| 发电机局部放电甚高频在线监测现场试验分析 |
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| 引用本文： | 徐阳,胡晓,杨楚明,张征平,喇元. 发电机局部放电甚高频在线监测现场试验分析[J]. 高压电器, 2009, 45(2) |
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| 作者姓名： | 徐阳 胡晓 杨楚明 张征平 喇元 |
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| 作者单位： | 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;广东电网公司电力科学研究院,广东,广州,510600 |
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| 摘 要： | 笔者研制了发电机局部放电甚高频在线监测系统,该系统基于双传感器定向耦合的原理进行信号采集,利用数字脉冲逐个识别技术通过软件来实现干扰抑制。结合在四川龚嘴电厂、福建池潭电厂等地的现场实验分析,验证了该系统的测试效果及其抗干扰能力。通过对某电厂发电机连续在线监测及故障预警的分析,证实了相比单一的放电量分析,采用统计参数趋势分析的方法能够更有效地反映发电机放电变化趋势。
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| 关 键 词： | 发电机 局部放电 甚高频 在线监测 |
Field Test Analysis of On-line VHF PD Monitoring for Generators |
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| XU Yang,HU Xiao,YANG Chu-ming,ZHANG Zheng-ping,LA Yuan. Field Test Analysis of On-line VHF PD Monitoring for Generators[J]. High Voltage Apparatus, 2009, 45(2) |
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| Authors: | XU Yang HU Xiao YANG Chu-ming ZHANG Zheng-ping LA Yuan |
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| Affiliation: | XU Yang1,HU Xiao1,YANG Chu-ming2,ZHANG Zheng-ping2,LA Yuan2 |
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| Abstract: | An on-line partial discharge monitoring system for generators using very high frequency range was proposed and has been applied to several hydro-plants in Gongzui,Sichuan Province and Chitan,Fujian Provence,ect.In this system,double capacitive couplers are installed close to the HV outlet terminal to obtain the single pulse waveform,and external disturbance can be separated from stator winding partial discharge via software by using the pulse-by-pulse analysis method.The consistent monitoring for a generato... |
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| Keywords: | generator partial discharge(PD) very high frequency(VHF) on-line monitoring |
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