Simulation Comparisons among Neural Networks Control, Model-free Adaptive Control and PID Control

Under the identical conditions, three different control strategies only using I/O data are compared through simulations. The three controlled systems are taken from Ref.[1] and Ref.[5], each of which has its own advantages and shortcomings. Simulation results indicate that the model-free control method is superior to the other two methods because it can deal well with the control problem of the discrete time nonlinear plant whose structure, parameters and order are time-varying.