Abstract
The global goal for a significant reduction of carbon emissions in the mobility sector is accompanied by an increasing market penetration of electric vehicles (EV). As a result of this, distribution grids see a change in power demand. This contribution investigates and compares different decentralized and centralized EV charging control approaches with respect to their grid impacts and user satisfaction. The focus of this analysis is the utilization of different types of reactive power management using heuristic problem optimization for chargers. A large-scale MV and LV grid simulation framework is developed and combined with an EV simulation. Parameters such as transformer and line loading, losses, voltage profiles and voltage band violations as well as the reached fleet state of charge (SOC) are considered. The comparison of the implemented scenarios shows that a decentralized reactive power injection combined with potential active power curtailment results in the best EV integration.
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