G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 3/00 (2006.01) H02P 21/00 (2006.01) H02P 21/12 (2006.01)
Patent
CA 2344645
The invention relates to a method for determining the torque (mk) of an induction machine (2). According to the invention, the space vector (k-) of the interlinked stator flux is determined from the stator terminal voltages (u1, u2, u3) and from the stator terminal currents (i1, i2, i3) by means of integration and subsequent high-pass filtering. In addition, the torque (mk) is calculated from this space vector by multiplying with a complex correction factor (C-). The device for carrying out the inventive method has computing elements (8, 10, 12, 14) suited therefor.
L'invention concerne un procédé permettant de déterminer le couple (m¿k?) d'une machine inductive (2), selon lequel l'indice spatial (?¿k??-¿) du flux statorique enchaîné est déterminé à partir des tensions aux bornes statoriques (u¿1?, u¿2?, u¿3?) et des courants aux bornes statoriques (i¿1?, i¿2?, i¿3?), par intégration et filtrage par filtre passe-haut. Le couple (m¿k?) est calculé à partir de l'indice spatial, par multiplication avec un facteur de correction complexe (C?-¿). Le dispositif approprié pour mettre ledit procédé en oeuvre comporte des unités de traitement (8, 10, 12, 14) adaptées.
Griepentrog Gerd
Runggaldier Diethard
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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