WANG Rutian, HAN Longjie, Yu Yang. Study of Thee-level High-gain Split-source Flying Capacitor Two-stage Matrix Converter and Its Modulation Strategy[J]. Journal of Northeast Electric Power University, 2025, 45(3).
WANG Rutian, HAN Longjie, Yu Yang. Study of Thee-level High-gain Split-source Flying Capacitor Two-stage Matrix Converter and Its Modulation Strategy[J]. Journal of Northeast Electric Power University, 2025, 45(3). DOI: 10.19718/j.issn.1005-2992.2025-03-0081-09.
三电平高增益分裂源飞跨电容双级矩阵变换器及其调制策略的研究
摘要
为解决传统双级矩阵变换器电压增益不足和难以实现多电平输出的问题
文中提出一种新型三电平高增益分裂源飞跨电容双级矩阵变换器(Three- Level High Gain Split- Source Flying Capacitor Two- Stage Matrix Converter
In order to address the issue of inadequate voltage gain in conventional two- stage matrix converters
this paper puts forth a novel three- level high gain split- source flying capacitor two- stage matrix converter (TL- HGSSFC- TSMC) and undertakes a comprehensive investigation of its modulation strategy. The converter integrates the functionality of a two- stage matrix converter
a novel high- gain split- source network
and a three- level flying capacitor inverter
with the objective of enhancing the voltage gain and the quality of the output waveform of the converter. The rectifier stage modulation employs a zero- free vector modulation strategy
and the operating principles of the high- gain split- source network and the three- level flying capacitor topology are systematically analyzed. The flying capacitor inverter stage employs the enhanced space vector pulse width modulation (SVPWM) method based on phase- shifted carrier
a technique that effectively addresses the flying capacitor voltage unbalance issue. Subsequent to the theoretical underpinnings
a simulation verification procedure was executed using Matlab/Simulink. The outcomes demonstrate that the proposed converter substantially enhances the voltage transfer ratio and attains a three- level output when contrasted with the conventional topology.