FPGA based real time electro-thermal modeling of power electronic converters

In this paper, two methods are proposed and analyzed for detailed modeling of power electronic devices and converters in real time using an FPGA. First, a Thevenin equivalent switch representation is enhanced to model the on characteristics of switching devices. Using this approach, an algorithm for real time electro-thermal modeling of power converters is proposed and an example is illustrated. The accuracy of this model is validated with experimental results performed using a 4.5 kW boost converter. This method is an efficient way to perform real time electro-thermal simulations of power electronic circuits operating at high switching frequencies.