Dynamic frequency response from electric vehicles considering travelling behavior in the Great Britain power system
Dynamic frequency response from electric vehicles considering travelling behavior in the Great Britain power system
复制标题
考虑英国电力系统行驶行为的电动汽车动态频率响应
DOI：
10.1016/j.apenergy.2015.10.159
复制
发表时间：
2016
期刊：
影响因子：
11.2
通讯作者：
Qu Bo
中科院分区：
文献类型：
--
作者：
Meng Jian;Mu Yunfei;Jia Hongjie;Wu Jianzhong;Yu Xiaodan;Qu Bo
为了追求全球的低碳发展，大规模的可再生能源发电将并入电力系统。以英国为例，英国电力系统风能并网潜力巨大。风力发电的间歇性会对系统频率稳定性产生很大影响。电动汽车（EV）在交通运输行业脱碳方面发挥着至关重要的作用。为了提高风能的利用率，电动汽车由于其快速的功率反应特性，建议为电力系统提供频率响应服务。本文提出了一种考虑电动汽车用户出行行为的通用动态电动汽车频率控制策略。采用下垂控制方法根据频率信号调节电动汽车充放电功率。提出了强制充电边界（FCB）和强制充电区域（FCA），以保证电动汽车电池在拔电时有足够的能量供用户出行。开发了动态虚拟能量存储系统（VESS）来评估电动汽车集群的频率响应能力。在案例研究中，利用国标电力系统模型来研究控制策略的频率控制效果。仿真结果表明，该策略为电力系统提供了有效的电动汽车频率响应，从而能够促进风能并网。
In order to pursue the low-carbon development around the world, a large scale of renewable generation will be connected to the power systems. Take the Great Britain (GB) as an example, the GB power system has a large wind energy integration potential. The intermittency of wind generation will have great impact on the system frequency stability. Electric vehicles (EVs) have a crucial role in decarbonizing the transport sector. To increase the utilization of wind energy, EVs are suggested to provide frequency response service to the power system due to their quick power reaction characteristic. This paper proposes a general dynamic EV frequency control strategy considering the travelling behavior of the EV users. A droop control method is used to regulate the EV charging/discharging power according to the frequency signal. A Forced-Charge Boundary (FCB) and a Forced-Charge Area (FCA) are proposed to guarantee sufficient energy in the EV battery for user’s travel at the plug-out time. A dynamic Virtual Energy Storage System (VESS) is developed to evaluate the frequency response capacity of the EV clusters. In the case study, the model of the GB power system is used to investigate the frequency control effect of the control strategy. The simulation results show that the proposed strategy provides effective EV frequency response to the power system and thus is able to facilitate the integration of wind energy.