Evaluation of High Solar Penetration Impact on Bulk System Stability through a Transmission-Distribution Dynamics Co-simulation

conference paper
conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE) in 2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2)

Abstract

Currently, utilities are greatly interested in understanding the interactions between power transmission and distribution, particularly those that impact bulk power stability, as the penetration of distributed energy resources increases. In this paper, we present a transmission and distribution dynamic co-simulation to assess the impacts of increasing distributed photovoltaic (DGPV) penetration on bulk power stability. This method uses a non-iterative coupling algorithm to link the separate dynamic simulators for transmission and distribution systems. We carry out case studies of an IEEE 14-bus transmission system with IEEE 8500-node distribution feeders for disturbances such as loss of generation, faults on the transmission and distribution under different PV penetration levels.

Keywords

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