METHOD OF OPERATION OF SHIP DRIVE MOTOR SUPPLIED BY PDM-INVERTER AND SHIP DRIVE SYSTEM

摘要

FIELD: transport.SUBSTANCE: invention relates to operation of ship drive motor (2) supplied by at least one PDM-inverter (3) whereat components (5) of PDM-inverter (3) changeover are switched at variable switch frequency. Said inverter is switched over manually by ship crew irrespective of motor (2) and inverter (3) conditions to change ship noise acoustic spectrum. Ship drive motor is supplied by several inverters whereat inverter switches are controlled at identical switchover frequency.EFFECT: ship engine noise reduction.10 cl, 3 dwg