可再生能源离网系统 第200部分：系统选择与设计

[中文适用范围]： IEC TS 62257-200:2026 提供了一种描述电气化系统应实现结果的方法，该方法独立于可实施的具体技术方案。本部分旨在为可再生能源系统设计者、项目承包商及项目开发方提供指导，帮助其针对离网场所设计电气化系统，以满足已识别的需求。本部分评估了用户需求，并分析了可用于满足这些需求的不同电力系统架构，同时列出了与项目各相关方需求相对应的生产与配电子系统应实现的功能要求。 本文件为参与离网电气化项目（包括但不仅限于项目开发方、融资机构、测试机构、安装商等）的各方提供技术标准化支持，旨在帮助无法仅依靠区域电网获取电力的群体获得电力。实现途径包括建设离网可再生能源系统和混合系统（含微电网），其交流电压不超过 1000 伏，直流电压不超过 1500 伏。 本文件既适用于农村电气化，也可用于发达国家偏远地区的电气化，以及任何无法仅通过接入国家公用电网满足的电力获取需求。本文件倡导使用可再生能源，但现阶段不涉及清洁能源机制的发展（如二氧化碳排放、碳信用等）。 [外文原描述]： IEC TS 62257-200:2026 provides a method for describing the results to be achieved by the electrification system independently of the technical solutions that could be implemented. The purpose of this part of IEC 62257 is to provide a method to assist designers of renewable energy systems, project contractors and project developers to design the electrification system for isolated sites while matching the identified needs. This part of IEC 62257 assesses the needs of the users and the different power system architectures which can be used for meeting these needs. In relation to the needs of the different participants to the project, functional requirements to be achieved by the production and distribution subsystems are listed. This document provides technical standardization to different stakeholders (including but not limited to project developers, financing agencies, testing agencies, installers, etc.) involved in electrification projects for access to electricity for those not solely connected to the regional grid, through the setting up of off-grid renewable energy and hybrid systems (including micro-grids) with a voltage less than or equal to 1 000 V for AC (alternating current) or a voltage less than or equal to 1 500 V for DC (direct current). This document could be used for rural electrification, also for electrification of remote sites in developed countries, or any requirement for electricity access that cannot be met by attaching solely to the national utility grid. They promote the use of renewable energies, but at this time they do not deal with clean-energy mechanisms development (CO2 emissions, carbon credit, etc.).