A Ripple Minimization Strategy for Direct Torque and Flux
Control of Induction Motors using Sliding Modes
M.E. Romero, Julio H. Braslavsky and M.I. Valla, Internal Report
IACI, Universidad Nacional de Quilmes, September 2001.
Submitted to the
15th IFAC World Congress on
Automatic Control.
Download Report in PDF.
Abstract: We present a direct torque and flux control (DTFC) design for an electric induction motor using a sliding-mode control technique. A distinctive feature of our approach is that, by appropriately parameterizing and implementing the sliding-mode controller, we explicitely take into account the discontinuous nature of the actuator in the design process. As a result, we obtain an improved implementation of DTFC, which significantly reduces the number of commutations and the levels of steady-state ripple with respect to those typically obtained with conventional implementations of DTFC.
Related links: Direct Torque Control (ABB).