基于V2G技术的微电网优化调度的研究-计算机科学与技术;计算机应用技术专业论文.docx
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摘 要
我国经济持续的发展,对能源消费的需求也在快速增加。但是,过于依赖化 石能源以及能源利用效率不高的现实状况给环境和社会带来许多不利的影响。提 高化石能源的利用效率,促进清洁能源以及可再生能源发展的需求,推动了分布 式发电技术的发展。
分布式发电系统可靠性高、稳定性强而且可以对区域电力实时监控,在意外 发生时能继续供电,已成为集中式供电的重要补充。微电网将具有不同特性相互 补充的多种分布式电源组合起来,与大电网协调运行,最大限度地提高能源利用 效率和供电可靠性。V2G 技术指电动汽车可以在受控状态下实现与电网信息和能 量的双向交换的技术,V2G 技术使得电动车电池除了从电网吸收能量外,必要的 时候可以将电池能量反馈给电网。V2G 技术给未来电网的调峰和调频问题开辟了 新思路。
本文首先分析了 V2G 技术和微电网的特点,给出了一种电动汽车接入的微 电网分层分区运行管理框架。在此框架上针对微电网能量优化调度问题,给出了 实现 V2G 系统功能的微电网模型,设计了一种改进的思维进化算法(MEA)来 求解该模型,比较了传统数学优化方法和智能优化算法 MEA 的求解的效率。仿 真实验验证了改进思维进化算法在微电网优化调度中的能起到削峰填谷的作用并 能对微电网中的分布式电源进行合理的,而且该算法求解的优化调度模型给出的 调度方案较确定性优化方式的经济性更高,从而验证了本算法的有效性和效率。
关键词:微电网;优化调度;车网互联
Abstract
With the development of Chinas economy, the demand for energy consumption is also increasing rapidly. However, over-reliance on fossil fuels, and the efficiency of the use of energy is not high, this case brings many adverse effects to environmental and social. The demand for efficient use of fossil fuels and clean energy and renewable promotes the development of distributed generation technologies.
Distributed power generation system ,with high reliability and stability, can be real-time monitoring of the regional power, and when accident happens ,it can continue to supply, this makes it an important supplement to centralized power. Microgrid combines distributed power generation with different characteristics which may complementary each other, it can coordinate operate with large grid to maximize energy efficiency and reliability.V2G technology refers to the electric car can be achieved in a controlled state and bi-directional exchange of technical information and energy grid,V2G technology allows electric vehicle batteries to absorb energy from the grid, but when necessary, it can also give back energy to the grid.V2G technology opened up new ideas for future power peaking and FM issues.
This paper analysis the characteristics of V2G technology and microgrid, gives a microgrid operation and management framework for hierarchical partitioning ele
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