考虑电动汽车充电站的配网规划研究

Research on Distribution Network Planning Considering Electric Vehicle Charging Station

大量的电动汽车将成为一种新型负荷对配电网规划提出新要求,完善电动汽车充电设施网络是电动汽车发展中的重要因素,本文提出了一种考虑电动汽车充电站的配网规划方法。首先,介绍了电动汽车的电池特性和运行规律。其次,采用基于概率分布统计的蒙特卡洛方法建立了负荷预测数学模型,提出求解电动汽车充电负荷的解决思路。然后,考虑以配电网中新建线路和电动汽车充电站的投资运行总成本最小为目标,构建含充电站的配网规划数学模型。最后,以电压等级为10KV的配电网为算例,通过设置合理的参数,运用MATLAB和MATPOWER软件进行仿真。算例仿真结果验证了模型的合理性与有效性。

A large number of electric vehicles will become a new type of load and put forward new require-ments on the distribution network planning. The improvement of the electric vehicle charging fa-cility network is an important factor in the development of electric vehicles. In this paper, a dis-tribution network planning method considering electric vehicle charging stations is proposed. Firstly, the battery characteristics and operation rules of electric vehicles are introduced. Secondly, a Monte Carlo method based on probability distribution statistics is used to establish a load fo-recasting mathematical model, and a solution idea for solving the electric vehicle charging load is proposed. Then, considering the minimum total investment and operation cost of the new lines and electric vehicle charging stations in the distribution network as the goal, a mathematical model for distribution network planning including charging stations is constructed. Finally, the distribution network with a voltage level of 10 KV is taken as an example, and MATLAB and MATPOWER software were used for simulation by setting reasonable parameters. The simulation results of the numerical examples verify the rationality and effectiveness of the model.