Electrical Drives Control via Discrete-Time Variable Structure Systems with Sliding Mode

Čedomir Milosavljević; Branislava Peruničić-Draženović; Senad Huseinbegović; Boban Veselić; Milutin Petronijević

doi:10.7251/IJEEC2101001M

Čedomir Milosavljević Faculty of Electrical Engineering, University of East Sarajevo
Branislava Peruničić-Draženović Faculty of Electrical Engineering, University of Sarajevo
Senad Huseinbegović Faculty of Electrical Engineering, University of Sarajevo
Boban Veselić Faculty of Electronic Engineering, University of Niš
Milutin Petronijević Faculty of Electronic Engineering, University of Niš

DOI: https://doi.org/10.7251/IJEEC2101001M

Abstract

Modern control techniques of electrical drives (EDs) use robust control algorithms. One of such algorithms is variable structure control (VSC) with sliding mode (SM). SM control needs more information on the controlled plant than the conventional PI(D) control. Valid mathematical model of the controlled plant is necessary for the SM controller design. Generalized mathematical model of two-phase electrical machine and its adaptation to direct current (DC) and induction motor (IM) are given in this paper, employed in the cascade control structure. Also, the basic SM control theory and discrete-time controller design approach, developed by the authors, are given. Finally, experimentally realized examples of speed and position control of DC and IM are given as an illustration of the efficiency of the promoted EDs controller design via discrete-time VSC.