Analysis and Design of a Single-Phase Half-Bridge Rectifier With an Active DC Bus

This paper introduces the concept of an active DC. The active DC bus consists of a reduced passive DC bus and an Active Resonant Voltage Balancer (ARVB). The ARVB, operating as a series resonant converter, reduces the DC bus current ripple by injecting balancing current into the DC bus mid-point. Th...

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Bibliographic Details
Published inIEEE access Vol. 12; pp. 100591 - 100601
Main Authors Miletic, Zoran, Grbovic, Petar J.
Format Journal Article
LanguageEnglish
Published IEEE 2024
Subjects
Bridge circuits
Capacitors
Converters
DC bus
Harmonic analysis
Power harmonic filters
Rectifiers
resonant converters
Switching frequency
Voltage control
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Summary:This paper introduces the concept of an active DC. The active DC bus consists of a reduced passive DC bus and an Active Resonant Voltage Balancer (ARVB). The ARVB, operating as a series resonant converter, reduces the DC bus current ripple by injecting balancing current into the DC bus mid-point. This injected current effectively counteracts the fundamental component of the current flowing to the mid-point of the DC bus, resulting in a significant reduction in both the gravimetric and volumetric volume of the DC bus. The proposed concept is thoroughly analyzed through a case study involving a single-phase half-bridge rectifier application. Through theoretical analysis and experimental validation, the usefulness and feasibility of the proposed concept are demonstrated, showing in the presented case study a reduction of the DC bus volume by a factor of 4 at the expense of an increase in losses. The concept represents a viable option in power conversation applications where volume and weight reduction and optimization are required.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2024.3430841