Real-Time Electromagnetic Transient Simulation for Regional Power Grid Based on Cloudpss

As the penetration of renewable energy and power electronic devices increases in power grids, electromagnetic transient (EMT) simulation is essential for analysing the system characteristics in the future. However, constructing and analysing a large-scale power system in EMT simulation software cost too much time and computation resources. This paper first develops a tool to automate the modelling process, then proposes a method to optimize the network partition scheme based on the long transmission line decoupling model (LTLD), and finally balances the computation load for real-time EMT simulation applications. The proposed method is implemented on the CloudPSS platform and verified with a large-scale provincial grid. The test results show that the simulation results of the scheme are reliable, and the real-time simulation of the grid can be achieved.