Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2011-03-22
2011-03-22
Masih, Karen (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S799000, C318S490000
Reexamination Certificate
active
07911176
ABSTRACT:
A method for determining rotor position comprising sending a signal to a stator, receiving a first signal indicative of a first estimated stator inductance, and receiving a second signal indicative of a second estimated stator inductance. The method further includes, calculating a first rotor position angle using a function including the first estimated stator inductance and the second estimated stator inductance.
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patent: 5371458 (1994-12-01), Heikkila
patent: 6369541 (2002-04-01), Albert
patent: 2002/0125783 (2002-09-01), Morinigo
patent: 2007/0252587 (2007-11-01), Stauder et al.
patent: 10311028 (2004-10-01), None
patent: 0793337 (1997-09-01), None
European Search Report for EP Application No. 09166035; Search Report completed Oct. 8, 2009.
Datta Rajib
Garces Luis J.
Huang Xianghui
Ritter Allen Michael
Cantor & Colburn LLP
General Electric Company
Masih Karen
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