Design of a DSP-CPLD based SVPWM Generator for Three-level Inverter

The generation of the space vectors of multi-level inverter requires the formation of a group of complex driving signal.The drawback of three-level SVPWM generation using single DSP is analyzed.The paper introduces a simple three level SVPWM algorithm with the reference voltage vector decompose,which can make the calculation easier.A DSP-CPLD based SVPWM generator for three-level inverter is designed,which can save the resource of the DSP,as well as make the driving signal be sended synchronization.Finally,the simlulation and experimental results verify the space vector genertion is feasible and simple.