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电动汽车接入电网(V2G)将电动汽车与智能电网相结合,既解决了电动汽车大规模发展带来的充电压力问题,又可将电动汽车作为移动的、分布式储能单元接入电网。宽带无线和无线结合有线通信为V2G进行双向、实时和大容量数据信息交互提供了技术保障,安全可靠的通信技术是V2G发展的前提,是保障智能电网稳定运行的基础。本文首先讨论了V2G的通信技术,通过分析4种通信技术在V2G中的应用比较,得出无线通信和无线结合有线通信将可以很好地解决V2G的通信问题。本文分析了V2G通信中所面临的安全威胁与安全需求,并给出V2G的通信安全框架,分析了各层次的安全目标,最后给出初步的安全实施策略。
Electric Vehicle Access Grid (V2G) combines electric vehicles and smart grids to solve the problem of charging pressure caused by the large-scale development of electric vehicles and to connect electric vehicles as mobile and distributed energy storage units to the grid. Broadband wireless and wireless combined with wired communication provide technical support for V2G to exchange bi-directional, real-time and large-capacity data information. Secure and reliable communication technology is the prerequisite for the development of V2G and the basis for ensuring the stable operation of the smart grid. This paper first discusses the V2G communication technology. By analyzing the application of the four communication technologies in V2G, we conclude that wireless communication and wireless combined with wired communication can solve the problem of V2G communication well. This paper analyzes the security threats and security requirements facing V2G communication, and gives the V2G communication security framework, analyzes the security goals at all levels, and finally gives the initial security implementation strategy.