Title :
Sensorless vector controllers for induction motor drives
Author :
Lai, Y.S. ; Liu, C.N. ; Chang, K.Y. ; Luo, Y.C. ; Lee, C.I. ; Liu, C.H.
Author_Institution :
Dept. of Electr. Eng., Nat. Taipei Inst. of Technol., Taiwan
Abstract :
The development and implementation of sensorless vector controllers based on stator flux-oriented control (SFOC) and rotor flux-oriented control (RFOC) are presented. For flux estimation, instead of measuring phase voltages directly or estimating phase voltages indirectly using switching states and DC link voltage, the voltage command for inverter control is used and therefore only current sensors are required. The effect of dead time on speed control at low speed range is highlighted and the details of dead time compensation are presented. Simulation results from a model-based computer-aided design approach using Simulink, and experimental results are presented to confirm the theoretical analysis and hardware design
Keywords :
control system CAD; control system analysis computing; electric machine analysis computing; induction motor drives; machine control; machine theory; magnetic flux; rotors; software packages; stators; variable speed drives; velocity control; Simulink; computer simulation; control design; control simulation; dead time compensation; flux estimation; induction motor drive; inverter control; low speed range; model-based computer-aided design; rotor flux-oriented control; sensorless vector controllers; speed control; stator flux-oriented control; voltage command; Current measurement; Induction motor drives; Inverters; Phase estimation; Phase measurement; Rotors; Sensorless control; State estimation; Stators; Voltage control;
Conference_Titel :
Power Electronics and Drive Systems, 1997. Proceedings., 1997 International Conference on
Print_ISBN :
0-7803-3773-5
DOI :
10.1109/PEDS.1997.627438
