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考虑电动汽车充电桩无功响应的优化调度策略
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Optimal Dispatching Strategy Considering Reactive Response of Electric Vehicle Charging Piles
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    摘要:

    随着电动汽车的普及,大规模电动汽车入网对配电网造成的影响愈加明显. 在该背景下,提出了考虑电动汽车充电桩无功响应能力的充电站实时滚动优化调度策略,充分考虑电动汽车的时空分布特性以及充电站与电网之间的有功无功交互能力,建立双层模型分别从时间和空间上对充电站的有功无功进行优化调度. 分别采用二次规划、二阶锥规划对上、下层模型进行求解,最后以改进的IEEE33节点配电网系统进行仿真,仿真结果表明该策略可以有效降低系统负荷峰谷差,减小系统网损,改善系统电压水平.

    Abstract:

    With the popularity of electric vehicles,the impact of large-scale electric vehicles on the distribution grid will become more apparent. In this context,a real-time rolling optimization strategy for charging stations considering the reactive response capability of charging piles is proposed. The spatial and temporal distribution characteristics of electric vehicles and the active and reactive interaction capability between charging stations and power grids are fully considered. A two-layer model is established to optimize the active and reactive power of the charging station in time and space. The quadratic programming and the second-order cone programming are used to solve the upper and lower models. Finally,the simulation is carried out with the improved IEEE33 node distribution network system,and the simulation results show that the strategy can effectively reduce the load peak and valley difference as well as the active power loss of the system and improve the voltage level of the network.

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王冠?覮,刘苏贤,赵浩然,李波.考虑电动汽车充电桩无功响应的优化调度策略[J].湖南大学学报:自然科学版,2021,48(10):152~160

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  • 在线发布日期: 2021-11-11
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