| 引用本文: | 郭建龙,文福拴.电动汽车充电对电力系统的影响及其对策[J].电力自动化设备,2015,35(6): |
| GUO Jianlong,WEN Fushuan.Impact of electric vehicle charging on power system and relevant countermeasures[J].Electric Power Automation Equipment,2015,35(6): |
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| 摘要: |
| 归纳电动汽车有序充电研究的要点和现状，包括充电负荷描述、充电影响仿真、有序充电的策略方法。基于建模机理，把负荷描述归纳为基于充电行为机理、概率模型以及智能算法3类，对影响充电负荷的各个因素及其相互关系进行分析，指出基于概率统计的随机方法是分析大量电动汽车随机充电行为的主要建模方法，充电影响因素的精确模拟是模型进一步改善的方向；从对系统可靠性影响、对电能质量影响和对系统运行经济性影响3个维度概述大量电动汽车充电接入对系统的影响，分析充电影响的模拟结果及调控方法，指出在充电影响仿真中需更多地计及充电的随机分散特性，充电影响的暂态过程也值得关注；针对有序充电的策略方法，归纳为基于最优经济运行的充电模型、最优市场机制和商业运营模式、时空有序性3类方法，3类方法本质上归结为随机系统的最优化问题。展望指出配电系统的规划与电动汽车充电站有序充电之间的关系研究及换电模式下充电电价的定价理论需进一步深入研究，为实现时间、空间2个维度上的有序充电提供理论依据。 |
| 关键词: 电力系统 电动汽车 充电负荷 充电影响 有序充电 模型 |
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| 基金项目:国家重点基础研究发展计划（973计划）资助项目（2013CB228202）；国家自然科学基金资助项目（51107114，51177145） |
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| Impact of electric vehicle charging on power system and relevant countermeasures |
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GUO Jianlong1, WEN Fushuan2
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1.School of Electric Power，South China University of Technology，Guangzhou 510640，China;2.College of Electrical Engineering，Zhejiang University，Hangzhou 310027，China
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| Abstract: |
| The key points and status quo of the researches on coordinated electric vehicle charging are summarized，including charging load description，charging impact simulation and coordinated charging strategy. The charging load description is classified into three types：charging behaviour，probability model and intelligent algorithm. The influencing factors of charging load and the relationships among them are investigated，and it is suggested that，the stochastic method based on probability model is the main modelling approach to analyze the random charging behaviour of massive electric vehicles while the accurate simulation of influencing factor is the direction of model improvement. The impacts of heavy electric vehicle charging load on power system are summarized in three aspects：system reliability，power quality and operating economy. The simulative results of charging impact and the relevant control methods are analyzed，and it is pointed out that，the randomness and distribution of electric vehicle charging should be more considered and more attention should be paid to its transient process. The coordinated charging strategies are classified into three types：optimal charging model，optimal market mechanism and business pattern，and spatial-temporal sequence，all of which are essentially related to the optimization of stochastic system. It is further pointed out that，the relationship between distribution system planning and coordinated electric vehicle charging as well as the pricing theory of battery-swapping should be more deeply studied to provide theoretical basis for the coordinated electric vehicle charging in both time and space dimensions. |
| Key words: electric power systems electric vehicles charging load charging impact coordinated charging models |
