Assessment of Voltage Stability Index to various loading conditions and Electrical Vehicle Charging Station Load on Distribution network

Abstract: EVs are a good substitute to reduce the emissions produced by the transportation industry. Charging stations have been set up as EVs become more and more popular. however, it is impossible to ignore the negative effects that EV charging station loads have on the distribution network's voltage stability. In this research, an analysis of two voltage stability indicators (VSIs) is provided to forecast the distributions near voltage collapse. These VSIs are based on the idea of the two-bus voltage quadratic equation. Radial distribution systems (RDS) IEEE 15-bus test system was used to assess the behavior of VSIs as base load penetration increased. These indices are differentiated to determine how well they can determine the system's weakest bus. Results indicate that this evaluation of the indices can be used to position EV chargers in the system.

Keywords: Distribution network, Voltage Stability indices, EVs Charging Station, voltage collapse.