METHOD FOR POWER SUPPLY OF UNDERWATER VEHICLE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2020 - IPC B63G8/00 H02J7/14 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used in electric power systems of underwater vehicles with high autonomy and range of navigation. Device for power supply of underwater vehicle comprises storage battery, semiconductor converter, synchronous machine with magnetoelectric excitation, the rotor of which is mechanically connected to the screw, and the stator winding is connected to the AC circuit of the semiconductor converter, the DC circuit of which is connected to the accumulator battery. In addition, there is a device for controlling the position of the longitudinal axis of the underwater vehicle body and controlling it and the device for fixing the position of the longitudinal axis of the underwater vehicle body is opposite to the direction of the water flow and fixed relative to the sea bottom. Synchronous machine stator winding is multi-phase of N three-phase windings. Semiconductor converter is reversible in modular scheme of N single-type semiconductor modules, power of each of which is equal to 1/N power of synchronous machine. Direct current circuits of N semiconductor modules of a reversible semiconductor converter during synchronous machine operation in motor mode are connected in parallel, and during operation of synchronous machine in generator mode are connected in series. For power supply of underwater vehicle as energy source at charging of accumulator battery, sea current is used, mechanical energy of which when flow of water through the propeller blades at the fixed position of the longitudinal axis of the underwater vehicle body is opposite to the direction of the water flow and is fixed relative to the sea bottom, transformed in electric energy.

EFFECT: higher autonomy and range of underwater vehicle navigation.

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