MATLAB Implementation of Sliding Mode Variable Structure Control Based on Discrete Reaching Rate

Sliding Mode Variable Structure Control based on discrete reaching rate is a widely-used control methodology that ensures system stability and superior performance even in the presence of nonlinearities, uncertainties, and external disturbances. This control approach enables adaptive adjustment of control parameters according to the system's current state and desired output values, achieving optimal control performance. The MATLAB implementation includes key functions for calculating the sliding surface, designing the discrete reaching law, and implementing the variable structure control algorithm. The program features modular code structure with separate functions for system modeling, controller design, and performance evaluation, allowing engineers and researchers to quickly develop and test custom control algorithms. Implementation highlights include discrete-time system handling, reaching rate parameter tuning, and stability analysis tools to meet diverse application requirements.