Integral sliding mode control for improved robustness and accuracy of induction motors
Document Type
Conference Item
Publication Date
7-1-2008
Abstract
This paper proposes the use of sliding mode control to improve the performance of field-oriented speed controllers of induction motors. The integral sliding mode control provides means to obtain an accurate estimate for disturbances and plant parameter perturbations. This estimator is to be used as an auxiliary control loop to reject these disturbances and parameter perturbations while avoiding chattering in the main control loop. The result is a controller with high degree of robustness and accuracy. Stability is achieved by using a design procedure based on a Lyapunov function. The feasibility of implementing such controllers is verified on a highly nonlinear system, an induction motor. Whether loaded or unloaded, the proposed integral sliding mode controller has proved to achieve high performance.
Keywords
Disturbance rejection, Output feedback control, Robust control of nonlinear systems, Auxiliary control, Control loop, Degree of robustness, Design procedure, Highly nonlinear, Integral sliding mode, Integral sliding mode control, Output feedback control, Parameter perturbation, Plant parameters, Speed controller
Divisions
fac_eng
Event Title
17th World Congress, International Federation of Automatic Control, IFAC
Event Location
Seoul,South Korea
Event Dates
6 - 11 July 2008
Event Type
conference
Additional Information
Volume 17 Issue 1 PART 1 ISSN: 14746670 ISBN: 978-390266100-5 DOI: 10.3182/20080706-5-KR-1001.2455