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EV charging stations (EVCS) are expected to be deployed at business premises such as universities, hospitals, shopping malls and other office buildings in the future. Their impact on electric grids depends on their combined daily load profile and proportions of its constant current (CC) and constant voltage (CV) load. The daily load profile and the proportion of its CC and CV are different for different...
Depending on charging locations and business interest, EV charging facilities can be classified into Commercial Charging (CC), Business Charging (BC), and Home Charging (HC). Diurnal load distribution in these EV charging facilities can be dissimilar on the account of different customers' behavior. Therefore, these charging facilities will put forth different degrees of impacts on the grid. A portion...
Electric Vehicles (EVs) have the potential to provide numerous ancillary services to the grid owing to the fact that they can act as either loads or sources when connected to the grid. However, customers are still disinclined to embrace this technology because of long battery charging time, limited range, and high battery replacement costs. Widespread rollout of fast Electric Vehicle Charging Stations...
The interest on electric vehicles growing as a sustainable alternative to fossil fuel driven vehicles. Even though there are a number of grid impact studies, only a scant attention has been paid to study the impact of EV charging on system stability. Electrification of transportation brings significant load integration to the grid. This could profoundly influence stability of the grid. Hence, it is...
Intermittent and slow generator like PV is augmented with auxiliary device to meet the certain grid code requirements for interconnection. Ultracapacitor, battery energy storage system (BESS) or shunt capacitor at the PV terminal have recently been used as auxiliary devices for large-scale PV generator system to improve the system performance during transients. Although the studies on individual auxiliary...
This paper discusses modeling of a micro-grid with PV-Wind-Diesel generator hybrid system and its operations. The PV system is modeled with a DC/AC inverter with a pre-defined Maximum Power Point Tracking (MPPT) control. Fixed speed induction generator based wind turbines are used to model the wind farm. The diesel generator controls are modeled with droop governor and automatic voltage regulator...
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