Title :
Modified integrator for voltage model flux estimation of induction motors
Author :
Hinkkanen, Marko ; Luomi, Jorma
Author_Institution :
Power Electron. Lab., Helsinki Univ. of Technol., Finland
Abstract :
This paper deals with voltage model flux estimators for speed sensorless induction motor drives. In order to eliminate the drift problems, the pure integrator of the voltage model is replaced with a first-order low-pass filter, and the error due to this replacement is compensated. An effective way to calculate the compensation is presented, and the compensation is carried out before the low-pass filtering, in order to avoid dynamic errors
Keywords :
compensation; control system analysis; control system synthesis; induction motor drives; low-pass filters; machine theory; machine vector control; magnetic flux; parameter estimation; velocity control; drift problems elimination; dynamic errors avoidance; first-order low-pass filter; replacement error compensation; speed sensorless induction motor drives; voltage model flux estimation; Equations; Filtering; Inductance; Induction motor drives; Induction motors; Low pass filters; Rotors; Stators; Torque control; Voltage control;
Conference_Titel :
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-7108-9
DOI :
10.1109/IECON.2001.975976
