The Research of Control Algorithm and Topology for High Voltage Frequency Converter Based on Modular Multilevel Converter
production.This paper first describes the fundamental concepts of the high voltage frequency converter which mainly constituted by modular multilevel converter(MMC).The mathematical model was built through the analysis of the topological structure and working mechanism for MMC which based on switching function.After that,the model was controlled by carrier phase disposition pulse width modulation(POD-PWM)with capacitor voltage stabilization and balancing control based on modeling-sequencing algorithm.Through the comparison for different modulations,the advantage of POD-PWM is proved.Last,the simulation has been carried out in the software Matlab-Simulink and RT-Lab.The result shows that the converter works properly and the capacitor voltage keeps steady state.The output waveform contains few harmonic waves.It also proves that POD-PWM and voltage stabilization and balancing control algorithm is effective.
High voltage frequency converter Modular multilevel converter Modulation algorithms Voltage stabilization and balancing control RT-Lab
Zheng Zheng Cui Can
School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China
国际会议
长沙
英文
4425-4430
2014-05-31（万方平台首次上网日期，不代表论文的发表时间）