规模化电动汽车接入对电网运行及充电设施规划的影响研究

发布时间：2018-04-27 19:04

本文选题：电动汽车 + 充电需求　；参考：《华中科技大学》2014年硕士论文

【摘要】：全世界范围内正在面临的化石能源危机和全球气候变暖带来的压力使交通运输领域正在发生巨大变化。作为减少碳排放和保障能源安全的有效途径，电动汽车具有很好的发展前景。为了促进电动汽车的推广，方便电动汽车接入电力系统补充电能，各国政府建造了大量的充电设施。然而，规模化电动汽车产生的充电需求将为电力系统增加大量负荷，其充电的无序性也会给电网的安全运行带来不利影响。因此，量化评估规模化电动汽车充电对电网的影响，研究充电设施优化规划方法，是提高电网接纳电动汽车能力，支撑电动汽车健康发展的基础和前提。在电动汽车充电需求时空分布规律研究方面，以私人燃油汽车行驶规律为参考，通过分析车主用车行为给出了电动汽车充电需求的时间分布。结合某市出租车车载GPS信息，分析了出租车GPS信息与电动汽车充电需求地理分布的关系，，建立了电动汽车充电需求的空间分布模型。并利用汽车市场的历史发展规律，给出了电动汽车发展规模和充电负荷预测方法。在规模化电动汽车接入对电网运行的影响研究方面，以已有的电动汽车时空分布规律为基础，研究了不同渗透率下电动汽车充电对小区配网、城市输电网负荷曲线的影响。结合工程实际，分析了快速充电站对配电网电压闪变的影响，确定了适合快速充电站接入的电压等级，并提出了满足闪变要求的智能快速充电站建设方案。在充电设施优化规划方法研究方面，针对私人电动汽车领域采用的充电模式，提出了以同时充电率为主要指标的电动汽车充电站规划与服务能力评估分析方法。针对公共交通领域广泛采用的换电模式，提出了一种换电站—电池充电站建设模式及相应的优化规划模型。并以某城市实际统计数据为例给出了该市公交汽车换电站、电池充电站以及其充电设备、换电设备和电池的规划方案。
[Abstract]:The worldwide fossil energy crisis and the pressure of global warming are making great changes in transportation. As an effective way to reduce carbon emissions and ensure energy security, electric vehicles have a good development prospects. In order to promote the promotion of electric vehicles and facilitate electric vehicles to connect to the power system to replenish electricity, governments have built a large number of charging facilities. However, the charging demand generated by large-scale electric vehicles will add a lot of load to the power system, and the disorder of charging will also have a negative impact on the safe operation of the power grid. Therefore, it is the foundation and premise to evaluate the impact of large-scale electric vehicle charging on the power grid quantitatively and to study the optimal planning method of charging facilities to improve the electric vehicle capacity and support the healthy development of electric vehicle. In the research of the temporal and spatial distribution of electric vehicle charging demand, the time distribution of charge demand of electric vehicle is given by analyzing the behavior of vehicle owner, taking the driving law of private fuel vehicle as a reference. This paper analyzes the relationship between taxi GPS information and the geographical distribution of electric vehicle charging demand, and establishes the spatial distribution model of electric vehicle charging demand. The development scale and charge load forecasting method of electric vehicle are given by using the historical development law of automobile market. In the aspect of research on the influence of large-scale electric vehicle access on power grid operation, the influence of electric vehicle charging under different permeability on the distribution network and load curve of urban transmission network is studied based on the existing temporal and spatial distribution law of electric vehicle. Combined with engineering practice, the influence of rapid charging station on voltage flicker in distribution network is analyzed, the voltage grade suitable for fast charging station access is determined, and the construction scheme of intelligent fast charging station is put forward to meet the flicker requirement. In the research of charging facilities optimization planning method, aiming at the charging mode adopted in the field of private electric vehicle, the paper puts forward the evaluation and analysis method of charging station planning and service capability of electric vehicle with simultaneous charge rate as the main index. In view of the widely used power exchange mode in the field of public transportation, this paper puts forward a construction mode and the corresponding optimization planning model of the switching power station and the battery charging station. Taking the actual statistical data of a certain city as an example, the planning scheme of bus power station, battery charging station and its charging equipment, power exchange equipment and battery in the city are given.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.8;TM732

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