插电式电动汽车入网体系框架研究

Research on system framework of plug-in electric vehicles integrated into electric power system

为解决未来电动汽车(EVs)普及所带来的能源供应紧缺及其接入对电网的影响等问题,将车辆入网(V2G)技术应用到智能电网中。简要综述了V2G概念及研究现状,探讨了在中国实现EV入网的几种模式,提出了在未来中国智能电网环境下EV通过微网并与大电网进行融合的框架结构,从电网技术操作与电力市场经济两方面,对所有参与EV入网过程与活动的参与者作了描述,最后给出了需要开展研究的技术重点和方向。研究结果表明,该V2G技术及其体系框架可充分利用车载储能系统与电网功率进行双向互动,支持大规模可再生能源利用,提高电力系统效率及稳定性,加快电动汽车普及。

In order to solve the problems of energy supply shortages brought by the popularization of electric vehicles （EVs）and impacts on electric power system integration, the vehicle-to-grid （V2G）technology was applied to the smart grid. Firstly, the concept and state-of-the-art research of V2G were reviewed briefly. Then, several models for EVs connected with the grid realized in China were discussed. Meanwhile, a framework that EVs integrated into the grid through the microgrids under the environment of Chinese future smart grid was proposed. All the players involved in both these processes, as well as their activities, were described from two different domains：the grid technical operation and the electricity markets economic. Finally, the key technology and technical direction to be researched were pointed out. The results indicate that, the V2G technology and its system framework can make full use of the vehicle＇s energy storage system to have a two-way interaction with the grid, support the large sized application of renewable energy, improve the efficiency and stability of power system, and have certain practical significance for speeding up the adoption of EVs.