| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter system for a small ship by suppressing a total capacity increase of an inverter at the time of driving a propulsion device motor and a non-propulsion device motor which has a large capacity. <P>SOLUTION: The system is provided with a plurality of inverters 12 whose capacities are (A/n)kW and a plurality of inverters 13 whose capacities are not lower than BkW, the propulsion device motor 2 of a multiple wiring structure which is driven by the plurality of inverters, the non-propulsion device motor 3 of a single winding structure which is driven by the inverter of not lower than BkW, and a switching device 31 outputting a switching signal. In the inverter of not lower than BkW, the rated setting of the inverter can be switched based on the switching signal. At the time of rated sailing, the rated setting of the inverter of not lower than BkW is switched to A/nkW and the propulsion device motor is driven by the plurality of inverters. At the time of non-rated sailing when the motors are simultaneously used, the inverter of lower less than BkW is connected to the non-propulsion device motor, the rated setting of the inverter is switched to BkW and the motor of a different capacity is driven. <P>COPYRIGHT: (C)2009,JPO&INPIT |
