Inverter

Details Inverter Inverter

2004-06-23

2009-10-27

Ip, Paul (Department: 2837)

Electricity: motive power systems

Battery-fed motor systems

C318S400030, C318S400090, 30, 30, C320S104000, C320S138000

Reexamination Certificate

active

07609010

ABSTRACT:
The present invention relates to an inverter and a method for converting direct current voltage to alternating current. The inverter comprises a first input arranged to be connected to the ordinary current supply system of a vessel, where the current supply system comprises a generator connected to a battery, and an output, and an output arranged to be connected to an alternating current motor, where, for at least a period of time, the alternating current motor requires a first torque M1in order to rotate. The inverter comprises, in addition, a regulating circuit arranged to measure a charging current from the generator to the battery and to measure the voltage level in the battery. The regulating circuit is, in addition, arranged to permit a certain output current from the vessel's ordinary current supply system to the inverter which is higher than the charging current, in a first operating mode. The regulating circuit is, in addition, arranged to limit the output current while maintaining the torque for the alternating current motor, in a second operating mode.

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