For improving robustness of hybrid energy storage system and DC micro-grid

the back-stepping adaptive variable structure control is proposed by combining back-stepping control and variable structure control the basis of DC/DC state space averaging model with unknown upper bound.The simulation model of independent DC micro-grid is set up in Matlab/Simulink.It is shown by the simulation result that the back-stepping adaptive variable structure control can

compared with PI control

effectively suppress the overvoltage of the bus of DC micro-grid in the sudden change of load

shorten voltage stability timeand improve robustness of the hybrid energy storage system and of DC micro-grid.