Parallel Transmission Distribution Co-simulation Leveraging A Commercial Distribution Simulator

This paper introduces a high-performance computing (HPC) implementation of the large-scale transmission and distribution (T/D) power flow co-simulation. A distinguishing aspect of this implementation is that a commercial grade simu-lator, CYMDIST, is integrated into the co-simulation platform to simulate the distribution power flow. It is believed to be the first effort for incorporating commercial distribution grid simulator in an HPC enabled co-simulation platform. However, the speedup of the presented co-simulation platform has a upper bound, and it is analyzed and formulated in the case study.