Model predictive control considering cyber-physical system to dampen low frequency oscillation of interconnected power systems

With the infusion of information communication technology (ICT) and power infrastructures, the power systems is becoming a large and complex cyber physical system (CPS). In the CPS, a crucial problem for the evaluation of control systems to face disturbances/faults is transmission time delay in the communication network. In this paper, a hybrid simulation model is established to simulate the operation of CPS, and the time delay is considered in the design process of model predictive control (MPC) based low-frequency oscillation (LFO) damping controller. In the proposed model, the IEEE benchmark two areas interconnected power system with a flexible ac transmission system (FACTS) device is established in the MATLAB/Simulink environment, and the information systems with advanced cyber control center is established in the Microsoft Visual Studio environment. The utility communication network of 3G and fiber optic access is adopted to transmit operation and control data between the aforementioned environments, and the communication time delay is considered sufficiently. In this way, a CPS closed- loop control is formed. Finally, a case study is used to validate the established hybrid simulation model as well as the performance of cyber control center.