The paper presents experimental results of staged transient and dynamic operation tests for various configurations of the energy storage system (ESS) in a low-voltage direct current microgrid (LVDC MG). Photovoltaic generation (PG) sources, batteries (BATTs), supercapacitors (SC), DC-DC converters, and DC loads (DCLs) are connected through a point of common coupling (PCC) in a LVDC MG prototype to perform the staged tests. Transient and dynamic operation cases of the LVDC MG prototype are performed by supplying the PG power to the PCC and adjusting DC resistive loads to attain the ESS’s behaviors for comparative assessments. In view of this, the staged tests are typically performed in two semi-activation and full activation configurations of the hybrid battery-supercapacitor (BATT-SC) ESS. As a result, the full-active configuration of the BATT-SC ESS shows the out-of-performing results rather than the semi-active configuration to quickly stabilize dynamic/transient operation cases of the LVDC microgrid.

Authors: Duong Minh Bui, Phuc Duy Le, Thanh Dung Nguyen, Khoi Minh Nguyen

Published in: World Congress on Sustainable Technologies (WCST-2021)

  • Date of Conference: 7-9 December 2021
  • DOI: 10.20533/WCST.2021.0004
  • ISBN: 978-1-913572-41-9
  • Conference Location: Virtual (London, UK)