Modeling approach for real-time capable oversampling models applied to a fast switching LLC resonant converter

HIL simulation of power electronics is an ambitious task due to the fast structural changes of the electrical circuit caused by the forced and natural switching events and the high dynamics enabled by new semiconductor devices. Especially for strict requirements, such as high switching frequencies, circuit-specific implementations are required. This paper deals with a modeling approach for oversampling models with ideal switches and its implementation on an FPGA using multiplexed matrix-times-vector multiplication to adjust the FPGA utilization. As application example, an LLC resonant converter is used.