| Title |
A Study on DC Distribution System Modeling and BESS Operation Strategy Using PSCAD/EMTDC |
| Authors |
Geonu Jeon ; Seung-Yoon Lee ; Sun-Ho Yu ; Dong-Wook Kim ; Dong-Geun Lee |
| DOI |
https://doi.org/10.5207/JIEIE.2026.40.3.174 |
| Keywords |
Battery energy storage system; DC distribution system; Electromagnetic transient; Solid state transformer |
| Abstract |
This paper presents the modeling and operational analysis of a DC distribution system based on PSCAD/EMTDC simulation. The proposed system represents a DC distribution system architecture integrating various power electronic converters, rotating loads, renewable energy sources such as photovoltaic generation, and a battery energy storage system (BESS). The system is modeled at the electromagnetic transient (EMT) level to capture switching dynamics and transient interactions among converters and loads. The DC distribution network consists of an AC/DC interlinking converter based on a solid-state transformer (SST), isolated and non-isolated DC/DC converters, motor drive systems, and BESS connected to a common DC bus. In addition, BESS-based operational strategies including peak load management and DC voltage stabilization using droop control are investigated. Simulation results demonstrate that the proposed DC distribution system model can effectively maintain DC bus voltage stability and support peak load reduction under various operating conditions. The developed PSCAD/EMTDC model provides a useful platform for analyzing the dynamic characteristics and control strategies of future DC power systems. |