Journal
ENERGIES
Volume 10, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/en10070881
Keywords
bidirectional AC/DC converter; reactive power compensation capability; semiconductor losses; single-phase; V2G; wide battery voltage range
Categories
Funding
- Major Program of the National Natural Science Foundation of China [61490702, 61573384]
- Fundamental Research Funds for the Central Universities of Central South University [2017zzts687]
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This paper presents a single-phase bidirectional current-source AC/DC converter for vehicle to grid (V2G) applications. The presented converter consists of a line frequency commutated unfolding bridge and an interleaved buck-boost stage. The low semiconductor losses of the line frequency commutated unfolding bridge contribute to the comparatively good efficiency of this converter. The buck and boost operating modes of the interleaved buck-boost stage provide operation over a wide battery voltage range. The interleaved structure of the interleaved buck-boost stage results in lower battery current ripple. In addition, sinusoidal input current, bidirectional power flow and reactive power compensation capability are also guaranteed. This paper presents the topology and operating principles of the presented converter. The feasibility of the converter is validated using MATLAB simulations, as well as experimental results.
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