Implementation Issues designing a Multilevel Converter Control for FPGA-based Hardware in Simulink

摘要

Computing power demands for control hardware of power converters increase steadily due to new topologies, faster switches and newer interfaces. Using FPGAs is a flexible and powerful solution, but not widespread mainly because of development process issues. In this paper it is investigated whether it is possible to implement a multilevel back to back converter on a FPGA using Simulink with only minimal hardware knowledge and without vendor-specific design tools and libraries. This workflow promises an easy and save transition to the new technology. The generator side control using a 3-level rectifier and the used SVPWM is treated in detail. Implementation hints are given to avoid problems during the process of making the system HDL-synthesizable.