一种三相三重化串联型电压源逆变器的谐波特性  

Harmonic Characteristic Analysis Based on a Three-Phase Tripled Series-Connected Voltage Source Inverter

作　　者：陈国呈[1] 曹大鹏[1] 张翼[1] 崔开涌[1] 陈卫民[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海市电站自动化技术重点实验室,上海200072

出　　处：《电工技术学报》2007年第7期58-63,共6页Transactions of China Electrotechnical Society

基　　金：教育部博士学科点专项基金(20060280018);上海市教委重点项目基金(06ZZ03)资助

摘　　要：多重化电力变换器具有有效开关频率高、整体开关损耗小、共模电压低、波形质量好、动态响应快、冗余度高等优点,在大容量电力变换器中占有优势。本文以一种三相三重化串联型电压源逆变器为例,深入分析了多重化逆变器的工作原理、谐波特性及其物理意义,揭示出多重化后逆变器的输出特性及谐波的相位关系与对消规律,物理意义非常明确,易于理解和掌握。此分析方法具有普遍性,可以应用到任意重化逆变器的谐波分析上。The multiple power inverter has been prevailed in large capacity inverters with its inherent advantages of high effective switching frequency, low switching loss, low common-mode voltage, high quality output waveform, quick dynamic response and high redundancy. This paper thoroughly analyzs the multiple inverter＇s operational principle, harmonic characteristic and physical significance based on a three-phase tripled series-connected voltage source inverter, and presents the phase relationship and cancellation law of the multiple inverter＇s output harmonic. The physical significance is definite and easy to understand. The method can be applied to any multiple inverter＇s harmonic analysis.

关 键 词：串联型 多重化逆变器 电压源 正序谐波 逆序谐波 

分 类 号：TM464[电气工程—电器]