Accurate simulation of a 6-pulse inverter with real-time event compensation in ARTEMIS™

This paper presents new simulation software that allows the efficient and accurate fixed-time-step simulation of complex event-based electrical systems. The software, named Advanced Real-Time Electro-Mechanical Transient Simulator (ARTEMIS(TM)), accurately simulates time-segment linear systems with discontinuities occurring anywhere between time-steps. The new software is used for the simulation of energy and power system dynamics, and is implemented in the ARTEMIS(TM) add-on for Simulink's Power System Blockset (PSB). With ARTEMIS(TM) real-time compensation of switching events (RTE), the between-step events are transparently taken into account and compensated for in the simulation results. This eliminates sub-synchronous jitter while causing only minor increase in both the average time-step and real-time time-step (typically < 10%), making ARTEMIS(TM) with RTE suitable software for real-time simulation of precision-critical hardware-in-the-loop (HIL) electromechanical and drives systems. The RTE algorithm is very good at handling difficult fixed-step simulation cases, like multiple single time-step discontinuities encountered in the simulation of electric drives and power converters. (C) 2003 Published by Elsevier B.V. on behalf of IMACS.