Research on Modular Multilevel Converter Based on Half-bridge Submodule
A modular multilevel converter(MMC)is suitable for high and medium voltage application.It has the advantages of low loss,high transmission efficiency,low switching frequency,low switching loss and less output har-monics.In this paper,the working principle and modulation strategy of MMC composed of half-bridge submodules are studied.The simulation model is built on the platform of MATLAB/simlink simulation software,and the simula-tion results show that the nearest level approximation modulation strategy can realize the output voltage with low har-monic content of MMC.
half-bridge submodulemodular multilevel converterHVDC transmission and distributionnearest level approximation modulation
万方数据
维普
