply control unit, and carrying out the autonomous fault treatment according to the insulation situation of each branch and a sailing state of the AUV by virtue of the device power supply control unit. The device and the method have characteristics of online detection and online fault treatment.

Description

technical field [0001] The invention relates to an online insulation detection and fault handling technology of an AUV (Autonomous Underwater Vehicle) DC power supply system, in particular to an online insulation detection and fault processing device and method for an AUV DC power supply system. Background technique [0002] At present, the online detection methods of DC power supply system used in actual electrical engineering mainly include: bridge method, frequency conversion detection method, DC leakage current method, etc. Among them, the bridge method can only send out a general leakage current alarm signal. When the positive and negative grounding resistances decrease equally, the alarm signal cannot be generated, and this method needs to connect the ground to the power supply bus through a resistance bridge. For AUV Generally speaking, its ground (that is, the AUV shell) is often interfered by the propulsion motor. If this interference is introduced into the power su...

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Problems solved by technology

The usual insulation detection device only has the detection function, and the fault handling function often requires human participation or only has a simple fault handling function, which cannot meet the needs of AUV's actual navigation

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