Smart Grid Resilient Control System Based on STA Second-Order Interval Sliding Mode Observer

At present, distributed renewable energy has made smart grids a hot spot of research in the Cyber-Physical System (CPS) field. This paper mainly discusses the problem of the control system of insulated-gate bipolar transistors (IGBTs) in the distributed three-phase inverter. The second-order sliding mode observer based on a super-twisting algorithm (STA) is used to observe the control system. The three-phase current of the smart grid is observed by the device, to improve the efficiency of the control system in the smart grids under different conditions.