从传感器、噪声抑制、系统组成及局放分析等方面综述和评价了国内外发电机局部放电在线监测系统研究的现状, 并展望了该项研究的发展方向。 Abstract Th is paper p resent the recent research status of part ial discharge monito ring system fo r generato rs. F rom aspects of senso rs, no ise reject ion, system st ructure and part ial discharge analysis, the research results in th is area are summarized and evaluated. A t last, some future re2 search objects and t rend are summarized.