将分布式光伏集成到低压直流系统及应用案例的技术报告

[中文适用范围]： IEC TR 63534:2025 回顾了与 LVDC 系统耦合的太阳能光伏系统领域的现有理论尝试和工程应用。有三个方面与标准汇编高度相关：适合促进 PV 和 LVDC 网络之间互连的电力转换器和可能的控制机制；本地光伏系统孤岛检测算法以及主电网故障时的故障穿越； PV与LVDC系统相互作用的稳定性分析及相应的稳定方法；本文还列出了现有的标准（主要是 IEC 和国家标准），并在此基础上详细阐述了不同类型的光伏集成方案。分析了实际标准与未来需求之间的差距并提出了发展指南。 [外文原描述]： IEC TR 63534:2025 reviews existing theoretical attempts and engineering applications in the area of solar PV systems coupled to LVDC systems. There are three aspects that are identified to be highly relevant to standard compilations: power converters and possible control mechanisms that are eligible for facilitating the interlinking between PV and LVDC networks; local PV system islanding detection algorithms and fault ride through in case of main grid faults; stability analysis of PV interacting with LVDC systems and corresponding stabilization methods; An inventory of existing (mostly IEC and national) standards is also presented, based on which different sorts of PV integration scenarios are elaborated. Gaps between actual standards and future needs are analyzed and guidelines for evolution are presented.