In order to realize fast electromagnetic transient simulation for the electric power system with large-scale renewable energy integration

this paper proposes a graphics processing unit(GPU)based parallel algorithm oriented to the exponential integration method for electromagnetic transient simulation. Firstly

the high degree of data parallelism in the solving process of matrix exponential integration algorithm is analyzed. Then

this feature is combined with GPU computing resources. Large-scale matrix operations required by the exponential integration method are processed by GPU while the complex parts such as system status calculation and update remain in CPU. The simulation speed is effectively improved through these measures. Finally

the parallel algorithm is tested in the wind farm with 17 and 100 wind turbines

respectively. The correctness and efficiency of the proposed parallel algorithm are verified. It also shows that the acceleration of the algorithm will be more obvious for large-scale systems.