农村电气化用可再生能源和混合系统的建议.第2部分:从要求到一系列电气化系统

[中文适用范围]： IEC 62257 的这一部分提出了一种建立和开展社会经济研究的方法，作为分散式农村电气化项目框架的一部分。它面向项目团队，特别是负责国际项目社会经济研究的专家。收集的详细信息数量和所需专家数量将取决于拟议项目的规模。对于涉及许多家庭的大型项目，需要进行详细的研究，对于涉及单个或少数家庭的项目，研究可能会被缩短。来自此类初步研究的信息可用于多种目的，例如对电气化项目进行更完整的经济和财务研究。该技术规范还提供了一些结构作为可以推荐的技术解决方案，具体取决于定性和定量的能源需求，并符合客户的需求和财务状况。然后，针对所提议的系统范围的每个模型，向技术项目经理提出电气架构，以协助设计系统。 [外文原描述]： IEC TS 62257-2:2015(E) proposes a methodological approach for the setting up and carrying out of socio-economic studies as part of the framework of decentralized rural electrification projects. It is addressed to project teams and in particular to experts in charge of socio-economic studies in international projects. This technical specification also provides some structures as technical solutions that could be recommended, depending on the qualitative and quantitative energy demands, consistent with the needs and financial situation of the customers. The main technical changes with regard to the previous edition are as follows: - redefine the maximum AC voltage from 500 V to 1 000 V, the maximum DC voltage from 750 V to 1 500 V; - removal of the limitation of 100 kVA system size. This publication is to be read in conjunction with IEC 62257 series .