Revolutionizing power systems: New simulation methods for modern grids

As power grids increasingly rely on renewable energy sources like wind and solar, their management has become more complex. To address these challenges, researchers from Guangdong University of Technology (China) and Illinois Institute of Technology (USA) have developed new simulation methods to ensure the reliability of modern power systems. Their recent study, published in Journal of Shanghai Jiao Tong University in October 2024, offers a framework for simulating secondary systems, which handle the monitoring and control of power grids.

Secondary systems play a vital role in managing power flows, especially as grids shift towards network-based communication technologies. The researchers aimed to create a simulation model capable of handling real-time data and interactions between devices in a smart grid. "Our goal was to design a framework that supports the interconnected nature of next-generation power grids," said lead author Dr. Ruiwen He.

The team developed a model focusing on Intelligent Electronic Devices (IEDs), essential components in power grids. These devices facilitate communication between system parts and ensure the grid's stability. By aligning the model with the IEC 61850 standard, the researchers ensured compatibility and resilience in grid operations.

To test the model, the researchers simulated fault detection and response scenarios in a typical 220kV substation. The simulation accurately predicted system behavior, demonstrating the model's capability to manage real-time demands. "We were able to simulate fault recovery processes in real time, a critical aspect of grid stability," Dr. He explained.

This research is crucial for the future of power grids, particularly as they incorporate more renewable energy sources. Dr. Mohammad Shahidehpour, a co-author of the study, highlighted the importance of the work: "Our model is a step towards a fully digital, intelligent power grid capable of predicting and preventing issues."

As power grids become more decentralized and complex, robust secondary systems will be key to ensuring reliable electricity delivery. This new simulation model offers a vital tool for grid operators, paving the way for a smarter, more resilient future.