V2G模式下的EV建模研究

风电并网规模的不断扩大给电力系统的稳定运行带来了巨大的挑战.针对不断增加的SR需求,提出了将EV作为SR调度的研究方法.文中对EV的充放电特性进行了分析及仿真,并采用成本效益分析法建立了系统发电成本、备用成本和EV调度成本之和最小的目标函数.采用蒙特卡洛模拟对V2G模式下的EV进行仿真,考虑分时电价策略,确定出了最佳的...

Research on EV Modeling in V2G Mode

The continuous expansion of grid-connected wind power has brought considerable challenges to power system's stable operation. In response to the increasing demand for SR, a method using EV as SR scheduling is proposed. This study analyzes and simulates the charging and discharging characteristics of EV, and uses cost-benefit analysis to establish an objective function that minimizes the sum of system power generation costs, backup costs, and EV dispatch costs. The EV in V2G mode is stimulated through Monte Carlo simulation. With consideration of the time-of-use price strategy, the optimal charging and discharging period is determined, and the EV charging and discharging curve in V2G way is drawn. Based on the SR provided by thermal power units, different scenarios are divided based on whether the EV participates in scheduling as an SR. Finally, through the comparative analysis of the total operating cost and the probability of load loss of the units in different scenarios in the calculation example, the scientificity and feasibility of EV as SR scheduling are verified.