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Voltage imbalance analysis in residential low voltage distribution networks with rooftop PVs
- Source :
-
Electric Power Systems Research . Sep2011, Vol. 81 Issue 9, p1805-1814. 10p. - Publication Year :
- 2011
-
Abstract
- Abstract: The installation of domestic rooftop photovoltaic cells (PVs) are on the rise due to feed-in tariff and changes driven by environmental concerns. Even though the increase in the PV installation is gradual, their locations and ratings are often random. Therefore, such single-phase bi-directional power flow can have adverse effect on the voltage imbalance of a three-phase distribution network. In this paper, a voltage imbalance sensitivity analysis and stochastic evaluation based on the ratings and locations of single-phase grid-connected rooftop PVs in a residential low voltage distribution network are presented. The stochastic evaluation, based on Monte Carlo method, predicts a failure index of non-standard voltage imbalance in the network in presence of PVs. Some improvement methods are discussed and a new improvement method based on PV converter control is proposed. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03787796
- Volume :
- 81
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Electric Power Systems Research
- Publication Type :
- Academic Journal
- Accession number :
- 62271228
- Full Text :
- https://doi.org/10.1016/j.epsr.2011.05.001