| 基于双电容耦合的发电机局部放电离线式测量新方法 |
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| 引用本文： | 张征平,喇元,刘炜,杨楚明,徐阳,胡晓.基于双电容耦合的发电机局部放电离线式测量新方法[J].大电机技术,2009(6). |
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| 作者姓名： | 张征平 喇元 刘炜 杨楚明 徐阳 胡晓 |
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| 作者单位： | 1. 广东电网电力科学研究院,广州,510600
2. 西安交通大学,西安,710049 |
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| 摘 要： | 对发电机绝缘局部放电量的测量是考核其绝缘状况的重要手段,但传统的测量方法由于受到试验现场的强电磁干扰,常常无法进行有效的测量,因而难以对发电机的绝缘状况做出准确的判断.本文提出了一种基于双电容耦合的发电机局部放电离线式测量新方法,通过设计两个电容的耦合性能及其传递过来的信号时差关系,可以有效地将发电机外的放电信号以及其他各类干扰信号予以消除,因而具有很强的抗干扰能力.现场的实际试验表明,该方法不仅使发电机的局部放电测量易于进行,还大大提高了发电机局部放电测量的准确度.
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| 关 键 词： | 双电容耦合 发电机 局部放电 离线式测量 |
A Novel Off-Line Method to Measure the Partial Discharge of Generator Based on Double Coupling Capacitors |
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| ZHANG Zheng-ping,LA Yuan,LIU Wei,YANG Chu-ming,XU Yang,HU Xiao.A Novel Off-Line Method to Measure the Partial Discharge of Generator Based on Double Coupling Capacitors[J].Large Electric Machine and Hydraulic Turbine,2009(6). |
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| Authors: | ZHANG Zheng-ping LA Yuan LIU Wei YANG Chu-ming XU Yang HU Xiao |
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| Abstract: | To measure the partial discharge(PD for short) quantity is an important approach to assess the insulation condition of generators.However,because of the strong electromagnetic disturbance on site,to conduct a valid measurement of PD is often an extremely tough job.So it is very difficult to perform an accurate evaluation about the insulation condition of the generator.This paper presents a novel method to measure the generator PD based on two coupling capacitors.Utilizing the proper coupling performance of ... |
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| Keywords: | double coupling capacitors generator partial discharge off-line measurement |
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