A NOVEL ROBUST HYBRID BS_NSTASOSM CONTROL STRUCTURE FOR VECTOR CONTROL FOC OF SPIM DRIVES CẤU TRÚC ĐIỀU KHIỂN LAI BỀN VỮNG MỚI BS_NSTASOSM CHO FOC CỦA HỆ TRUYỀN ĐỘNG SPIM

Abstract

In this paper, a novel robust hybrid control structure based on the combination between (NSTA_SOSM) second- order sliding control using super-twisting algorithm and the (BS) Backstepping for vector control of SPIM drive systems is proposed. This structure effectively solves the weaknesses of both traditional (BS) Backstepping control and (SM) sliding control, develops and enhances the performance of FOC control by combining second-order sliding control using super-twisting algorithm to increase convergence speed and the reference tracking ability more quickly and accurately, the new controller works robust and stably even when working in conditions of uncertain parameter systems and load disturbances, the chattering phenomenon is almost eliminated. The obtained results by simulation using the Matlab/Simulink tool verified the performances of new proposed control constructure.