针对配电网中分布式可再生能源出力波动及多能源负荷用能不确定性导致的功率波动等问题,提出一种将电氢汽车作为移动储能的高比例可再生能源配电网电氢充放能设备规划模型,该模型能有效解决配电网电力电量平衡协调优化目标下的电氢充放能设备优化配置。首先,基于电氢汽车的移动储能特性建立考虑交通网络拓扑约束的电氢储能时空转移特性和充放能特性模型;其次,基于配电网与交通网络拓扑对应关系、可再生能源出力变化特性及电氢移动储能特性,以电氢充放能设施及配网运行成本最小化为目标,建立充放能设施优化配置模型及其求解算法;最后,基于辽宁某地区配电网网架结构建立电氢充放能设施优化配置仿真模型,验证该文所提优化配置方法在提高配电网多能源功率和能量平衡能力、充放能可靠性等方面的有效性。
Abstract
In response to issues such as power fluctuations caused by the variability of distributed renewable energy output and the uncertainty of multi-energy load consumption in distribution networks, this article proposes a planning model for electric-hydrogen charging and discharging equipment in high-proportion renewable energy distribution networks, utilizing electric-hydrogen vehicles as mobile energy storage. This model effectively addresses the optimal configuration of electric-hydrogen charging and discharging equipment under the goal of coordinating and optimizing power and energy balance in the distribution network. Firstly, based on the mobile energy storage characteristics of electric-hydrogen vehicles, a model is established that considers the spatiotemporal transfer characteristics and charging-discharging behaviors of electric-hydrogen energy storage under the constraints of traffic network topology. Secondly, considering the correspondence between the distribution network and traffic network topology, as well as the variability of renewable energy output and the characteristics of electric-hydrogen mobile energy storage, an optimization model for the configuration of charging-discharging facilities is developed, aiming to minimize the operational costs of both the charging-discharging facilities and the distribution network, along with a corresponding solving algorithm. Finally, a simulation model for the optimal configuration of electric-hydrogen charging-discharging facilities is established based on the distribution network framework of a certain area in Liaoning, verifying the effectiveness of the proposed optimization method in enhancing the multi-energy power and energy balancing capabilities of the distribution network, as well as the reliability of charging and discharging.
关键词
配电网 /
能量平衡 /
纯电动汽车 /
移动储能 /
可靠性约束
Key words
distribution networks /
energy balance /
all-electric vehicle /
mobile energy storage /
reliability constraint
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基金
国家电网公司科技项目（SGLNDD00HLJS2311059）
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