Proper detection and treatment of power swing to reduce the risk of Blackouts

被引：15

作者：

Blumschein, J. ^{[1
]}

Yelgin, Y. ^{[1
]}

Kereit, M. ^{[1
]}

机构：

[1] Siemens AG, Energy Sector, D-13629 Berlin, Germany

来源：

2008 THIRD INTERNATIONAL CONFERENCE ON ELECTRIC UTILITY DEREGULATION AND RESTRUCTURING AND POWER TECHNOLOGIES, VOLS 1-6 | 2008年

关键词：

power system dynamic stability; protective relaying; power swing; distance protection; out of step;

D O I：

10.1109/DRPT.2008.4523821

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Any sudden load change in a power system, such as a fault, line switching etc. causes the system's generators to adjust to the new condition. In that case a power swing may occur. This paper describes a zero-setting power-swing detection method that is independent of network parameters. Power swing can be detected up to 10Hz swing frequency, also during open pole condition and during asymmetrical operation. A blocking logic prevents unselective trips by the distance protection. For unstable power swings a flexible out of step tripping function will be proposed. The coordination of power swing detection, distance protection and out of step protection provides a reliable system protection. The risk of unwanted trips and cascading effects in the power system will be reduced.

引用

页码：2440 / 2446

页数：7