This project was initiated in response to a request from the Technical Advisory Board (TAB) of The National HVDC Centre. It aims to develop an EMT-based test harness for AC short-circuit fault studies and to compile benchmark fault-response results for modern power system components, including grid-following and grid-forming HVDC converters, STATCOMs, wind farms and other inverter-interfaced resources.
As modern power systems increasingly rely on power electronic converters, traditional RMS or phasor-based short-circuit tools are often unable to capture fast sub-cycle dynamics, asymmetrical fault behaviour, resonance phenomena and converter control interactions. EMT simulation provides the level of fidelity required to assess these behaviours under realistic fault conditions.
Using PSCAD, RTDS and OPAL-RT platforms, this work will establish a reusable and configurable framework for applying AC faults, capturing dynamic system responses, and supporting consistent reporting, comparison and training. The project will focus on EMT-based analysis and support qualitative comparison of short-circuit behaviour across different EMT tools and models available at the HVDC Centre.
