Research on Simulation of Improved Sliding Mode Variable Structure Control

摘要

Sliding mode variable structure control theory is a kind of control method deriving from the development of computer. It has unique and excellent robustness to the system parameter perturbation, external disturbance, system uncertainty and so on, and the algorithm is simple. In this thesis, compared with the traditional equal velocity trending law and traditional exponential velocity trending law, the chattering problem of sliding mode variable structure control system is improved. The results show that the advantages of the improved exponential velocity trending law in preventing and eliminating chatter are summarized, and a feasible control scheme is proposed, which has achieved good results in solving the chattering problem of variable structure control systems. It provides a feasible solution for simply and quickly solving system stability problems and improving system performance.