IEC TS 62933-3-3:2022提供了为能源密集型、孤岛电网和备用电源应用设计、控制和运行EES系统时的要求、指南和参考。在能源密集型应用中，EES系统为支持的电网或用户设备提供可变功率的长充放电阶段。在孤岛运行中，EES系统向孤岛电网提供能量，并协调孤岛电网中的其他发电系统。在备用电源和应急支持中，当主电网电源不可用时，EES系统向内部电网或一组应急负载提供能量。

IEC TS 62933-3-3:2022 provides requirements, guidelines and references when EES systems are designed, controlled and operated for energy intensive, islanded grid and backup power supply applications. In energy intensive applications, the EES system provides long charge and discharge phases at variable powers to the supported grid or user equipment. In islanded operation, the EES system provides energy to the islanded grid and coordinates other power generation systems in the islanded grid. In backup power supply and emergency support, the EES system provides energy to the internal grid or a set of emergency loads when the main grid power supply is not available.