FPGA based sliding mode control for high frequency power converters

Virtual prototyping is essentially the process of incremental substitution of real hardware for simulation models as the individual parts of hardware become available. In this paper a standard, wide-bandwidth electrical power interface is presented. The interface will use high-switching-speed power switches, ultra fast ADC converters and a FPGA platform. The high switching speed of the power switches makes it possible to achieve extremely high closed-loop bandwidth, but it requires additional effort in control development. For this reason a discrete-time version of the sliding mode control algorithm is implemented and tested.