一种简易单相升压型五电平逆变器  

A simple single-phase boost five level inverter

作　　者：左雷鹏 徐斌 张志超[1,2] 张旭鹏[1] Zuo Leipeng;Xu Bin;Zhang Zhichao;Zhang Xupeng(State Grid Baoding Electric Power Supply Company,Baoding 072150,China;Tianjin University,Tianjin 300072,China)

机构地区：[1]国网保定供电公司,河北保定072150 [2]天津大学,天津300072

出　　处：《可再生能源》2025年第3期416-421,共6页Renewable Energy Resources

基　　金：国网河北省电力公司科技项目(5204BD230005)。

摘　　要：高频交流配电系统的发展对逆变器的要求提出了新的挑战。传统的逆变器因其复杂的结构、高开关频率和缺乏升压能力等而显得不再适用。基于此,文章提出了一种新型单相电容自均压的五电平逆变器拓扑。该拓扑通过电容和电源结合的串并联机制,实现五电平输出,并具有电容自均压的优点;通过简化结构和降低开关频率提高传输效率;采用特定的谐波消除方法进一步减少输出的谐波失真。文章介绍了逆变器的工作原理及相关参数的计算方法,并进行了仿真验证。结果表明,理论分析正确,说明该逆变器适用于作为高频领域的电源侧设备。The development of high-frequency AC distribution systems poses new challenges to the requirements of inverters. Traditional inverters are no longer suitable due to their complex structure, high switching frequency, and lack of boost capability. Based on this, a novel singlephase capacitor self balancing five level inverter topology is proposed. This topology achieves five level output through a series parallel mechanism combining capacitors and power sources, and has the advantage of capacitor self balancing;Improve transmission efficiency by simplifying the structure and reducing switching frequency;Using specific harmonic elimination methods to further reduce output harmonic distortion. This article introduces the working principle of inverters and the calculation method of related parameters, and conducts simulation verification. The results indicate that the theoretical analysis is correct, indicating that the inverter is suitable as a power side device in the high-frequency field.

关 键 词：逆变器 并网 电容均压 多电平 

分 类 号：TK51[动力工程及工程热物理—热能工程] TK81[电气工程—电器] TM4611