Assessment of Distributed Generation Hosting Capacity in Electric Distribution Systems by Increasing the Electric Vehicle Penetration
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The distribution system operator (DSO) is responsible for ensuring, in a safe and reliable way, the connections of distributed generation (DG) projects in the electric distribution system (EDS). In this regard, the hosting capacity analysis is a crucial tool to assist the DSO in the decision-making process. Therefore, this work proposes a strategy to evaluate the effects of high penetration levels of electric vehicles (EV s) on the DG hosting capacity problem. The problem viewed from the perspective of DSO is formulated as a mixed-integer linear programming model, where the objective function maximizes the DG hosting capacity and simultaneously minimizes the EDS energy losses. To validate the proposed strategy, several penetration levels of EV s are considered under three different cases. Results show that when the initial installed DG capacity (without EV penetration) is compared with the installed DG capacities at the maximum penetration level of EV s, increases of 25 %, 50 % and 66.67 % are achieved, in cases of uncontrolled charging scheme to EV s, controlled charging of EV s and taking advantage of V2G capabilities, respectively.
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DG hosting capacity, Electric distribution system, EV aggregators, EV penetration level
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Proceedings of 2021 IEEE PES Innovative Smart Grid Technologies Europe: Smart Grids: Toward a Carbon-Free Future, ISGT Europe 2021.
