In this paper a new electric ship propulsion system is proposed as combination of a double generator set with a double inverter feeding a wound-rotor synchronous machine. Each generator set is composed by a diesel engine directly coupled to a compact, permanent magnet, synchronous generator. A diode rectifier connects the output of the generator to a variable voltage dc bus. The dc bus feeds one of the input sides of the double inverter. The double inverter acts as a multilevel converter and it is able to drive the 3-phase, 6-wire motor coupled to the propeller. The two generator sets can operate either jointly or one at a time, depending on the power demand from the drive system. The working point of each diesel engine is determined in order to supply power to the propeller with maximum efficiency.
Titolo: | Double-Inverter Drive System for Electric Ship Propulsion |
Autore/i: | GRANDI, GABRIELE; ROSSI, CLAUDIO; CASADEI, DOMENICO |
Autore/i Unibo: | |
Anno: | 2005 |
Titolo del libro: | Electromotion 2005 |
Abstract: | In this paper a new electric ship propulsion system is proposed as combination of a double generator set with a double inverter feeding a wound-rotor synchronous machine. Each generator set is composed by a diesel engine directly coupled to a compact, permanent magnet, synchronous generator. A diode rectifier connects the output of the generator to a variable voltage dc bus. The dc bus feeds one of the input sides of the double inverter. The double inverter acts as a multilevel converter and it is able to drive the 3-phase, 6-wire motor coupled to the propeller. The two generator sets can operate either jointly or one at a time, depending on the power demand from the drive system. The working point of each diesel engine is determined in order to supply power to the propeller with maximum efficiency. |
Data prodotto definitivo in UGOV: | 6-ott-2005 |
Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |