Design of Data Distributed Service-Based Distributed Co-Simulation Platform of Power Systems

Recent rapid developments of distributed renewable energy resources result in difficulties in dynamic simulations of comprehensive power system models. To speed up the simulation process, this paper presents a distributed co-simulation framework for simulation of large-scale power system. First, distributed and decoupled model of a large-scale integrated model power system is obtained via decoupling the entire power system model into interconnected sub-systems. Then, the model interface between components such as generators/load and the power network is developed. Meanwhile, the data distribution service (DDS) is adopted to enable a data exchange among components and different subsystems. Finally, an DDS-based distributed co-simulation platform with synchronous simulations of sub-systems is proposed and implemented under Matlab/Simulink environment. The proposed platform has been implemented and verified via two case studies. Simulation results confirm the accuracy and the scalability of the proposed co-simulation platform.