| 高压线路新型电流差动保护原理与整定方法 |
| |
| 引用本文： | 袁荣湘.高压线路新型电流差动保护原理与整定方法[J].中国农村水利水电,2003(10):21-23,30. |
| |
| 作者姓名： | 袁荣湘 |
| |
| 作者单位： | 武汉大学电气工程学院,湖北,武汉,430072 |
| |
| 摘 要： | 对高压线路新型电流差动保护的原理进行了分析，说明新型电流差动保护实际上是比较在一定时间内累积的两端电荷流动的相对方向，并用电磁场理论初步说明了其物理意义，证明了新型电流差动保护原理的正确性。文中还对新型电流差动保护实现时的整定计算方法进行了讨论，定量分析了保护判据中动作门槛值的整定计算方法，对新型电流差动保护应用于实践具有重要的意义。
|
| 关 键 词： | 高压线路 电流差动保护原理 整定方法 电磁场理论 输电线路 电力系统 继电保护 线路保护 |
| 文章编号： | 1007-2284(2003)10-0021-03 |
Principle and Setting Method for New-Type Current Differential Protection of High-Voltage Transmission Line |
| |
| YUAN Rong-xiang.Principle and Setting Method for New-Type Current Differential Protection of High-Voltage Transmission Line[J].China Rural Water and Hydropower,2003(10):21-23,30. |
| |
| Authors: | YUAN Rong-xiang |
| |
| Abstract: | With the development of communication technolog y, the current differential protection will act as the primary protection of high -voltage transmission line. In this paper, the principle and setting method of a new type current differential protection of high-voltage transmission line is analyzed. In fact, the new-type current differential protection principle is t o compare with the relative directions of the accumulated electric charge flow a t two ends in a certain time period. The physical significance is described in b rief by using electromagnetic field theory, and the validity of the new-type cu rrent differential protection principle is proved. The setting calculation metho d of realization of the new-type current differential protection is discussed, and the quantitative analysis of the threshold setting values of the trip out cr iterion is carried out. This research shows the new-type current differential p rotection has a high sensitivity, fast speed, simple setting method, and great s ignificance for application of the new-type current differential protection in practice. |
| |
| Keywords: | differential protection high-voltage transmiss ion line electric charge failure component |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
