能源和环境已经成为世界最为关注的话题,世界上许多国家考虑发展电动汽车作为解决能源和环境问题的方法,因此非常有必要研究电动汽车充放电对电网的影响。首先必须建立一个电动汽车动力电池模型。本文通过实验仿真研究建立了一个PNGL和戴维南仿真模型,并与真实的测量数据进行了对比,结果证明这两种方法的仿真模型是合适的,因此模型搭建比较合理。 Energy and the environment have become the world’s most talked about topics. Many countries in the world consider the development of electric vehicles as a solution to energy and environmental problems. Therefore, it is very necessary to study the impact of electric vehicle charging and discharging on the power grid. First, we must establish a model of electric vehicle battery. In this paper, a PNGL and Thevenin simulation model is established by experimental simulation, and compared with the real measurement data. The results show that the simulation models of these two methods are suitable, so the model is reasonable.