Title :
Sensor-less speed control of an induction motor with no influence of secondary resistance variation
Author :
Kanmachi, Toshiyuki ; Taahashi, I.
Author_Institution :
Dept. of Electr. Eng., Nagaoka Univ. of Technol., Niigata, Japan
Abstract :
Calculation methods for the rotor and the secondary resistance of an induction motor are proposed. The first method is a rotor speed calculation method by which the exact speed can be computed directly. The method does not require information about the secondary resistance, which makes it free from the variation of the secondary resistance. The second method is a direct secondary resistance calculation method. It can be applied to compensation in speed sensorless vector control for exact speed extimation of a secondary resistance. The effectiveness of the proposed methods was verified by digital simulation and experimental results. The influence of the machine and control circuit parameters is also examined
Keywords :
control system analysis computing; digital simulation; electric machine analysis computing; induction motors; machine control; parameter estimation; rotors; velocity control; compensation; digital simulation; induction motor; machine theory; parameter estimation; rotor; secondary resistance; speed calculation; speed sensorless vector control; Circuits; Electric resistance; Equations; Error correction; Induction motors; Machine vector control; Open loop systems; Rotors; Sensor systems; Velocity control;
Conference_Titel :
Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-1462-X
DOI :
10.1109/IAS.1993.298956
