| 引用本文: | 刘 鹏,刘瑞叶,白雪峰,郭志忠.基于扩散理论的电动汽车充电负荷模型[J].电力自动化设备,2012,32(9): |
| LIU Peng,LIU Ruiye,BAI Xuefeng,GUO Zhizhong.Charging load model based on diffusion theory for electric vehicles[J].Electric Power Automation Equipment,2012,32(9): |
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| 摘要: |
| 探究了大量电动汽车并网充电的动态物理过程，指出该过程可以描述为以电动汽车并网速率为扰动变量的大量充电负荷由低荷电状态（SOC）向高SOC扩散的动态扩散过程。取两部分能量微元进行数学分析，提出电动汽车的扩散负荷模型。结合大量实际统计数据，运用所提模型与蒙特卡洛负荷模型对私家电动汽车充电负荷进行计算对比，验证了所提模型的准确度。所提模型将充电功率分为基准功率和可控功率，能反映不同连续时刻充电负荷之间的内在物理关联性。 |
| 关键词: 电动汽车 充电 电力负荷 模型 扩散理论 虚拟发电厂 |
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| Charging load model based on diffusion theory for electric vehicles |
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LIU Peng, LIU Ruiye, BAI Xuefeng, GUO Zhizhong
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School of Electrical Engineering & Automation，Harbin Institute of Technology，Harbin 150001，China
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| Abstract: |
| The dynamic physical process of grid-connected charging for plentiful electric vehicles is researched and it is described as the dynamic diffusion process of plentiful charging loads from low SOC（State Of Charge） to high SOC with the grid-connection speed of electric vehicles as the disturbance variable. The movement of two infinitesimal energy elements is mathematically analyzed and the diffusion charging load model is proposed. Based on the real statistical data，the charging load of private electric vehicles is calculated respectively with the proposed model and the Monte-Carlo load model to verify the accuracy of the proposed model. The proposed model divides the charging power into the reference power and the controllable power，which can reflect the internal physical correlation between the charging loads at sequential times. |
| Key words: electric vehicles charging （batteries） electric loads models diffusion process theory virtual power plant |
