A SVM IC for multilevel converters and its FPGA-based implementation

A new approach in realization of multilevel space vector modulation (SVM) control integrated circuit (IC) using field-programmable gate array (FPGA) was presented. The proposed SVM IC, which builds on an universal multilevel SVM algorithm based on decomposing reference voltage vector, is generally applicable to converters with any number of levels. The proposed SVM IC has been realized using the state-of-the-art FGPA technique and can serve as a part of the digital controller to generate SVM gating signals for multilevel converters. Owing to the high-speed processing capability of FPGA, the proposed multilevel SVM IC can release the computation load of the microprocessor. Fast prototyping and higher switching frequency are other advantages. The developed multilevel SVM IC has been verified using the experimental results on a nine-level cascaded H-bridges converter.