寄生参数对高增益准Z源逆变器的性能影响  

Effects of Parasitic Parameters on the Performance of High Gain Quasi-Z-source Inverters

作　　者：房成群 国珍 郝杨阳 李恺 李海滨 张民 FANG Chengqun;GUO Zhen;HAO Yangyang;LI Kai;LI Haibin;ZHANG Min(School of Information and Control Engineering,Qingdao University of Technology,Qingdao 266520,Shandong,China)

机构地区：[1]青岛理工大学信息与控制工程学院,山东青岛266520

出　　处：《电气传动》2021年第21期22-28,共7页Electric Drive

基　　金：国家自然科学基金(51477079)。

摘　　要：在逆变器电路的工作过程中,由于寄生参数的参与引起了不可避免的能量损耗,造成拓扑的工作效率及电能转换率降低,从而对逆变器的工作性能产生不可忽视的影响。为了优化逆变器的性能,采用了一种高电压增益耦合电感准Z源逆变器作为研究对象,对其进行稳态分析,详细计算了各寄生参数及漏感对系统增益及效率的影响程度;利用Saber对逆变器的工作状态进行仿真并制作1 kW样机进行实验,结果验证了寄生参数对转换器的影响,为变换拓扑的综合性能的提升提供了理论依据。In the working process of the inverter circuit,the participation of parasitic parameters causes inevitable energy loss,resulting in a reduction in topology efficiency and power conversion rate,which has a non negligible impact on the inverter performance.In order to optimize the performance of the inverter,a high voltage gain switched coupled-inductor quasi-Z-source inverter was used as the research object.The steady-state analysis was carried out,and the effect of various parasitic parameters and leakage inductance on the system gain and efficiency was calculated in detail.Saber was used to simulate the working state of the inverter and a 1 kW prototype was made for experiment.The results verify the influence of parasitic parameters on the converter,which provides a theoretical basis for improving the comprehensive performance of the conversion topology.

关 键 词：寄生参数 高电压增益 耦合电感 准Z源逆变器 

分 类 号：TM464[电气工程—电器]