Six-Leg Three-Phase AC-DC-AC Converter With Shared Legs

被引：3
|
作者：
Felinto, Alan Santana [1 ]
Jacobina, Cursino Brandao [2 ]
Lopes Fabricio, Edgard Luiz [3 ]
de Lacerda, Rodrigo Pereira [1 ]
机构：
[1] Univ Fed Campina Grande, Postgrad Program Elect Engn, BR-58429900 Campina Grande, Paraiba, Brazil
[2] Univ Fed Campina Grande, Dept Elect Engn, BR-58429900 Campina Grande, Paraiba, Brazil
[3] Fed Inst Educ Sci & Technol Paraiba, Acad Unity Control & Ind Proc, Joao Pessoa Campus, BR-58015435 Joao Pessoa, Paraiba, Brazil
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2021年 / 57卷 / 05期
关键词：
Legged locomotion; Pulse width modulation; Voltage control; Mathematical model; Harmonic distortion; Uninterruptible power systems; Switches; AC-AC power conversion; active filters; harmonic distortion; losses; pulsewidth modulation; VOLTAGE REGULATOR; ONLINE UPS; TOPOLOGIES; RECTIFIER;
D O I：
10.1109/TIA.2021.3099099
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This article proposes a six-leg three-phase ac-dc-ac converter with three of its legs shared between grid and load sides. The proposed converter presents double of voltage generation capability at load side compared with grid side and it is suitable for operation with the same grid and load frequency. Pulsewidth modulation (PWM) and control strategy are presented. Analysis of dc-link voltage requirement, current in the shared legs, and design of passive devices are carried out. The proposed converter is compared with conventional topologies considering harmonic distortion, average switching frequency, average converter current, and semiconductor losses. Operating with the same voltage amplitude at grid and load, the proposed converter presents lower conduction losses than the conventional ones. Besides that, for operation with load voltage twice the amplitude of grid voltage, the converter presented the lowest switching and conduction losses compared with the conventional converters. Finally, experimental results are shown for validation purposes.
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页码：5227 / 5238
页数：12
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