Method for starting internal combustion engine of hybrid propulsion system in marine vessels and hybrid propulsion system in marine vessels

摘要

A method of operating a hybrid propulsion system (11) of an offshore vessel (10), the hybrid propulsion system comprising a propulsion shaft (16) and a propeller (14) assembled to the propulsion shaft (16), the propulsion shaft (16) and the An internal combustion piston engine 18 arranged to be mechanically connectable with a propeller and a forced transmission connection, arranged mechanically connectable with a forced transmission connection with the propulsion shaft 16 and / or the internal combustion piston engine 18 And an electric motor-generator (20, 20 ''), in the starting method, the internal combustion piston engine (18) applies electric power from an on-board power source (24) to the electric motor-generator (20, 20''). And started by rotating the internal combustion piston engine 18 by the electric motor-generator 20, 20 '', and the rotational speed of the internal combustion piston engine 18 is The internal combustion piston is accelerated to a predetermined limited rotational speed without attempting to start the internal combustion piston engine 18, and only after the rotational speed of the internal combustion piston engine 18 reaches a predetermined limited rotational speed. The engine 18 is started.