光伏发电系统（PVPS）——可用性信息模型

[中文适用范围]： ：本文件为光伏电源系统（PVPS）的可用性指标提供共同的理解基础。该基础由定义的指标组成，可用于PVPS运行中收集的数据。具体包括：a) 为PVPS的可用性和不可用性提供标准化的特征描述方法；b) 为确定不同时间段内PVPS的适当可用性形式提供标准方法，包括实时能力评估或用于向利益相关者报告可用性指标的较长时间段。本文件提供从其中可导出PVPS可用性指标并报告的框架。它描述如何对数据进行分类，并定义通用信息类别，考虑到PVPS的内部和外部条件，基于时间分数、系统健康和状况分配时间。PVPS包括所有光伏（PV）模块、逆变器、直流和交流收集系统、电网互联设备、现场、其基础设施以及所有功能性服务要素。 [外文原描述]： IEC TS 63019:2019 provides a framework from which the availability metrics of a PVPS can be derived and reported. It describes how data are categorized and defines generic information categories to which time can be assigned for a PVPS considering internal and external conditions based on fraction of time, system health, and condition by specifying the following: - generic information categories of a PVPS considering availability and production. - information category priority to discriminate between concurrent categories. - entry and exit point for each information category to allocate designation of time. The PVPS comprises all photovoltaic (PV) modules, inverters, DC and AC collection systems, grid interconnection equipment, the site, its infrastructure, and all functional service elements. Formulas in this document provide normative guidance for standardization. Beyond that, it is not the intention of this document to specify exactly how other undefined, time-based availability metrics shall be calculated. The annexes are examples and guiding principles for developing methods for calculation and estimation of availability metrics, subject to the knowledge and concurrence for use by the involved stakeholders. Estimates and calculations also have recommendations on how they are to be used as part of the informative function.