IEC 62933的这一部分是一份技术报告，介绍了电动汽车（EV）充电站中的电能存储（EES）系统的案例研究，该充电站具有电压水平为20 kV及以下的光伏发电（PV-EES-EV充电站）。EES系统之所以在本文件中得到强调，是因为它们是使充电站（尤其是大功率快速充电站）对电网友好、提高清洁能源发电的自用电量以及增加充电站收入的理想选择。在这个应用中，EES系统通过在各种可用的操作模式下运行，如调峰、功率平滑、负载跟踪、使用时间（TOU）价格套利和辅助服务，表现出优异的性能。根据EES系统的运行特性总结，建议采用一般占空比。 购买本文件时可获得的所有当前修订均包含在购买本文件中。

This part of IEC 62933, which is a Technical Report, presents a case study of electrical energy storage (EES) systems located in electric vehicle (EV) charging stations with photovoltaic (PV) power generation (PV-EES-EV charging stations) with a voltage level of 20 kV and below. EES systems are highlighted in this document because they are a desired option to make the charging stations (especially the high-power fast charging stations) grid-friendly, improve the self-consumption of clean energy generation, and increase the revenue of stations. In this application, EES systems show excellent performance by running in a variety of available operating modes, such as peak shaving, power smoothing, load tracing, time-of-use (TOU) price arbitrage, and ancillary services. The general duty cycle is recommended based on the summary of the operation characteristics of the EES systems.All current amendments available at time of purchase are included with the purchase of this document.