考虑电动汽车的微电网经济调度策略研究

发布时间：2018-03-04 16:05

  本文选题：电动汽车　切入点：V2G　出处：《南京师范大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着全球经济的飞速发展,如何解决日趋严峻的能源危机和环境污染已成为当今世界所面临的首要问题。由可再生能源等新能源构成的分布式电源可以在缓解电力紧张的同时降低环境污染,而电动汽车以电代油,能够有效减少化石燃料的使用和降低碳排放量水平,同时兼具负荷和分布式电源的双重特性。若将由分布式电源构成的微电网系统作为可控单元与主网互联,并将电动汽车接入该系统中,可以在一定程度上缓解主网的供电压力,同时也可更加有效地对电动汽车的充放电行为进行控制与调度。本文从经济角度出发,对电动汽车充放电行为进行了深入研究,建立含有电动汽车的微电网系统模型,提出该系统在不同运行模式下的经济调度策略,并通过智能算法进行分析讨论。论文的主要研究成果如下：首先,分析电动汽车充电行为的影响因素,讨论不同类型电动汽车的充放电行为;建立基于蒙特卡罗法的规模化电动汽车充放电负荷模型,分析电动汽车负荷在不同充放电模式下对电网负荷的影响。结果表明,电动汽车以V2G模式接入微电网,可以更加有效地实现对车辆负荷的控制与调度。其次,提出含有电动汽车的微电网系统结构,建立各分布式电源的数学模型；针对微电网并网和孤岛两种运行模式,分别提出不同的经济运行控制策略；综合考虑电网侧、用户侧的经济性以及环境效益,建立含电动汽车的微电网多目标经济调度模型。最后,采用改进的NSGA-Ⅱ算法对含电动汽车的微电网经济调度模型进行算例分析,以某典型日为例,讨论微电网在并网和孤岛两种运行模式下,不同运行控制策略的调度计划,并分析其经济性。
[Abstract]:With the rapid development of the global economy, How to solve the increasingly severe energy crisis and environmental pollution has become the most important problem facing the world today. The distributed power source composed of renewable energy and other new energy sources can reduce the environmental pollution while reducing the power shortage. Electric vehicles with electricity instead of oil can effectively reduce the use of fossil fuels and reduce carbon emissions. If the microgrid system composed of distributed power supply is connected with the main network as a controllable unit and the electric vehicle is connected to the system, the power supply pressure of the main network can be alleviated to a certain extent. At the same time, the charging and discharging behavior of electric vehicle can be controlled and controlled more effectively. In this paper, the charging and discharging behavior of electric vehicle is studied from the economic point of view, and the model of micro-grid system with electric vehicle is established. The economic scheduling strategy of the system under different operation modes is put forward and analyzed by intelligent algorithm. The main research results of this paper are as follows: firstly, the factors influencing the charging behavior of electric vehicles are analyzed. The charge-discharge behavior of different types of electric vehicles is discussed, the charging and discharging load model of large-scale electric vehicles based on Monte Carlo method is established, and the influence of electric vehicle load on power grid load under different charging and discharging modes is analyzed. The V2G mode of electric vehicle can be used to control and dispatch the vehicle load more effectively. Secondly, the structure of the micro-grid system with electric vehicle is proposed, and the mathematical model of each distributed generation is established. Different economic operation control strategies are proposed for microgrid grid-connected and isolated island operation modes, considering the economic and environmental benefits of grid side, user side, and so on. Finally, an improved NSGA- 鈪，

本文编号：1566339