通过V2G技术,不仅可以缓解可再生能源引起的电网波动问题,提高电网效率,还可以为电动汽车用户创造收益。因此, V2G(Vehicle to Grid)技术正受到人们的广泛关注,本文介绍了V2G的意义和系统结构,并简要介绍了电动汽车连接智能电网的两种新型的互动充电策略：分散式互动策略和集中式互动策略。重点介绍了V2G技术中电动汽车与电网互动双向电能检测系统的设计。该检测系统利用Cirrus Logic公司推出的电能计量专用芯片CS5460A,具有采集数据准确,控制性能灵活且性价比高的优点,适用于V2G系统中的双向电能检测，很好的弥补了市场上直流电能检测系统的不足。
英文摘要:
The V2G technology can not only alleviate the fluctuation of the power grid’s voltage and frequency caused by renewable energy and improve power grid’s efficiency, but also create benefits for the electric vehicle users. Consequently, the technology of Vehicle to Grid(V2G) is attracting people’s attentions widespreadly. This paper introduces the significance and the structure of the V2G system, and briefly introduces two new interaction charging strategies of the electric automobile integrated with smart grid:distributed interactive strategy and centralized interactive strategy. The designing of the bi-directional power measurement system in the EVs integrated with smarter grid is mainly introduced. The detection system uses Logic’s production of dedicated electric energy metering chip CS5460A.The sysytem is accurate in data collection, flexible in control performance and highly cost-effective and suitable for measuring bidirectional power in V2G system.It makes up for the deficiency of DC electric energy measurement system.