| 引用本文: | 王闪闪,赵晋斌,毛玲,刘琛,王晓晶.基于电动汽车移动储能特性的直流微网控制策略[J].电力系统保护与控制,2018,46(20):31-38.[点击复制] |
| WANG Shanshan,ZHAO Jinbin,MAO Ling,LIU Chen,WANG Xiaojing.A control strategy based on mobile energy storage characteristic of electric vehicles in DC micro-grid[J].Power System Protection and Control,2018,46(20):31-38[点击复制] |
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| 摘要: |
| 直流微电网中的分布式电源和负荷的功率双波动特性会导致直流母线电压变化，影响微电网的稳定运行。而电动汽车具有灵活的移动储能特性，可作为常规储能设备的补充，有效改善电压质量。为此，首先结合车和电池的运行特性，对电动汽车进行建模。其次，基于此模型，提出一种兼顾用户侧和微电网侧的电动汽车充放电控制策略。通过设定电池荷电状态滞环区间和直流微电网母线电压波动阈值范围，在满足用户用车需求的前提下，最大限度发挥电动汽车的储能特性，稳定直流母线电压。最后，通过仿真验证了所提出的电动汽车模型和充放电控制策略的有效性与可行性。 |
| 关键词: 直流微电网 移动储能 电动汽车 运行特性 充放电控制 母线电压 |
| DOI：10.7667/PSPC171523 |
| 投稿时间：2017-10-13修订日期：2018-01-29 |
| 基金项目:国家自然科学基金项目资助(51777120) |
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| A control strategy based on mobile energy storage characteristic of electric vehicles in DC micro-grid |
| WANG Shanshan,ZHAO Jinbin,MAO Ling,LIU Chen,WANG Xiaojing |
| (College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;Wuhan Textile University, Wuhan 430200, China) |
| Abstract: |
| Both power fluctuations of distributed power supply and load in DC micro-grid will cause the deviation of DC bus voltage and influence the stability of micro-grid. Electric Vehicles (EVs), with the flexible mobile energy storage characteristic, can be utilized as the supplement of the conventional energy storage device to improve voltage quality effectively. Firstly, a model of EVs combined with operating status of EVs and battery is proposed. Secondly, based on this model and considering the need of the users as well as micro-grid, a control strategy of charge and discharge is put forward. By setting the battery charged state hysteresis interval and DC micro-grid bus voltage fluctuation threshold range, EVs’ energy storage property is played furthest in stabilizing the DC bus voltage on the premise of users’ requirements. Finally, the validity and feasibility of proposed model and control strategy of charge and discharge of EVs are validated through the simulation. This work is supported by National Natural Science Foundation of China (No. 51777120). |
| Key words: DC micro-grid mobile energy storage electric vehicles (EVs) operating status charge and discharge control bus voltage |
