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- Title
Multi-functional distributed generation unit for power quality enhancement.
- Authors
Zheng Zeng; Huan Yang; Guerrero, Josep M.; Rongxiang Zhao
- Abstract
A multi-functional distributed generation unit (MFDGU) and its control strategy are proposed in this study for the purpose of enhancing power quality in low-voltage networks. By using the 3H-bridge converter structure, an MFDGU can be applied in 3-phase 4-wire low-voltage distribution networks to compensate harmonic, reactive and unbalanced currents. A reduced-order model of the MFDGU is derived through a weighted-average-current-feedback approach, showing the robustness and stability of the proposed approach. The Fryze-Buchholz-Dpenbrock power theory is employed to generate the current reference of the MFDGU, which can be easily implemented in three-phase networks. A 15 kVA prototype consisting of three full bridge converters has been built and tested. Experimental results show the feasibility of the proposed topology and control strategy.
- Subjects
DISTRIBUTED power generation; LOW voltage systems; ELECTRIC networks; TOPOLOGY; ELECTRIC currents
- Publication
IET Power Electronics (Wiley-Blackwell), 2015, Vol 8, Issue 3, p467
- ISSN
1755-4535
- Publication type
Article
- DOI
10.1049/iet-pel.2013.0954