| 测量经消弧线圈接地电网中脱谐度的新方法 |
| |
| 引用本文： | 杨文荣,袁鹰霞,杨庆新,郭秀山. 测量经消弧线圈接地电网中脱谐度的新方法[J]. 河北工业大学学报, 2000, 29(6): 47-50 |
| |
| 作者姓名： | 杨文荣 袁鹰霞 杨庆新 郭秀山 |
| |
| 作者单位： | 1. 河北工业大学 电气信息学院，天津 300130
2. 天津机械工程学校，天津 300091 |
| |
| 摘 要： | 提出基于外加变频信号法测量配电网脱谐度的新方法。本方法采用带PT的消弧线圈，从PT低压侧注入零序恒流信号,通过频率扫描确定系统的谐振频率，再由公式计算出脱谐度。外加信号法测量脱谐度不影响系统正常运行，且不受系统运行的影响。使用本方法可将脱谐诬的测量从高压侧移至低压侧，测量安全快速、操作简单且准确度高。用本文提出的测量原理设计了一套测量装置，并通过了现场测试。
|
| 关 键 词： | 脱谐度 消弧线圈 中性点接地 外加信号法 扫频信号源 带阻滤波器 |
| 文章编号： | 1007-2373 （2000） 06-0047-04 |
| 修稿时间： | 2000-05-16 |
A New Measurement Method of Off Tuning Degree in the Distribution Network of Neutral Resonant Grounding |
| |
| YANG Wen-rong,YUAN Ying-xia,YANG Qing-xin,GUO Xiu-shan. A New Measurement Method of Off Tuning Degree in the Distribution Network of Neutral Resonant Grounding[J]. Journal of Hebei University of Technology, 2000, 29(6): 47-50 |
| |
| Authors: | YANG Wen-rong YUAN Ying-xia YANG Qing-xin GUO Xiu-shan |
| |
| Abstract: | This paper presents a new method of Off Tuning Degree's measurement based on injecting current in distribution network. Various f requency constant current is injected to second side of PT (potential transformer) which the petersen coil is the first side. This principle is not affected by system operation. It has high precision and high reliability. A device for measuring off tuning degree based on the pri nciple above-mentioned is developed, which have passed the practical test through measurement in Fuyang power station in Hebei province. Ope rational experience shows that this method is effective. |
| |
| Keywords: | Off Tuning Degree petersen coil injecting current band elimination filter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
