Power Systems Modelling and Digital Twins for Real Time Simulations

The Digital Twin (DT) has become a pivotal technology for representing, simulating, optimizing and visualizing the physical world, serving as a catalyst for digital transformation and sustainable development. This paper explores the integration of DTs in power systems, focusing on Real-Time Simulation (RTS) using Speedgoat, a widely employed real-time simulator. RTS solutions play a crucial role in modelling and simulating DTs and their services. This paper presents different strategies for RTSs of power system DTs on Speedgoat, specifically tested on a plant with Reactive Power Compensation (RPC) system and three Converter Units (CUs). The proposed approaches, developed in Simulink® Real-Time™, are discussed and demonstrated, with potential for generalization to more complex DTs. The close relationship between RTSs and DTs underscores their vital role in ensuring secure and reliable operations in future power grids.