Research on Collaborative Control Strategy for an Integrated Electricity-Heat-Hydrogen Energy System Based on Multiphysics Dynamic Coupling

In view of the dynamic coupling issues among multiple physical fields in current integrated energy systems, this study proposes a collaborative control strategy for integrated electricity-heat-hydrogen systems. A multi-physics simulation and visualization analysis were implemented by interfacing a simulation kernel through the CloudPSS platform. Simulation results indicate that by comprehensively considering factors such as time-of-use electricity pricing, pipeline thermal inertia, and renewable energy utilization, and by coordinating the operation of various devices in an optimized manner, the proposed strategy significantly enhances wind power absorption and the system’ s peak regulation capability. When facing extreme load shocks, the integrated electricity-heat-hydrogen collaborative system leverages hydrogen storage tanks to deliver peak regulation power to the fuel cell, maintaining regulation for nearly 2 hours. Additionally, by adopting a variable temperature control strategy that effectively exploits the peak-valley electricity price difference, the economic performance is optimized. Compared with a simple control strategy that only considers electricity-heat coupling, the proposed collaborative strategy reduces the system operating cost by 15.4%, demonstrating its advantages in improving system safety, flexibility, and economic efficiency.