Title :
Sensorless control for induction motor drives based on new speed identification scheme
Author :
Perng, Shuh-Shing ; Lai, Yen-Shin ; Liu, Chang-Huan
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Inst. of Technol., Taipei, Taiwan
Abstract :
A sensorless controller, which is based upon the proposed synchronous speed identification scheme for induction motor drives, is presented in the paper. In comparison with previous results, which involve temperature-sensitive parameters including rotor and/or stator resistors, the proposed MRAS synchronous speed identification scheme requires neither rotor time constant nor stator resistance in both reference and adjustable models. It is shown that the new sensorless controller for induction motor drives consists of feedforward control of stator voltage and the new MRAS synchronous speed identification scheme, and does not invoke rotor resistance and voltage sensors. Simulation and experimental results are presented to confirm the theoretical analysis
Keywords :
control system analysis; control system synthesis; feedforward; induction motor drives; machine control; machine testing; machine theory; model reference adaptive control systems; parameter estimation; rotors; stators; variable speed drives; velocity control; MRACS; MRAS synchronous speed identification scheme; control design; control performance; control simulation; feedforward control; induction motor drives; rotor; sensorless speed control; speed identification scheme; stator; stator voltage regulation; Analytical models; Equations; Frequency estimation; Induction motor drives; Reactive power; Resistors; Rotors; Sensorless control; Stators; Voltage control;
Conference_Titel :
Power Conversion Conference - Nagaoka 1997., Proceedings of the
Conference_Location :
Nagaoka
Print_ISBN :
0-7803-3823-5
DOI :
10.1109/PCCON.1997.638228
