DEVICE FOR CHARGING ACCUMULATOR BATTERY OF UNDERWATER FACILITY Russian patent published in 2015 - IPC H02J7/10 

FIELD: electricity.

SUBSTANCE: device for charging accumulator battery is placed in three structure modules. In the first module installed onboard of the ship there is controlled voltage rectifier. In the second submersible module there is capacitor, single-phase self-contained inverter with control unit and separate primary winding of the transformer, at that the first and second structure modules are connected by a cable. In the third module installed at underwater facility there is separate secondary winding of the transformer, rectifier, smoothing reactor, instrument transducers of the device current and output voltage, charging current control device. In the device there are additional temperature instrument transducers installed to the second module. Transducer inputs are coupled to heat-producing elements of self-contained inverter and wire of the primary winding of the transformer and their outputs are connected to inputs of control unit of self-contained inverter. Besides there is introduced charging current regulator, which control input is connected to output of charging current control unit and the second capacitor connected to input terminals of charging current regulator and output terminals of the second rectifier. The charging current control unit is switched to breakage of wires connected to output terminals of the second rectifier. Charging current regulator and the second capacitor are installed at the third structure module.

EFFECT: improved reliability of charging process for accumulator battery of underwater facility from the onboard alternating network.

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