This paper describes the frequency control ancillary services (FCAS) that value the response speed of the frequency control resources and/or can only be provided, without curtailing available renewable energy, by inverter-coupled generation or storage technologies, which have, to date, been implemented or proposed all over the world. These services are referred to in the paper as fast frequency control ancillary services (FFCAS). The paper describes, among others, the following characteristics of the identified FFCAS: maximum response time, minimum time during which the response must be sustained, markets (if any) in which the agents can/must submit bids to provide the service, characteristics of the offers, whether the service is remunerated for the reserved capacity and/or the energy delivered, whether or not the service payment is performance-based, formulas used to determine the service payment, whether or not there exists a specific regulation signal for fast-acting resources, evolution of the service price. In addition, the paper describes a few FCAS which, though cannot be strictly speaking considered FFCAS, have a particularly demanding response time requirement.

本文介绍了频率控制辅助服务（FCAS），该服务重视频率控制资源的响应速度和/或只能通过逆变器耦合发电或存储技术提供，而不会减少可用的可再生能源，迄今为止，逆变器耦合发电或存储技术已经已在世界各地实施或提议。这些服务在本文中称为快速频率控制辅助服务（FFCAS）。该文件除其他外，描述了已确定的FFCAS的以下特征：最长响应时间，必须持续响应的最短时间，代理商可以/必须提供报价以提供服务的市场（如果有的话），报价，无论服务是针对预留的容量和/或所交付的能量而获得报酬的，服务付款是否基于绩效，用于确定服务付款的公式，是否存在针对速效资源的特定调节信号，以及服务价格的演变。此外，本文还介绍了一些FCAS，尽管不能严格说来认为它们是FFCAS，但它们对响应时间的要求特别高。