EP 0250552 A4 19880824 - POWER CONVERTER FOR AN ELECTRICALLY-COMPENSATED CONSTANT SPEED DRIVE.
Title (en)
POWER CONVERTER FOR AN ELECTRICALLY-COMPENSATED CONSTANT SPEED DRIVE.
Title (de)
ELEKTRISCH AUSGEGLICHENE KRAFTVERÄNDERUNG ZUM ANTRIEB MIT BESTÄNDIGER GESCHWINDIGKEIT.
Title (fr)
CONVERTISSEUR DE PUISSANCE POUR UN ENTRAINEMENT A VITESSE CONSTANTE COMPENSE ELECTRIQUEMENT.
Publication
Application
Priority
US 81239685 A 19851223
Abstract (en)
[origin: WO8703928A1] Electrically-compensated constant speed drive, CSD, (10) which includes a speed summer (18) having first and second input shafts (20, 36) and one output shaft (22). The first input shaft (20) is coupled to a variable speed prime mover (16) and the output shaft (22) develops a constant speed motive power. A speed-compensating permanent magnet machine (PMM2) couples to the second input shaft (36) of the speed summer (18). A control permanent magnet machine (PMM1) couples to the first input shaft (20) of the speed summer (18). A power converter (30) interconnects the power windings (70, 72) of these two permanent magnet machines (PMM1, PMM2). The power converter (30) comprises first and second bi-directional AC/DC converters (54, 56), a bi-directional DC/DC converter (58), and a circuit (44) for controlling the converters (54, 56, 58) so as to maintain the output shaft (22) of the speed summer (18) at a constant, desired speed.
IPC 1-7
IPC 8 full level
F01D 15/10 (2006.01); F01D 21/00 (2006.01); F02C 7/32 (2006.01); H02M 5/27 (2006.01); H02P 29/00 (2006.01)
CPC (source: EP)
F02C 7/32 (2013.01); H02M 5/272 (2013.01); H02P 29/0016 (2013.01)
Citation (search report)
- No relevant documents have been disclosed.
- See references of WO 8703928A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 8703928 A1 19870702; EP 0250552 A1 19880107; EP 0250552 A4 19880824; JP S63502046 A 19880811
DOCDB simple family (application)
US 8602656 W 19861210; EP 87900507 A 19861210; JP 50060387 A 19861210