Coordinated Balancing Charging Strategy for Cascaded H-Bridge Inverter With Supercapacitor and DC-DC Stage

被引：4

作者：

Zhang, Ye ^{[1
,2
]}

Li, Zixin ^{[1
,2
]}

Gao, Fanqiang ^{[1
,2
]}

Zhao, Cong ^{[1
,2
]}

Li, Yaohua ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Elect Engn, Key Lab Power Elect & Elect Drive, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2024年 / 71卷 / 07期

关键词：

Cascaded H-bridge inverter (CHBI); over-modulation; power distribution; supercapacitor (SC); voltage balancing; REACTIVE POWER COMPENSATION; MULTILEVEL CONVERTERS; PWM; OPTIMIZATION; OPERATION;

D O I：

10.1109/TIE.2023.3301545

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This article presents a coordinated balancing charging strategy for the cascaded H-bridge inverter (CHBI) with supercapacitor (SC) and dc-dc stage by adopting multistage adjustment of the SCs' charging powers. The power distribution constraints among the submodules (SMs) are analyzed to prevent over-modulation of the H-bridges. The reactive power distribution is optimized to expand the stable operation range of the CHBI in case of significant disparity in the active power distribution among the SMs. The relationship among the charging powers of different SCs is also derived under the aforementioned constraints. Finally, the effectiveness of the presented strategy is verified through the experimental results on a 16-kW CHBI single-phase prototype with four SMs.

引用

页码：7262 / 7272

页数：11

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