摘要
针对耦合电感型阻抗源逆变器升压能力不足和直通电流较大的问题,将多模态组合思想引入到Y源阻抗网络,提出一种多模态组合型Y源逆变器。对所提逆变器的所有模态组合方式、相应的调制策略和电压电流关系进行详细分析,推导出升压比和关键器件应力。与改进型Y源逆变器和高升压Y源逆变器进行对比,多模态组合方式使所提逆变器的升压比引入新的影响因子,能在相同绕组系数K和直通占空比d下令升压能力更高。同时具有更低的二极管电压应力,且抑制了直通电流的大小。最后通过搭建200 W的实验平台,验证所提逆变器的可行性和优越性。
Addressing the issues of insufficient boost capacity and high shoot-through current in coupled inductance impedance source inverters,this article introduces the multi-modal combination method into the Y-source impedance network and proposes an multi-modal combination Y-source inverter.A detailed analysis was conducted on the mode combination methods,corresponding modulation strategy,and voltage current relationship of the proposed inverter,and the boost ratio and key device stress were derived.The multimodal combination method introduces a new influence factor into the boost ratio of the proposed inverter.Compared to improved Ysource inverter and high step-up Y-source inverter,it can achieve higher boost capability at the same winding coefficient K and direct duty cycle d.At the same time,it has lower diode voltage stress and suppresses the shoot-through current.Finally,the feasibility and superiority of the proposed inverter were verified by building a 200 W experimental platform.
作者
马建伟
刘鸿鹏
魏来
张伟
王卫
Ma Jianwei;Liu Hongpeng;Wei Lai;Zhang Wei;Wang Wei(Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology,Ministry of Education,Northeast Electric Power University,Jilin 132012,China;School of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2024年第11期227-238,共12页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51977045)。
关键词
耦合电感
Y源逆变器
调制策略
多模态组合
电压应力
直通电流
coupled inductance
Y-source inverter
modulation strategy
multi-modal combination
voltage stress
shoot-through current
