Planning of Electrical Vehicle Charging Stations Considering Voltage Stability and Reliability (Case Study: Electrical Distribution Network of Hamedan Province)

the use of electric vehicles in the structure of distribution networks has been researched in recent years with various objectives. The reduction of losses and the improvement of the voltage profile are some of the expected objectives in networks equipped with electric vehicles. However, it will not be possible to achieve the positive goals of using these devices in the network without the full implementation of smart energy networks. This will be achieved by introducing intelligence and controllability in the distribution companies in Iran in recent years. In this paper, the planning of electric vehicle charging stations for electric vehicles has been studied to improve the voltage stability and reliability of a practical network that is part of the power distribution network of Hamedan province. The considered function is a multi-objective function which is optimized using MOEA/D analysis. The variables of the problem are the locations of the charging stations for electric vehicles and their planning during the optimization period. In order to achieve different objectives in solving the problem, it is necessary to consider the possibility of V2G or vehicle-to-grid power transfer in addition to normal operation. In this case, electric vehicles as virtual power plants will influence a variety of technical parameters of the distribution networks. In this article, two main parameters, namely voltage stability and non-distributed energy, have been analyzed in terms of system costs under the title of a multi-objective function. After modeling the proposed method, the software implementation was carried out in MATLAB software environment and the results were analyzed. The implementation results show that in order to utilize the various advantages of electric vehicles in real networks, variables such as the penetration rate of electric vehicles and the number of charging stations need to be changed in interaction with each other.