Application of Switching Functions on Inverted Pendulum System Rishabh Selot 1 and Dr. Jyoti Ohri 2 1-2 Dept of Electrical Engg, National Institute of Tecnology, Kurukshetra Email: rishabh_32014117@nitkkr.ac.in, ohrijyoti@nitkkr.ac.in Abstract—In several investigations on control systems, sliding mode control has been identified as a beneficial instrument. The system is stable due to SMC's tolerance to instabilities and model heterogeneity. Furthermore, the chattering phenomena hinders system performance and may possibly lead to disruption. This paper deals with the application of different switching functions on inverted pendulum system. Further the comparison between them has also been done. Simulation results are given to demonstrate the effectiveness of the proposed approaches. Index Terms— inverted pendulum, sliding mode control (smc), dynamical object, non-linear control, saturation function, signum function, Hyperbolic function. I. INTRODUCTION In industrial applications, inverted-pendulum systems always present a number of issues, such as variable nonlinear behaviours under different operating circumstances. Extrinsic interferences and physical restraints some variables.[1] Consequently, the objective of real-time stabilising controlling the tracking of a highly nonlinear unstable inverted pendulum system has been a difficulty for the current control community. In recent years, the control difficulties of inverted-pendulum systems have been thoroughly researched due to the challenging requirement for rapid and precise performance[2]. The mechanical structure of these systems can be categorised into three basic kinds, as described in the literature. One is a pendulum with one degree of freedom (dof) set on a base that rotates around the vertical axis or is controlled by a linear slide. The second is a double[3] or triple inverted pendulum[4] with many dofs that is driven by a cart. A second example is a two-dof pendulum mounted on a robot with decoupled or weakly coupled linkages. Earlier research include controlling methods like pd,pid,mpc on inverted pendulum[5]. The inverted pendulum device is recognized basic experimental in electronic control control theory and a common physical prototype in control theory education and research. The system's stability control is remarkably equivalent to those of walking robots, aircraft, and elevator hook devices[6]. As a controlled device, the inverted pendulum system is inexpensive and seems to have a basic design. Like a control mechanism, an inverted pendulum system has a basic structure and a cheap cost. Combining mechanics, mathematics, and electrical, In the system of inverted pendulums, the control device has a wide range of applications. The inverted pendulum, as a controlled object, is a greater, volatile, multivariate, non - linear, strong-coupling, and rapid system.[7] Only if suitable control mechanisms are established can it be stable. The inverted pendulum would be both broad and representative of stability control issues. Consequently, it has substantial theoretical relevance and real applications significance for pendulum exploration. Grenze ID: 01.GIJET.9.1.528_1 © Grenze Scientific Society, 2023 Grenze International Journal of Engineering and Technology, Jan Issue