Title :
A variable structure controller with adaptive switching surfaces [brushless DC motor]
Author :
Lee, C.K. ; Kwok, N.M.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech., Kowloon, Hong Kong
Abstract :
A servo system with a variable structure controller (VSC) operating in the sliding mode is robust to disturbances. This advantage may not be obtained during the reaching phase. The authors propose to reduce the reaching phase duration by adapting the components of the gradient vector of the switching hypersurface to the inverse of the tracking error. The effectiveness of this method is illustrated by simulation results from a brushless DC motor velocity tracking system
Keywords :
adaptive control; brushless DC motors; machine control; robust control; servomechanisms; tracking; variable structure systems; velocity control; adaptive switching surfaces; brushless DC motor velocity tracking system; gradient vector; reaching phase; servo system; sliding mode; switching hypersurface; tracking error; variable structure controller; Adaptive control; Brushless DC motors; Control systems; Design methodology; Error correction; Programmable control; Robust control; Robustness; Servomechanisms; Sliding mode control;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.529408
