IEC 61400-26-1:20 19定义了一个信息模型，从中可以导出和报告基于时间和基于生产的服务可用性指标。 目的是提供标准化的指标，可用于根据用户的需求创建和组织可用性计算和报告的方法。 该文档提供了信息类别，明确描述了如何使用数据来描述和分类操作。信息模型指定类别优先级，用于区分可能的并发类别。此外，该模型定义了进入和退出标准，以将时间和生产值的分数分配给适当的信息类别。所有信息类别、退出和进入标准的全面概述见附件。该文件可以应用于任何数量的WTGS，无论是由单个涡轮机、风力涡轮机群、风力发电站还是风力发电站组合表示。从公共耦合的角度来看，风力发电站通常由所有WTGS、功能服务和工厂元件的平衡组成。 本第一版取消并取代IEC TS 61400-26-1:20 11、IEC TS 61400-26-2:20 14和IEC TS 61400-26-3:20 16。

IEC 61400-26-1:2019 defines an information model from which time-based, and production-based availability indicators for services can be derived and reported.
The purpose is to provide standardised metrics that can be used to create and organise methods for availability calculation and reporting according to the user’s needs.
The document provides information categories, which unambiguously describe how data is used to characterise and categorise the operation. The information model specifies category priority for discrimination between possible concurrent categories. Further, the model defines entry and exit criteria to allocate fractions of time and production values to the proper information category. A full overview of all information categories, exit and entry criteria is given in Annex.
The document can be applied to any number of WTGSs, whether represented by an individual turbine, a fleet of wind turbines, a wind power station or a portfolio of wind power stations. A wind power station is typically made up of all WTGSs, functional services and balance of plant elements as seen from the point of common coupling.
This first edition cancels and replaces IEC TS 61400-26-1:2011, IEC TS 61400-26-2:2014 and IEC TS 61400-26-3:2016.