Research on T-type Three-level Inverter Based on SVPWM Modulation Strategy
The T-type three-level inverter has been widely utilized in the field of high-voltage and high-power new energy power generation in recent years.This paper analyzes the structure and operating principles of the T-type three-level inverter.The concept of space vector pulse width modulation(SVPWM)strategy is described.The implementation method for the three crucial steps—determining the position of the reference voltage vector,calculating the action time of the basic vectors,and generating the action time sequence of the basic vectors—is presented in detail.A simulation model of the T-type three-level inverter,based on the SVPWM modulation strategy,is constructed using Matlab/Simulink software.The simulation results verify the correctness of the simu-lation model and the effectiveness of the SVPWM modulation strategy.
three-level inverterspace vector pulse width modulationnew energy power generation