Predictive Power Flow Simulator for SCADA Systems

This technical report discusses the implementation of a predictive power flow simulator designed for supervisory control and data acquisition (SCADA) systems. The simulator operates on a substation-hardened automation controller and utilizes the IEC 61131-3 standard. It provides operators with a human-machine interface (HMI) that visualizes real-time data from field intelligent electronic devices (IEDs). The report outlines the simulator's capabilities, including the ability to simulate switching operations and assess their steady-state impacts on the power system. It highlights the limitations of traditional power flow algorithms and introduces the universal power flow (UPF) algorithm, which accommodates both islanded and grid-connected systems. The document details the architecture of the SCADA system and the predictive simulator, emphasizing their independent operation. Additionally, it describes the user interface and the requirements for implementing the simulator, including necessary measurements and data sheets. The report concludes with a discussion of the power system used for testing and various simulation scenarios.