MATLAB Implementation of Sliding Mode Control with M-File and SIMULINK Simulation

This MATLAB program provides a complete implementation of sliding mode control through both M-file scripting and SIMULINK simulation environments. The core control module is developed using S-functions, which offer enhanced robustness and computational efficiency for complex control systems. The implementation handles various challenging control scenarios through a sliding surface design that ensures system stability and disturbance rejection. Key features include: - M-file implementation containing the main sliding mode control algorithm with adjustable parameters for controller tuning - SIMULINK model showcasing real-time simulation capabilities with customizable input signals - S-function based modules implementing the sliding mode control law using mathematical formulations for reaching and sliding phases The program effectively manages complex control challenges through: 1. Variable structure control strategy with switching logic 2. Chattering reduction techniques using boundary layer methods 3. Lyapunov stability-based controller design ensuring system convergence The intuitive interface allows users to modify control parameters, observe system responses, and analyze performance metrics. This implementation serves as an ideal foundation for both beginners learning sliding mode control principles and experienced engineers developing advanced control systems. The code structure facilitates easy customization for specific applications while maintaining the robustness inherent to sliding mode control methodologies.