Recent Advances on Integrated Transmission and Distribution Dynamic Simulation

With the increasing penetration of inverter-based resources and other distributed energy resources (DERs) the impact of distribution level dynamics on bulk power system is becoming pronounced. Therefore, efficient methods and tools need to be developed to solve dynamics of integrated transmission and distribution (T&D) systems. The conventional methods for solving transmission dynamics on positive sequence frame would not suffice when integrated to unbalanced distribution networks. Moreover, due to the large number of devices on distribution system that contribute to the dynamics of the integrated transmission and distribution systems, there is need for developing computationally efficient methods for T&D dynamic analysis including methods that meet real-time performance. In this context, this panel proposes to bring together experts who will share their experiences and challenges in developing methods and tools to analyze integrated T&D dynamic simulation.