Title :
A new stator voltage third harmonic based direct field oriented control scheme
Author :
Testa, A. ; Consoli, A. ; Coco, M. ; Kreindler, L.
Author_Institution :
Dept. of Electr. Electron. & Syst. Eng., Catania Univ., Italy
Abstract :
The paper presents a new and straightforward approach to compute instantaneous position and amplitude of the airgap flux in an induction machine using the stator voltage third harmonic component. Compared to previous direct field oriented control (DFOC) schemes also using the third harmonic voltage, the proposed method is simpler and able to exploit a reliable estimation technique practically unaffected by parameter variations. The scheme can be implemented in low and medium performance induction motor drive systems and is especially suited for low speed operations. It is presently used to develop DFOC drives with different features. Experimental tests are shown in order to practically confirm the expected features of the proposed system
Keywords :
air gaps; harmonics; induction motor drives; machine control; magnetic fields; magnetic flux; magnetic variables control; parameter estimation; stators; torque control; airgap flux amplitude computation; airgap flux position computation; direct field oriented control scheme; estimation technique; flux control; induction motor drive systems; low speed operations; stator voltage third harmonic; torque control; Induction motors; Influenza; Position measurement; Predictive models; Rotors; Stators; Synchronous motors; System testing; Torque control; Voltage control;
Conference_Titel :
Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-1993-1
DOI :
10.1109/IAS.1994.345458
