Dynamic Co-simulation of agent-based controlled charging electric vehicles and their impacts on low-voltage networks

Abstract

During the last decades the electric vehicles (EVs) technologies are developing rapidly which may lead to a significant penetration level in the mobility market in the near future. As a consequence of these high penetration levels, power grids, especially on the low voltage level, might face a number of technical problems. These can be transformer and cables overloads, feeder congestions and especially voltage limits violations. Renewables may introduce a solution for part of these problems but not all of them. In order to minimize peak loads caused by charging EVs, intelligent control algorithms for EV charging are needed. This paper focuses on a dynamic cosimulation environment which enables the realistic evaluation of the impact of charging EVs on electrical networks. This cosimulation environment also simulates the behavior of the EV's and estimates the required charging power. In order to test the co-simulation environment a study case is analyzed for a rural residential network with a high penetration of photovoltaic systems.

Assessing the Need and State of Power System and Transportation System Co-Simulation

“…However, a few papers attempt to introduce some aspect of transportation modeling to electric modeling via co-simulation. An ad-hoc co-simulation environment is used to demonstrate the impacts of EV charging on low-voltage grids and develop a charging power curtailment control algorithm using nodal sensitivities to reduce voltage violations in [27]. In [28], the concept of a real-time power Hardware-in-the-Loop (HiL) co-simulation platform is introduced as a test-bed for electric mobility and its interaction with the grid.…”

Modeling the Impact of Electric Vehicle Charging Systems on Electric Power Quality

“…The obtained results and conclusions in [19] are extremely different from those presented in [17] despite similar initial assumptions. An interesting approach to the study of the impact of charging systems on electricity quality was presented in [22]. It presents a model of a real low-voltage grid near Salzburg, to which electric vehicle charging points are connected.…”