Unified Simulation and Verification Technology for Primary and Secondary Control in Power Systems Based on Digital Stability Control System

This paper investigates the co-simulation verification technology for primary and secondary systems of power grids based on a digital stability control system, aiming to address the challenges of scalability, flexibility, and completeness in traditional physical testing platforms. A digital simulation framework was established, and a generic modeling method for stability control devices was developed. The Aurora protocol was utilized to enable communication of electrical and control signals between different simulation platforms. Function and strategy verification was conducted in the Jin-Su project scenario. The results demonstrated the model's accuracy in signal transmission, logic judgment, and strategy execution, enabling precise responses to various fault scenarios.