New Multilevel Mixed Topology Development to Improve Inverter Robustness for Domestic Photovoltaic Installations

Jacques, Sébastien; Caldeira, Adelphe; Schellmanns, Ambroise; Ren, Zhong; Batut, Nathalie

doi:10.4236/jpee.2013.15001

Cited by 2 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the experimental conditions described above, the THD-values of the output signals are about 5%. In comparison with a 5-level topology described in the literature (THD-value about 37%), under approximately the same experimental conditions, the THD-value is here very low [18]. As a consequence, the topology proposed in this article is validated in the inverter mode.…”

Section: Inverter Modementioning

confidence: 53%

See 1 more Smart Citation

An Innovative Bidirectional DC-AC Converter to Improve Power Quality in a Grid-Connected Microgrid

Bissey¹,

Jacques²,

Reymond³

et al. 2018

Preprint

View full text Add to dashboard Cite

The management of the electrical energy still raises a huge interest for end-users at the household level. Home electricity management systems (HEMS) have recently emerged both to warrant uninterruptible power and high power quality, and to decrease the cost of electricity consumption, by either shifting it in off peak time or smoothing it. Such a HEMS requires a bidirectional DC-AC converter, specifically when an energy transfer is required between a storage system and the AC-grid, and vice versa. This article points out the relevance of an innovative topology based on sinusoidal waveforms from the generation of sine half-waves. Such a topology is based on a DC-DC stage equivalent to an adjustable output voltage source and a DC-AC stage (H-bridge) which are in series. The results of a complete experimental procedure prove the feasibility to improve the power quality of the output signals in terms of total harmonic distortion (THD-values about 5%). The complexity of the proposed converter is minimized in comparison with multilevel topologies. Finally, wide band-gap semiconductor devices (SiC MOSFETs) are helpful both to warrant the compactness and the high efficiency (about 96%) of the bidirectional converter, whatever its operation mode (inverter or rectifier mode).

show abstract

Section: Inverter Modementioning

confidence: 53%

“…The role of a multi-level inverter is to vary the output voltage step by step through levels. A significant increase of the number of levels leads to a signal waveform comparable to a sine curve [18]. Thus, it helps to improve the power quality of the converter and, a fortiori, the microgrid.…”

Section: Introductionmentioning

confidence: 99%