| 小电流接地故障智能综合选线装置的研究 |
| |
| 引用本文： | 熊睿,张宏艳,张承学,吕艳萍,王鹏.小电流接地故障智能综合选线装置的研究[J].电力系统保护与控制,2006,34(6):6-10. |
| |
| 作者姓名： | 熊睿 张宏艳 张承学 吕艳萍 王鹏 |
| |
| 作者单位： | 中南电力设计院 湖北武汉430072(熊睿)，武汉大学电气工程学院 湖北武汉430072(张宏艳，张承学，吕艳萍，王鹏) |
| |
| 摘 要： | 提出了一种小电流接地故障智能选线方案。该智能选线方案根据系统运行不同的工况选择各自最为适用的选线方法(包括零序电流比幅比相法、应用小波检测故障突变特性方法、基于小波包分析的瞬时极性比较方法),扬长避短,从而达到最佳的选线目的。该方案不受运行方式等各种因素的影响,对干扰的容忍能力也很强。硬件装置采用APC I5467数据采集板,RTDS试验对该装置以及算法进行的验证表明,智能选线方案的选线准确率高,同时硬件也相当可靠。
|
| 关 键 词： | 智能选线 小波 奇异性检测 小波包 RTDS仿真 |
| 文章编号： | 1003-4897（2006）06-0006-05 |
| 收稿时间： | 2005-09-19 |
| 修稿时间： | 2005-09-192005-11-04 |
Study of an intelligent selection device in indirect-grounded fault system |
| |
| Affiliation: | 1. Zhongnan Electric Power Design Institute, Wuhan 430072, China ; 2. Wuhan University, Wuhan 430072, China |
| |
| Abstract: | An intelligent method for single indirect-grounded fault system is presented.In this method,according to different operation conditions,the optimal method will be applied.The intelligent method includes the absolute value and angle of the zero-sequence currents contrasts,abrupt change detection with wavelet based on wavelet packets instantaneous polarity contrast.It is not affected by operation conditions and has much endurance to interference.The hardware device is APCI5467 produced by Kongtop Corporation.RTDS simulation verifies the intelligent method is of selection effectiveness and hardware security. |
| |
| Keywords: | intelligent fault selection wavelet singular detection wavelet packet RTDS simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《电力系统保护与控制》浏览原始摘要信息 |
|
点击此处可从《电力系统保护与控制》下载全文 |
|
