飞跨电容型多电平整流器载波重构调制策略  

Carrier redistribution modulation strategy of flying capacitor multilevel rectifier

作　　者：张鹏[1] 吴学智[1] 祝天岳 梅子扬 续文政[1] ZHANG Peng;WU Xuezhi;ZHU Tianyue;MEI Ziyang;XU Wenzheng(National Active Distribution Network Technology Research Center,Beijing Jiaotong University,Beijing 100044,China;China Academy of Shipbuilding Industry Systems Engineering,Beijing 100094,China)

机构地区：[1]北京交通大学国家能源主动配电网技术研发中心,北京100044 [2]中国船舶工业系统工程研究院,北京100094

出　　处：《电力自动化设备》2024年第5期178-184,共7页Electric Power Automation Equipment

摘　　要：针对飞跨电容型多电平整流器存在众多冗余开关状态的特性及飞跨电容的电压平衡控制需求,提出一种通用的载波重构调制策略。该策略通过构造多段锯齿形载波来增加调制自由度,在保持与载波同相层叠调制策略相同的线电压谐波性能的同时,还具备载波移相调制策略的飞跨电容电压自平衡特性。仿真与实验结果验证了所提调制策略的有效性。In view of the characteristic of flying capacitor multilevel(FC-ML)rectifier with many redundant switching states and the voltage balance control requirement of flying capacitor,a general carrier redistribu⁃tion modulation strategy is proposed.This strategy increases the modulation freedom by constructing multisegment sawtooth carriers,which maintains the same harmonic performance of line voltage as the phase dis⁃position pulse width modulation strategy,and also has the flying capacitor voltage self-balancing characteristic of phase shift pulse width modulation strategy.Simulative and experimental results verify the effectiveness of the proposed modulation strategy.

关 键 词：飞跨电容型多电平整流器 载波重构调制 谐波性能优化 电容电压自平衡 

分 类 号：TM46[电气工程—电器]