RT Journal Article T1 Discrete sliding mode control based on exponential reaching law and time delay estimation for an asymmetrical six‐phase induction machine drive A1 Kali, Yassine A1 Saad, Maarouf A1 Doval Gandoy, Jesús A1 Rodas, Jorge A1 Benjelloun, Khalid K1 3307 Tecnología Electrónica AB This study deals with the problem of controlling rotor speed and stator currents of an asymmetrical six-phaseinduction machine with uncertain dynamics, disturbances, and unmeasurable rotor currents and proposes a robust non-linearvariable structure controller. First of all, an outer control loop based on a proportional–integral regulator is performed to controlthe rotor speed and to construct the desired stator current references. Then, the inner loop is performed based on the proposedmethod that combines the time delay estimation method and discrete sliding mode control based on exponential reaching law.This structure allows an accurate and simple estimation of uncertainties and rotor currents, a high-tracking precision, aconvergence of the stator currents to their known desired references in finite-time and chattering reduction. The designprocedure is detailed step by step and the stability analysis and the convergence time are established for the current closedloop system. Experimental work was carried out on an asymmetrical six-phase induction motor drive to show the effectivenessand performance of the proposed robust non-linear discrete method. The results obtained highlighted the good trackingperformance of the stator currents PB IET Electric Power Applications SN 17518660 YR 2019 FD 2019-11 LK http://hdl.handle.net/11093/7245 UL http://hdl.handle.net/11093/7245 LA eng NO IET Electric Power Applications, 13(11): 1660-1671 (2019) DS Investigo RD 25-ene-2025