李振兴,吴铭哲,张小荣,杨梓康,翁汉琍,王秋杰
LI Zhenxing,WU Mingzhe,ZHANG Xiaorong,YANG Zikang,WENG Hanli,WANG Qiujie

• 1:新能源微电网湖北省协同创新中心
• 2:三峡大学电气与新能源学院
• 3:广东电网有限责任公司惠州供电局

摘要(Abstract)：

随着分布式发电在电力系统中的占比不断提高，非计划性孤岛所引发的安全问题日益凸显，对电网运行构成严重威胁。系统梳理了当前主流的孤岛检测技术，根据检测原理及实施位置将其划分为三大类：远程检测法、本地被动检测法、本地主动检测法。深入剖析各类检测方法的工作原理、技术特点及其最新研究进展，并客观分析各类方法的优缺性。针对现有技术存在的检测盲区大、影响电能质量等关键问题，提出未来亟需通过多判据融合、智能算法优化、注入式保护改进、保护与重合闸协同配合、仿真模型完善与验证等措施来完善现有检测方案，为构建含高比例分布式发电的新型电力系统提供关键技术支撑。
With the increasing penetration of distributed generation(DG) in power systems, the safety issues triggered by unintentional islanding have become increasingly prominent, posing a severe threat to grid operation. This paper presents a comprehensive review of the current mainstream islanding detection techniques and classifies them into three categories according to their detection principles and implementation locations: remote detection methods, local passive detection methods, and local active detection methods. The operating principles, technical characteristics, and latest research progress of each detection method are analyzed, and their respective advantages and disadvantages are critically evaluated. To address major challenges associated with existing techniques, including large non-detection zones(NDZs) and adverse impacts on power quality, several future research directions are identified, including multi-criterion information fusion, intelligent algorithm enhancement, improved signal-injectionbased protection schemes, coordinated operation of protection and reclosing functions, and the refinement and validation of simulation models. The review provides key technical support for the construction of modern power systems with high penetrations of distributed generation.

关键词(KeyWords)： 配电网;孤岛检测;分布式能源
distribution network;islanding detection;distributed energy resource

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（52307109）

作者(Author): 李振兴,吴铭哲,张小荣,杨梓康,翁汉琍,王秋杰
LI Zhenxing,WU Mingzhe,ZHANG Xiaorong,YANG Zikang,WENG Hanli,WANG Qiujie

DOI: 10.19585/j.zjdl.202608006

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