Journal
SOLAR ENERGY
Volume 128, Issue -, Pages 126-138Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2016.01.002
Keywords
Distribution system; Distributed photovoltaics
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Funding
- California Solar Initiative RDD program
- Robert Bosch LLC
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Deployment of high-penetration photovoltaic (PV) power is expected to have a range of effects - both positive and negative on the distribution grid. The magnitude of these effects may vary greatly depending upon feeder topology, climate, PV penetration level, and other factors. In this paper we present a simulation study of eight representative distribution feeders in three California climates at PV penetration levels up to 100%, supported by a unique database of distributed PV generation data that enables us to capture the impact of PV variability on feeder voltage and voltage regulating equipment. We find that feeder location (i.e. climate) has a stronger impact than feeder type on the incidence of reverse power flow, reductions in peak loading and the presence of voltage excursions. On the other hand, we find that feeder characteristics have a stronger impact than location on the magnitude of loss reduction and changes in voltage regulator operations. We find that secondary distribution transformer aging is negligibly affected in almost all scenarios. (C) 2016 Elsevier Ltd. All rights reserved.
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