A novel current source multilevel controller based on FPGA

With the development of superconductivity technology, the current source multi-level inverter (CSI) will be paid more and more attention, appearing some new topology, but the corresponding controller has not appeared, for example split-phase control current source multi-level inverter. In view of this situation, a solution based on FPGA is proposed. Using the FPGA technology, all logical function will be integrated to a chip, reduced the system cubage greatly, enhanced the system performance, moreover triple-harmonic filling is conveniently, through fill the triple-harmonic, the efficiency of the inverter will be enhanced 1.15 times .The entire design is validated on a five level experiment system.