Handshaking V2G strategy for grid connected PV assisted charging station

Handshaking V2G strategy for grid connected PV assisted charging station

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This study presents a novel handshaking approach to reduce transformer and line overloading using plug-in electric vehicles (PEVs) connected to a photovoltaic (PV) assisted charging station (CS) via vehicle-to-grid (V2G) control strategy. The discharging behaviour of PEVs on receiving an aggregator command is carried out using a priority index function under two variant of customer command: (i) normal charging; and (ii) fast charging. Moreover, it is carried out to maximise aggregator profit in an optimal fashion by broadcasting to each CS and scheduling their dispatch based on the available power feedback from each CS. The energy command compliance for handshaking is ensured in a sturdy manner using a contingency approach considering the uncertain mobile behaviour of PEVs. Owing to the highly unlikely travelling behaviour of PEVs, a novel distributed consensus-based power restoration between a fleet of CSs is proposed to endure handshaking using average power contribution from the rest of the CS if contingency fails for any CS. The proposed strategy has been tested on a 1 kVA FPGA-based experimental setup to validate the proposed control scheme under different scenarios.

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