华电技术 ›› 2008, Vol. 30 ›› Issue (1): 28-32.

• 基础研究 • 上一篇    下一篇

水轮发电机局部放电在线监测系统的研究

刘建峰1,郑贤桢2,胡晓3,任战国4   

  1. 1.福建省池潭水力发电厂,福建 泰宁354400;2. 福建省电力试验研究院 福建 福州350001;3.西安交通大学电力设备电气绝缘国家重点实验室,陕西 西安 710049;4.西安交通大学 科技园博源电气有限责任公司,陕西 西安 710054
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-01-25 发布日期:2008-01-25
  • 通讯作者: 刘建峰

Research on the on-line monitoring system for partial discharge of hydro-generators

LIU Jian-feng1, ZHENG Xian-zhen2, HU Xiao3, REN Zhan-guo4   

  1. 1. Fujian Chitan Hydroelectric Power Plant, Taining 354400, China; 2. Fujian Electric Power Test & Research Institute, Fuzhou 350001, China; 3. State Key Laboratory of Electrical Insulation for Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China; 4. Boyuan Electric Corporation Ltd., Xi’an Jiaotong University, Xi’an 710049, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-01-25 Published:2008-01-25
  • Contact: LIU Jian-feng

摘要: 介绍了一种基于甚高频测量技术和时延鉴别抗干扰原理的发电机局部放电在线监测装置,分析了装置采用的抗干扰方法。结合福建池潭电厂和广西柳州红花电厂的现场应用情况和试验分析,验证了该系统的测试效果及其抗干扰能力。通过技术经济分析,说明系统的建立有利于发电机组的安全运行和提高电站经济效益。

关键词: 水轮发电机, 局部放电, 在线监测, 甚高频

Abstract: An on-line monitoring system for partial discharge of generators was introduced, which was based on the Very High Frequency (VHF) measuring technology and the time-delay identification anti-interference principles. The anti-interference methods applied to this system were analyzed. Considering the application experiences on site and the experimental analysis, the test results and anti-interference capacity were verified. Techno-economic analysis shows that the establishment of such system is conducive to improve the safe operation and the economic benefit for power generation units.

Key words: hydro-generator, partial discharge, on-line monitoring, Very High Frequency (VHF)