MULTIPLEX MOTOR PARALLEL DRIVE CONTROL APPARATUS

摘要

PURPOSE: A multi-motor parallel drive control device prevents the disruption of a main engine when a bus bar is disconnected by controlling multiple motors connected in parallel which drives a fueling pump or a cooling pump of the main engine. CONSTITUTION: A first bus bar (51) and a second bus bar (52) distribute power by purpose within a ship. An ordinary open circuit breaker (50) switches the connection between the first bus bar and the second bus bar. A first motor (10) drives a first pump with 50% capacity by being connected to the first bus bar. A second motor (20) drives a second pump with 50% capacity by being connected to the second bus bar. A first pressure sensor (11) measures the pressure of the first pump. A second pressure sensor (21) measures the pressure of the second pump. [Reference numerals] (11) First pressure sensor; (21) Second pressure sensor; (31) Third pressure sensor; (41) Fourth pressure sensor; (51) First bus bar; (52) Second bus bar