EP 1969714 A1 20080917 - METHOD FOR DETERMINING THE MAGNET TEMPERATURE IN SYNCHRONOUS MACHINES
Title (en)
METHOD FOR DETERMINING THE MAGNET TEMPERATURE IN SYNCHRONOUS MACHINES
Title (de)
VERFAHREN ZUM BESTIMMEN DER MAGNETTEMPERATUR BEI SYNCHRONMASCHINEN
Title (fr)
PROCEDE POUR DETERMINER LA TEMPERATURE DE L' AIMANT SUR DES MACHINES SYNCHRONES
Publication
Application
Priority
- EP 2006069841 W 20061218
- DE 102005062588 A 20051227
Abstract (en)
[origin: DE102005062588A1] The method involves measuring the phase voltage (U ind) and the rotational speed (n) of a permanently excited electrical machine e.g. synchronous machine (1), and determining a magnet temperature of the electrical machine from the measured phase voltage and the rotational speed of the electrical machine. The phase voltage is measured in the no-load operation of the machine, where the peak value of the phase voltage is determined. The phase current of the electrical machine is limited when the magnet temperature exceeds a predetermined threshold value. An independent claim is also included for a device for determining the magnet temperature of a permanently excited electrical machine.
IPC 8 full level
H02P 29/02 (2006.01)
CPC (source: EP US)
G01K 7/42 (2013.01 - EP); G01K 13/08 (2013.01 - EP); H02P 29/0241 (2016.02 - EP US); B60L 2240/36 (2013.01 - EP US); G01K 2205/00 (2013.01 - EP); G01K 2217/00 (2013.01 - EP); G01R 31/343 (2013.01 - EP US); Y02T 10/64 (2013.01 - EP US)
Citation (search report)
See references of WO 2007074097A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 102005062588 A1 20070628; EP 1969714 A1 20080917; US 2009174351 A1 20090709; US 8222844 B2 20120717; WO 2007074097 A1 20070705
DOCDB simple family (application)
DE 102005062588 A 20051227; EP 06830681 A 20061218; EP 2006069841 W 20061218; US 8725306 A 20061218