带有升降压的三相五电平逆变器拓扑及控制设计  

Design of Topology and Control of Three-phase Buck-boost Five-level Inverter

作　　者：杨国良[1] 王明 秦杭 YANG Guoliang;WANG Ming;QIN Hang(School of Electrical Engineering,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学电气工程学院,秦皇岛066004

出　　处：《电源学报》2023年第5期33-40,共8页Journal of Power Supply

基　　金：新疆维吾尔自治区自然科学基金资助项目(2019D01A01);新疆维吾尔自治区天山青年资助项目(2019Q135);内蒙古自治区电能变换传输与控制重点实验室开放基金资助项目(IMEECTC2020003)。

摘　　要：提出了一种三相升降压型五电平逆变器。与传统的的多电平逆变器相比,升降压五电平逆变器具有能够实现升降压、拓扑结构简单、控制方法简单、所需功率开关器件数量少、开关损耗小等优点。采用载波层叠法作为逆变器的调制策略,采用PI调节器对系统进行控制,并且使用Matlab/Simulink平台对带有升降压的三相五电平逆变器及其并网控制策略进行了仿真验证。最后搭建了系统相应的硬件实验平台,通过实验验证了所提出的电路拓扑的性能。In this paper,a three-phase buck-boost five-level inverter is proposed,which has advantages of a buck-boost function,a simple topology,easy control,less power switching components,and a low switching loss compared with the traditional multi-level inverter.The carrier cascade method is adopted as a modulation strategy for the inverter,and a PI regulator is used to control the system.In addition,the three-phase buck-boost five-level inverter and its grid-connected control strategy are simulated and verified based on the MATLAB/Simulink platform.Finally,the corresponding hardware experimental platform for the system was built,and the performance of the proposed circuit topology was verified by experimental results.

关 键 词：多电平 三相五电平逆变器 升降压 拓扑 载波层叠法 

分 类 号：TM464[电气工程—电器]