农村电气化用小型可再生能源和混合系统的建议.第9-5部分:综合系统.农村电气化工程用独立可再生能源产品的实验室评价

[中文适用范围]： IEC 62257 的这一部分是一项技术规范，适用于具有以下特征的独立可再生能源产品： 提供基本能源服务所需的所有组件均作为套件出售/安装或集成到单个组件中，包括在最低限度;一个或多个电池组或其他储能装置；发电装置，例如太阳能电池板，能够为电池或其他能量存储装置充电；足以连接发电装置、电力控制单元和储能装置的电缆、开关、接线、连接器和保护装置；负载（可选），例如照明、负载适配器电缆（例如，用于移动设备）和电器（电视、收音机、风扇等）；光伏模块最大功率点电压和套件中任何其他组件的工作电压均不超过 35 V。满足适当安全标准的交流/直流转换器除外。注：该电压限值对应于 IEC 62109-1:2010 表 6 中潮湿场所的决定性电压分类 A (DVC-A) 的定义；光伏组件或其他发电装置的峰值功率额定值小于或等于350W；选择合适的系统组件不需要设计专业知识。本文件主要针对具有直流系统电压不超过 35 V 且峰值额定功率不超过 350 W 的电池和太阳能模块的离网可再生能源产品。本文中包含的测试在许多情况下能够充分评估更高电压下的系统和/或额定功率。在指定组织同意将这些测试应用于具有较高电压和额定功率的产品的情况下，测试实验室有责任确保采用足够的安全措施来保护技术人员和测试设备。指定组织还负责定义这些产品的消费者安全要求。 [外文原描述]： IEC TS 62257-9-5:2018 applies to stand-alone renewable energy products. This document deals essentially with off-grid renewable energy products with batteries and solar modules with DC system voltages not exceeding 35 V and peak power ratings not exceeding 350 W. The tests contained herein are capable in many cases of adequately assessing systems at higher voltages and/or power ratings. This new edition includes the following significant technical changes with respect to the previous edition: - replaced the term "stand-alone lighting kits" with "stand-alone renewable energy products" throughout the document (including the title) to reflect that the revised document is applicable to a broader range of products with a more diverse set of capabilities. - added test methods for flooded lead-acid batteries. - significantly revised the protection tests, assessment of DC ports, appliance tests, and energy service calculations based on field experience. - revised the voltage operating points at which testing is carried out to better reflect actual operation and to simplify the procedures for testing products without lights. - revised the energy service calculations to include the effect of multiple simultaneously connected loads on the port voltage and battery-to-port efficiency and to accommodate products with grid or electromechanical charging.