Title:
ISOLATED ELECTRICAL SYSTEM INCLUDING ASYNCHRONOUS MACHINE WITH PRIME MOVER AND INVERTER/RECTIFIER
Document Type and Number:
WIPO Patent Application WO1998011643
Kind Code:
A3
Abstract:
An electrical system for use in isolation, the electrical system comprising a main engine (14), such as a gas turbine or a diesel engine, a generator (13) driven by the main engine (14) for generating a first alternating voltage (19), a first rectifier unit (12) for converting the first alternating voltage (19) generated by the generator (13) into a direct voltage on a DC bus (18), and at least one inverter unit (10, 15) for converting the direct voltage of the DC bus (18) into a second alternating voltage (20). The generator (13) driven by the main engine (14) for generating the first alternating voltage (19) is an asynchronous machine coupled directly to the shaft of the main engine (14), and the first rectifier unit (12) also comprises an inverter part for converting the direct voltage of the DC bus (18) into an alternating voltage with an adjustable frequency to said asynchronous machine (13) so as to use the machine as a motor. 00000
Inventors:
HENTUNEN ERKKI (FI)
MULTANEN TERO (FI)
MULTANEN TERO (FI)
Application Number:
PCT/FI1997/000538
Publication Date:
May 22, 1998
Filing Date:
September 09, 1997
Export Citation:
Assignee:
ABB INDUSTRY OY (FI)
HENTUNEN ERKKI (FI)
MULTANEN TERO (FI)
HENTUNEN ERKKI (FI)
MULTANEN TERO (FI)
International Classes:
B63J3/02; H02J1/12; H02J1/10; H02J5/00; H02J11/00; H02P9/04; H02P9/08; (IPC1-7): H02J1/10
Foreign References:
| EP0378085A2 | 1990-07-18 | |||
| EP0536876A1 | 1993-04-14 | |||
| US4330743A | 1982-05-18 | |||
| US4883973A | 1989-11-28 | |||
| EP0257385A1 | 1988-03-02 | |||
| US4007407A | 1977-02-08 |
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