| 54 |
Titel |
TI |
[EN] Torque shudder protection device and method |
| 71/73 |
Anmelder/Inhaber |
PA |
GEN ELECTRIC, US
|
| 72 |
Erfinder |
IN |
DE DONCKER RIK W A A, US
;
KING ROBERT D, US
;
SZCZESNY PAUL M, US
|
| 22/96 |
Anmeldedatum |
AD |
25.10.1995 |
| 21 |
Anmeldenummer |
AN |
54806495 |
|
Anmeldeland |
AC |
US |
|
Veröffentlichungsdatum |
PUB |
11.03.1997 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
|
| 51 |
IPC-Hauptklasse |
ICM |
H02P 5/408
|
| 51 |
IPC-Nebenklasse |
ICS |
|
|
IPC-Zusatzklasse |
ICA |
|
|
IPC-Indexklasse |
ICI |
|
|
Gemeinsame Patentklassifikation |
CPC |
B60L 15/025
B60L 2220/12
B60L 3/00
Y02T 10/64
|
|
MCD-Hauptklasse |
MCM |
|
|
MCD-Nebenklasse |
MCS |
B60L 15/02
(2006.01)
B60L 3/00
(2006.01)
|
|
MCD-Zusatzklasse |
MCA |
|
| 57 |
Zusammenfassung |
AB |
[EN] A torque shudder protection device for an induction machine includes a flux command generator for supplying a steady state flux command and a torque shudder detector for supplying a status including a negative status to indicate a lack of torque shudder and a positive status to indicate a presence of torque shudder. A flux adapter uses the steady state flux command and the status to supply a present flux command identical to the steady state flux command for a negative status and different from the steady state flux command for a positive status. A limiter can receive the present flux command, prevent the present flux command from exceeding a predetermined maximum flux command magnitude, and supply the present flux command to a field oriented controller. After determining a critical electrical excitation frequency at which a torque shudder occurs for the induction machine, a flux adjuster can monitor the electrical excitation frequency of the induction machine and adjust a flux command to prevent the monitored electrical excitation frequency from reaching the critical electrical excitation frequency. |
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt |
CT |
US000004633982A
US000004963804A
US000004968925A
US000005144216A
US000005166593A
US000005301522A
US000005469820A
US000005534764A
|
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt |
CT |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt |
CTNP |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt |
CTNP |
|
|
Zitierende Dokumente |
|
Dokumente ermitteln
|
|
Sequenzprotokoll |
|
|
|
Prüfstoff-IPC |
ICP |
H02P 21/00
H02P 7/44 D
|
