摘要
讨论了2种现代拓扑结构的多电平变换器(或者逆变器),适用于高功率的光电应用,提高了效率,降低了总的谐波失真(THD).相对于传统类型的逆变器而言,多级逆变器表现出以下优点:在使用低开关频率时依然可以提供比较高质量的电能输出,决定了开关损耗、谐波滤波器的大小.通过分析多级Z源/准Z源逆变器拓扑结构,比较它们的效率、THD、所需半导体器件的数量,在相同的条件下使用MATLAB/Simulink对这2种拓扑结构进行模拟仿真,根据结果选择其中更合适的多级拓扑结构.
This article discusses two modern topological multi-level converters( or inverters) that are suitable for high-power optoelectronic applications,mainly to improve efficiency and reduce total harmonic distortion( THD). Compared with traditional inverters,multi-stage inverters have the following advantages: they can still provide relatively high-quality power output when using low switching frequency,and determine the switching loss and the size of the harmonic filter. By analyzing multi-level Z-source/quasi Z-source inverter topologies and comparing their efficiency,THD,number of required semiconductor devices,and other reference characteristics,the two topologies are implemented using MATLAB/Simulink under the same conditions. By simulating,a more suitable multi-level topology is selected based on the results.
作者
陈浩
武保东
CHEN Hao;WU Baodong(School of Electrical & Information Engineering, Anhui University of Science & Technology,Huainan, Anhui 232001 , China)
出处
《平顶山学院学报》
2019年第2期41-44,共4页
Journal of Pingdingshan University
关键词
多级Z源/准Z源逆变器
光伏
高功率应用
multi-level Z-source/quasi Z-source inverter
photovoltaic
high power application
