Project Description: Sliding mode control (SMC) has gained its importance in the control domain due to its invariance property to uncertainty. Despite its robustness, it is lamed in the field of practice due to the problem of chattering. Chattering (A high-frequency oscillation around the equilibrium point) is the phenomenon by which the control input requires a high-frequency oscillating signal. This signal is not accepted by many actuators. • Therefore, to reduce the chattering effect we devised a new method, “Energy Absorbent Sliding Surface-based SMC”. • For the comparison purpose I have already designed and simulated different existing SMC techniques for magnetic ball levitation system (MAGLEV) such as Conventional SMC, Quasi-SMC, and Higher-Order SMC (HOSM). • Another approach I have also designed a modified PI switching surface i.e. PID switching surface. System information and Tools: The proposed system is simulated using MATLAB/SIMULINK. The control design has been implemented on a magnetic ball levitation system (MAGLEV). Documentation: Some of the artifacts (Literature document, model design document) are to be documented.

Controlling any practical systems with only output information makes the control design more feasible as compared to state-based designs. In addition to that, adding robustness by the inherent nature of sliding mode control, Control design becomes robust with state estimation and disturbance observation. • Mathematical advancement of Multirate output feedback control with hardware implementation for Buck converter and DC motor is done. • Sensor requirements are replaced by discrete-time sliding mode observer for cost effectiveness and ease of implementation. It has been tested for the Modular Multilevel Converter case. System information and Tools: The proposed system is simulated using MATLAB/SIMULINK. The control design has been implemented via DSpace 1104.