A Second-Order Voltage Ripple Suppression Strategy of Five-Level Flying Capacitor Rectifiers Under Unbalanced AC Voltages

被引：16
|
作者：
Zhang, Peng [1 ]
Wu, Xuezhi [1 ]
He, Shan [2 ]
Xu, Wenzheng [1 ]
Liu, Jingdou [1 ]
Qi, Jingjing [1 ]
Yang, Anna [1 ]
机构：
[1] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China
[2] Shenzhen Power Supply Co, Shenzhen 518028, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2023年 / 70卷 / 02期
关键词：
Voltage control; Rectifiers; Voltage; Capacitors; Topology; Switches; Reactive power; Balanced ac currents; five-level flying capacitor (5L-FC) rectifier; negative-sequence current reduction; second-order voltage ripple suppression; unbalanced ac voltages; UNIDIRECTIONAL RECTIFIER; PFC RECTIFIER; PWM RECTIFIER; DC; FRAME; CONVERTER; INVERTER;
D O I：
10.1109/TIE.2022.3159958
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Unbalanced ac voltages drastically deteriorate the performance of five-level flying capacitor (FC) rectifiers. Without introducing an extra buffering circuit to absorb the second-order oscillating power, it is an incompatible contradiction for realizing both negative-sequence current reduction and second-order voltage ripple suppression. In this article, based on the idea of using FCs in the rectifier to absorb the oscillating power, a second-order voltage ripple suppression strategy for unbalanced ac voltage conditions is proposed. Reducing the negative-sequence currents and suppressing the dc voltage ripples can be simultaneously realized. Simulations and experimental results verified the effectiveness and performance of the proposed scheme well.
引用
收藏
页码：1140 / 1149
页数：10
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