Presentation Description: High-frequency power converters including DC/DC topologies like the LLC, DAB, CLLLC, and PSFB as well as single-stage AC/DC direct matrix converters using bidirectional switches present critical validation challenges that conventional HIL simulation cannot address. With switching frequencies in the range of 100 kHz to 1 MHz, traditional real-time solvers with 50-100 ns step sizes miss essential current reversals, topological transitions, and timing-critical events. Matrix converters compound these challenges further, as their bidirectional switch networks lack natural freewheeling paths and require multi-step commutation sequences. This presentation demonstrates a 4-nanosecond real-time solver key for accurate HIL validation of these high switching frequency converters and advanced control schemes previously impossible to simulate in real-time. Case studies of various DC/DC and direct matrix converters will benchmark real-time results against reference simulations, validating the approach
