TY - EJOU
AU - Yang, Pengwei
AU - Cao, Yuqi
AU - Tan, Jie
AU - Chen, Junfa
AU - Zhang, Chao
AU - Wang, Yan
AU - Liang, Haifeng
TI - Electric Vehicle Charging Capacity of Distribution Network Considering Conventional Load Composition
T2 - Energy Engineering
PY - 2023
VL - 120
IS - 3
SN - 1546-0118
AB - At present, the large-scale access to electric vehicles (EVs) is exerting considerable pressure on the distribution network. Hence, it is particularly important to analyze the capacity of the distribution network to accommodate EVs. To this end, we propose a method for analyzing the EV capacity of the distribution network by considering the composition of the conventional load. First, the analysis and pretreatment methods for the distribution network architecture and conventional load are proposed. Second, the charging behavior of an EV is simulated by combining the Monte Carlo method and the trip chain theory. After obtaining the temporal and spatial distribution of the EV charging load, the method of distribution according to the proportion of the same type of conventional load among the nodes is adopted to integrate the EV charging load with the conventional load of the distribution network. By adjusting the EV ownership, the EV capacity in the distribution network is analyzed and solved on the basis of the following indices: node voltage, branch current, and transformer capacity. Finally, by considering the 10-kV distribution network in some areas of an actual city as an example, we show that the proposed analysis method can obtain a more reasonable number of EVs to be accommodated in the distribution network.
KW - Capacity; charging load distribution; charging load forecasting; conventional load composition; electric vehicle; trip behavior
DO - 10.32604/ee.2023.024128