SHIP ELECTRIC POWER PLANT Russian patent published in 2014 - IPC B63H23/00 B63H23/24 B63H21/17 

FIELD: transport.

SUBSTANCE: invention relates to shipbuilding, specifically to ship electric power plants with shaft generators. Ship electric power plants includes the first thermal engine, the second thermal engine, shaft generator, the first, the send and the third shafts, variator connected with screw-propeller, control system, power lines, rotational speed sensors. The variator comprises three electrically interconnected unipolar machines. Herewith, rotor of shaft generator is fixed on the third shaft which is made hollow and installed coaxially to the third shaft using bearings or electromagnetic suspension. Also, rotational speed sensors are installed on all three shafts which sensors are connected with control system which is also connected with starter control input, exiter of shaft generator and excitation winding of unipolar machines, as well as control inputs of decouplers, circuit breakers, and first thermal engine rotational speed control unit.

EFFECT: following is achieved: energising ship electric power consumers from shaft generator separately and together with generator, shaft generator operation in engine mode with constant rotation frequency and transfer of mechanical energy to propeller, lowering level of sinusoidal components in power lines of ship electric power consumers, increased reliability, lowed mass and overall dimensions.

4 cl, 1 dwg