A dynamic charging and discharging capacity assessment method for EVs considering transportation travel constraints

This paper presents a refined dynamic assessment method for the charging and discharging capacity of electric vehicles (EVs). The method takes into account the traffic and travel constraints of EV users, and quantifies their traffic and travel demand by constructing a feasible charging and discharging domain. The charging and discharging power of the EV is dynamically adjusted using the droop control strategy. Additionally, based on the battery charge state, EVs are categorized into four groups: two-way controllable, charge controllable, anti-power supply controllable, and uncontrollable. Building upon this categorization, an EV charging and discharging capacity assessment method based on dynamic subgroups is proposed. Finally, the effectiveness of this method is demonstrated through example analysis.