Investigation of a Circuit Model and a Control Strategy for the Generalized Cascaded Full-Bridge Converter

被引：2
|
作者：
Queiroz, Samuel S. [1 ]
Oliveira, Demercil de S. [1 ]
Praca, Paulo P. [1 ]
Barreto, Luiz Henrique S. C. [1 ]
机构：
[1] Univ Fed Ceara, Dept Elect Engn, BR-60455760 Fortaleza, Ceara, Brazil
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2022年 / 69卷 / 03期
关键词：
Voltage control; Integrated circuit modeling; Mathematical model; Modulation; Topology; Equivalent circuits; Circuits and systems; Circuit modeling; multilevel systems; parallel interleaved converters; power balance; MODULAR MULTILEVEL CONVERTERS;
D O I：
10.1109/TCSII.2021.3103795
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This brief addresses an overall circuit model to represent a novel generalized cascaded full-bridge (GCF) converter. The synthesis methodology of the GCF converter uses full-bridge sub-modules (SMs) combined with the interleaving and cascading concepts. The time-dependent equations represented in terms of current and voltage magnitudes are obtained. Thus, it is possible to derive a comprehensive control system approach from the model. An improved control strategy provides power balancing while using the circulating current to balance the dc-link voltages and ensuring proper current sharing. A small-scale laboratory prototype of a static synchronous compensator (STATCOM) rated at 2.2 kVA/311 V validates the theoretical assumptions and statements.
引用
收藏
页码：1337 / 1341
页数：5
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