关键词: 电动汽车, 城市路网, 交能融合系统, 碳排放量, 潮流分布均匀程度, 电网运行稳定性, 用户满意度

Abstract:

To address the unbalanced power flow in distribution networks of urban areas caused by the large-scale grid-connection of electric vehicles （EVs）， a method for the optimization of travel routes and economic operation strategies for integrated transportation and energy systems considering EV carbon emissions was proposed， along with corresponding solution methods. The urban areas and their functions were analyzed， and the Huff model was used to quantify the regional travel attractiveness， enabling precise zoning of cities and numerical simulation of EV charging loads. The flow fueling location model （FRLM） evaluation system was introduced to select suitable locations for EV charging stations. This helped organize the mapping of EV loads to the power flow grid， thereby forming a "transportation-energy" coupling network that took both EV charging service coverage and power supply uniformity into consideration. Based on the carbon emissions from EV travel， the user equilibrium theory was adaptively improved， complemented by a power flow uniformity evaluation function guided by grid stability optimization. Then，an EV travel route optimization system that guided the reasonable distribution of local load peaks was established， ensuring that the proposed solution aligned with the expectations for economic and low-carbon operation. Moreover， a simulation analysis was conducted on an IEEE 33 node distribution network and a main road network model of an urban area. The results verified the effectiveness and feasibility of the proposed model.

Key words: electrical vehicle, urban road network, integrated transportation and energy system, carbon emissions, power flow distribution uniformity, power grid operation stability, user satisfaction