Title :
DSP-based minmax speed sensorless induction motor drive with sliding mode model-following speed controller
Author :
Lin, F.-J. ; Shyu, K.-K. ; Wai, R.-J.
Author_Institution :
Dept. of Electr. Eng., Chung Yuan Christian Univ., Chung Li, Taiwan
fDate :
9/1/1999 12:00:00 AM
Abstract :
A speed sensorless induction motor (IM) drive with a sliding mode model-following speed controller is introduced. First, the speed estimation algorithm, based on the minmax control theory, and its stability analysis are described. An integral-proportional (IP) speed controller using the estimated speed signal is designed to obtain the desired control performance of command tracking. Moreover, to increase the robustness of the IM drive, a sliding mode model-following controller is added, where the state-space equation of the nominal designed IP speed control loop is selected as the reference model. To increase the accuracy of the estimator, the speed estimation algorithm is implemented using a digital signal processor
Keywords :
control system analysis; control system synthesis; induction motor drives; machine theory; machine vector control; minimax techniques; model reference adaptive control systems; parameter estimation; robust control; two-term control; variable speed drives; variable structure systems; velocity control; DSP-based minmax speed sensorless control; command tracking; control design; control performance; control simulation; estimated speed signal; integral-proportional speed controller; minmax control theory; robustness; sliding mode model-following speed control; speed estimation algorithm; speed sensorless induction motor drive; stability analysis; state-space equation;
Journal_Title :
Electric Power Applications, IEE Proceedings -
DOI :
10.1049/ip-epa:19990165
