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.