Abstract : —An analysis of the operating conditions of a power transformer with the introduction of photovoltaic (PV) panels and Electric Vehicles (EV) in an eco-district is conducted. The study focuses on: (a) determining the optimal transformer sizing when there is neither PV nor EV; and (b) characterizing the overloading periods of the transformer induced by the penetration of PV sources and EVs in the district. We compare two EV integration strategies: they are either considered as unmanaged loads, or controlled by an Energy Management System (EMS) with Vehicle-to-Grid (V2G) capabilities. Transformer operating curves and rated power are deduced from technical standards supplied by Schneider Electric. The results show that EVs and PV introduction has a substantial impact on overloading periods. However, the latters are seriously mitigated both in terms of energy flows and peak power with the implementation of the EMS.
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Submitted on : Sunday, February 7, 2016 - 10:19:23 AM Last modification on : Monday, December 14, 2020 - 9:51:21 AM Long-term archiving on: : Saturday, November 12, 2016 - 6:39:01 AM
Xuan-Linh Dang, Marc Petit, Paul Codani. Transformer operating conditions under introduction of PV and EVs in an eco-district. IEEE Power and Energy Society General Meeting, Jul 2015, Denver, France. ⟨10.1109/PESGM.2015.7286380⟩. ⟨hal-01266885⟩