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Publication type: Article
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| Title: |
A Four-Quadrant Single-Phase Grid-Connected Converter With Only Two High-Frequency Switches
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| Author(s): |
Siu,Ken King Man
(Author)
Ho,Carl Ngai Man
(Author)
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| Source Journal Info. |
Title:IEEE Transactions on Industrial Electronics
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Issue Number:2020/MAR V.67 N.3
Call No.:621.38105 ITI
Location: References & Periodical Hall - 2nd floor
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| Physical Description: |
p 1899 - 1909
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| Subject Area: |
Engineering
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| Subject Terms: |
Industrial electronics
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| Accession Number |
181640
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Abstract
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This paper presents a new four-quadrant (4Q) boost-type converter with the use of active virtual ground (AVG) technology. The presented topology can step up the ac grid voltage to a regulated dc voltage under a stable bidirectional current flow and support the power transmission in either real power or reactive power delivery. With the use of the proposed modulation method, only two high-frequency switches are required through the 4Q operation. Under a full-bridge converter structure, an efficient system can be guaranteed. Also, benefiting from the AVG technology, an LCL filter is formed at the system input over the 4Q operation. Both magnitude of leakage current and grid current ripple are also minimized to a small value. Thus, a high-efficiency and low-noise 4Q converter is guaranteed. The presented topology is successfully implemented on a 750 VA prototype and the performance is experimentally verified on it, which shows good agreement with the theoretical
knowledge.
...
Abstract URL:https://ieeexplore.ieee.org/document/8667066
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