Dynamic performance analysis of SMES for sensitive load voltage sag compensation

Based on instantaneous reactive power theory, a voltage sag compensator (VSC) integrated with superconducting magnetic energy storage (SMES) model is built and verified in PSCAD/EMTDC. The dynamic performance evaluations of the SMES-based VSC applied in the sensitive load voltage sag compensation applications are presented in details. The simulations results and related relationships obtained from different voltage sag depths and energy storage capacities are explored to suit various practical sensitive load protections with the SMES-based VSC.