Research on the Topology That Based on an Asymmetrical Multi-Level Inverters

This assay supposed one kind of asymmetrical multi-level inverter that based on the topology of cells cascading, every cell in this inverter is composed of one two-levels inverter series with several three-levels H bridges, the controlling system is constructed by DSP and FPGA. This article described the topology of this inverter and its controlling methods in detail. In final, tested this inverter's practical running effect by experiments, the rusult of the test proves that the inverter has the advantages of simple to build, less output harmonics waves and high output precision etc.