基于T-NPC型三电平逆变器的控制策略研究  

T-NPC Three-level Inverter-based Control Strategy for Power Electronic Transformers

作　　者：左智超 许峰[1] 张礼杰 朱庭耀 ZUO Zhichao;XU Feng;ZHANG Lijie;ZHU Tingyao(Nanjing Institute of Technology,Nanjing 211100,China)

机构地区：[1]南京工程学院,江苏南京211100

出　　处：《电工技术》2024年第21期50-53,共4页Electric Engineering

摘　　要：T-NPC三电平逆变器作为中高功率发电领域应用极为广泛的拓扑,对提高电能转换效率起到极大促进作用。研究了基于T-NPC三电平逆变器的新型PET拓扑结构,该拓扑结构将传统变压器的两电平逆变器替换为T-NPC结构的三电平逆变器,以进一步减少谐波、降低损耗。MATLAB/Simulink仿真实验验证了T-NPC型三电平结构控制策略的可行性和有效性。T-NPC three-level inverters have found extensive application in the field of medium-power and high-power generations,and facilitated greatly the improvement of energy conversion efficiency.The present work studied a new-type of topological structure for power electronic transformers based on the T-NPC three-level inverter.By substituting two-level inverter in conventional PETs with the T-NPC three-level inverter,the proposed control strategy was expected to suppress harmonics and reduce losses.The proposed control strategy was preliminarily indicated feasible and effective through a MATLAB/Simulink simulative experiment.

关 键 词：T-NPC 三电平逆变器 控制策略 谐波分析 单电流环控制 

分 类 号：TM464[电气工程—电器]