Sliding mode based control strategy for multi-sources renewable energy system

This paper concerns the control design of multi-sources renewable energy systems. Dynamic equations describing the coupling of buck converters are derived and a robust sliding mode dynamic controller is designed. The aim is to show that the proposed control gives good results in terms of robustness and stability according to the fluctuations of renewable sources and the load variations, without the use of cascade structure commonly used in literatures. The simulation results are presented and show a fast dynamic response of the DC bus voltage and robustness to load and input voltage variations.