电动汽车充电对电网的影响研究

发布时间：2018-06-09 04:50

本文选题：电动汽车 + 电动汽车充电负荷　；参考：《首都师范大学》2014年硕士论文

【摘要】：在全球经济强劲增长,石油生产国剩余产能不足以及国际局势动荡等多方面的影响下,化石能源短缺问题日益严重。电动汽车具有能源清洁,低耗能等优点。世界各国都在不断的进行相关方面的研究,我国也在不断推进电动汽车的发展。当前电动汽车产业正步入快速发展期,未来的电网将会承受大规模的电动汽车充电负荷；本文的研究目的是探索电动汽车充电对电网的影响以及对策措施研究。论文首先对国内外电动汽车入网充放电的研究现状进行了总结学习。在此基础之上分析了电动汽车充电负荷的主要影响因素与建模方法；讨论了当前电动汽车入网建模的研究现状,并从电网负荷能力,电能质量,经济性和二氧化碳排放量等方面详细分析了电动汽车充电对电网的影响；从为电力系统提供辅助服务,与新能源的协调匹配,电网系统的经济性,电池寿命以及安全性等四方面总结了电动汽车利用v2G技术入网放电的影响。本文分析了影响充电负荷的四个因素,根据北京市的实际情况,建立合理的数学模型,运用蒙特卡洛的仿真方法对北京市在未来不同时期的电动汽车充电负荷进行了仿真计算。根据上述计算的电动汽车充电负荷曲线,研究其对电网系统的影响。通过对典型电网算例进行分析,发现大规模的无序充电行为会对电网的负荷,电压以及线损均造成不利影响。论文同时对未来电动汽车充电站的选址进行了研究,实验结果表明,单就电网方面而言充电站接入点离电源点越近,充电负荷对电网系统的各方面影响就越小。最后,论文提出了分时计价的政策措施引导电动汽车用户的充电行为,降低无序充电行为给电网系统带来的不利影响。
[Abstract]:Under the influence of strong global economic growth, insufficient surplus production capacity in oil-producing countries and the turmoil in the international situation, the problem of fossil energy shortage is becoming increasingly serious. Electric vehicles have the advantages of clean energy and low energy consumption. Countries all over the world are constantly carrying on the related research, and our country is pushing forward the development of electric vehicles. At present, the electric vehicle industry is entering a period of rapid development, the future power grid will bear a large scale of electric vehicle charging load; The purpose of this paper is to explore the influence of electric vehicle charging on power grid and the research of countermeasures. Firstly, this paper summarizes and studies the current situation of charging and discharging of electric vehicles at home and abroad. On this basis, the main influencing factors and modeling methods of electric vehicle charging load are analyzed, and the current research status of electric vehicle network modeling is discussed, and the load capacity and power quality of electric vehicle are discussed. In the aspects of economy and carbon dioxide emission, the influence of electric vehicle charging on power grid is analyzed in detail, from providing auxiliary services for power system, matching with new energy, and economy of power grid system, Four aspects of battery life and safety are summarized in this paper, such as battery life and safety. This paper analyzes the four factors that affect the charging load of electric vehicles by using v2G technology, and establishes a reasonable mathematical model according to the actual situation in Beijing. Monte Carlo simulation method is used to simulate the charging load of electric vehicles in Beijing in different periods in the future. According to the calculated charging load curve of electric vehicles, the influence on power grid system is studied. Through the analysis of typical power network examples, it is found that large-scale disordered charging behavior will adversely affect the load, voltage and line loss of the power network. At the same time, the thesis studies the location of the charging station of electric vehicle in the future. The experimental results show that the closer the charging point is to the power supply point, the smaller the impact of charging load on all aspects of the power system is. In this paper, time-sharing pricing policies and measures are proposed to guide the charging behavior of electric vehicle users and to reduce the adverse effects of disordered charging behavior on the power grid system.
【学位授予单位】：首都师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM714;U469.72

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