Impact Of EV Integration On A Distribution Grid Using Monte Carlo Method

The uncertainty of the load demand caused by the expanded number of electric vehicles can be a risk for the distribution grid. This additional load might lead to line congestions, transformer overloading and voltage limit violations . Many factors including the distributed generation and the growth of demand should be considered during the mid-term and long-term planning in distribution networks. This master thesis aims to analyze the impact of integrating electric vehicles in a real distribution network, considering different scenarios of distributed generation and demand in the future. With this, it is intended to help the system operator to better assess different planning strategies. Load flow analysis has been the most used calculation to ensure whether the existing system can withstand the load in steady-state and further evaluate the needs of grid construction. In this study, a load flow analysis is conducted using the Newton-Raphson method in the Pandapower solver. The study is applied to a real distribution grid located in northwest Turkey where new EV charging stations will be installed in a few years. The load profiles of the charging stations being used in the model were created synthetically based on the measured data from the charging station located at the case study grid. The Monte Carlo simulation with simple random sampling is conducted to simulate the uncertainties of EV load and energy production. We assigned a fixed probability for each EV model based on the market share and charger occupancy rate. 100 EV load profiles are selected for each charging point. Considering the aggregated demand, EV loads, and PV production, a time-series module was applied which iterated 2400 times to collect the statistical resultsObjectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.b - Per a 2030, ampliar la infraestructura i millorar la tecnologia per tal d’oferir serveis d’energia moderns i sos­tenibles per a tots els països en desenvolupament, en particular els països menys avançats, els petits estats insulars en desenvolupament i els països en desenvolupament sense litoral, d’acord amb els programes de suport respectiusObjectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats Sostenibles::11.2 - Per a 2030, proporcionar accés a sistemes de transport segurs, assequibles, accessi­bles i sostenibles per a totes les persones, i millorar la seguretat viària, en particular mitjan­çant l’ampliació del transport públic, amb especial atenció a les necessitats de les persones en situació vulnerable, dones, nenes, nens, persones amb discapacitat i persones gran