标准摘要
[中文适用范围]： 本文件规定了农村电气化分散系统中发电机组选择、 sizing（ sizing 即容量确定）、安装和运行的一般要求。它适用于所有由可再生能源（如生物质气化或沼气）或化石燃料（如汽油或柴油）供电的低电压燃烧发动机发电机组，设计用于为 IEC TS 62257-2 中所述的系统中使用的孤立场所供电。本文件不是关于发电机组设计、安装、运行或维护的详尽资源，而是更侧重于提供关于选择及可能影响此类发电系统在 rural（农村）电气化项目中使用的策略的建议。将考虑四种微型发电厂的情况，如图 1 所示，为集体电气化系统（微电网）或独立电气化系统供电：微型发电厂由一台发电机组组成；微型发电厂由多台发电机组组成，这些机组可能具有单一能源或多能源；微型发电厂是发电机组与功率调节子系统（PCS）之间的混合能源系统，该子系统由包括可再生能源或储能在内的其他能源供电；微型发电厂是多台发电机组与多个功率调节子系统（PCSs）之间的混合能源系统，这些子系统由包括可再生能源或储能系统在内的其他能源供电。本文件的目的是为用户提供适当指南，以便在选择用于不同配置、不同可靠性水平和设备预期服务寿命期间安全性的微型发电厂中使用的发电机组。它描述了发电机组功能和安全要求的最低要求，并不声称是详尽的操作手册或设计规范。 [外文原描述]： IEC TS 62257-7-3:2018(E) specifies the general requirements for the selection, sizing, erection and operation of generator sets in decentralized rural electrification systems. It applies to all low voltage combustion engine electricity generator sets energized by renewable energy such as biomass gasifier or biogas, or fossil fuel such as gasoline or diesel fuel, and designed for supplying electrical power to isolated sites used in systems as described in IEC TS 62257-2. The aim of this document is to provide users with the appropriate guide to select generator sets for using in micropower plant with different configurations and levels of reliability and safety of the equipment during its estimated service lifespan. This document describes the minimum requirement of generator set functionality and safety requirements and does not claim to be an exhaustive instruction manual or design specification. The main technical changes of this new edition with regard to the previous edition are as follows: - Increased the voltage and power levels to which this TS applies. - Added descriptions of four different types of micropower systems and their relevant requirements.
英文名称Recommendations for renewable energy and hybrid systems for rural electrification - Part 7-3: Generator set - Selection of generator sets for rural electrification systems