Real-time Simulation of High-speed Flywheel Energy Storage System (FESS) for Distribution Networks

Abstract

Real-time simulations enable interactions of the simulated models with hardware in real clock time. This means that in case of suitable interfacing, it can lead to Power-Hardware-in-the-Loop (PHIL) testing. PHIL testing is an efficient and cost-effective method to study the behavior of new power system components under various circumstances. In order to set-up a PHIL testing, it is advantageous to have accurate real-time simulation models of the hardware to be tested. The new-generation Flywheel Energy Storage System (FESS), which uses High-Temperature Superconductors (HTS) for magnetic levitation and stabilization, is a novel storage technology. Due to quick response times and high power densities, this new-generation FESS is especially suitable for enhancing power quality and transient stability of the grid. In this poster, modeling and implementation of the model of a FESS with HTS bearings in a real-time simulation environment are presented. The obtained real-time simulation results confirm the effectiveness of using such a FESS for voltage sag compensation in distribution networks and contributing to the frequency regulation. For the purpose of validation of the computations, all real-time simulation results have been cross-checked with adequate non-real-time ones.